0001458412-21-000022 | 10-Q | XBRL Viewer | Crossfirst Bankshares INC

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Cover Page - shares	3 Months Ended
Cover Page - shares	Mar. 31, 2021	May 05, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-39028
Entity Registrant Name	CROSSFIRST BANKSHARES, INC.
Entity Incorporation, State or Country Code	KS
Entity Tax Identification Number	26-3212879
Entity Address, Address Line One	11440 Tomahawk Creek Parkway
Entity Address, City or Town	Leawood,
Entity Address, State or Province	KS
Entity Address, Postal Zip Code	66211
City Area Code	913
Local Phone Number	312-6822
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	CFB
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		51,580,761
Entity Central Index Key	0001458412
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 630,787	$ 408,810
Available-for-sale securities - taxable	192,031	177,238
Available-for-sale securities - tax-exempt	493,423	477,350
Loans, net of allowance for loan losses of $74,551 and $75,295 at March 31, 2021 and December 31, 2020, respectively	4,434,049	4,366,602
Premises and equipment, net	69,270	70,509
Restricted equity securities	14,080	15,543
Interest receivable	17,987	17,236
Foreclosed assets held for sale	2,347	2,347
Bank-owned life insurance	67,914	67,498
Other	76,186	56,170
Total assets	5,998,074	5,659,303
Deposits
Noninterest-bearing	794,559	718,459
Savings, NOW and money market	3,325,220	2,932,799
Time	931,791	1,043,482
Total deposits	5,051,570	4,694,740
Federal funds purchased and repurchase agreements	3,294	2,306
Federal Home Loan Bank advances	283,100	293,100
Other borrowings	974	963
Interest payable and other liabilities	30,302	43,766
Total liabilities	5,369,240	5,034,875
Stockholders’ equity
Common stock	523	523
Treasury stock	(7,113)	(6,061)
Additional paid-in capital	523,156	522,911
Retained earnings	89,722	77,652
Accumulated other comprehensive income	22,546	29,403
Total stockholders’ equity	628,834	624,428
Total liabilities and stockholders’ equity	$ 5,998,074	$ 5,659,303

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Allowance for loan losses	$ 74,551	$ 75,295
Stockholders’ equity
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock authorized (in shares)	200,000,000	200,000,000
Common stock issued (in shares)	52,376,779	52,289,129
Treasury stock (in shares)	698,110	609,613

Consolidated Statements of Income - Unaudited - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest Income
Loans, including fees	$ 43,758	$ 48,339
Available-for-sale securities - taxable	751	1,774
Available-for-sale securities - tax-exempt	3,351	3,312
Deposits with financial institutions	128	491
Dividends on bank stocks	165	292
Total interest income	48,153	54,208
Interest Expense
Deposits	5,728	14,272
Fed funds purchased and repurchase agreements	1	62
Federal Home Loan Bank Advances	1,283	1,611
Other borrowings	24	35
Total interest expense	7,036	15,980
Net Interest Income	41,117	38,228
Provision for loan losses	7,500	13,950
Net Interest Income after Provision for Loan Losses	33,617	24,278
Non-Interest Income
Realized gains on available-for-sale securities	10	393
Income from bank-owned life insurance	416	456
Swap fees and credit valuation adjustments, net	155	(9)
Other non-interest income	278	254
Total non-interest income	4,144	2,087
Non-Interest Expense
Salaries and employee benefits	13,553	14,390
Occupancy	2,494	2,085
Professional fees	782	671
Deposit insurance premiums	1,151	1,016
Data processing	716	692
Advertising	303	500
Software and communication	1,065	876
Foreclosed assets, net	50	10
Other non-interest expense	2,704	1,975
Total non-interest expense	22,818	22,215
Net Income Before Taxes	14,943	4,150
Income tax expense	2,908	293
Net Income	$ 12,035	$ 3,857
Basic Earnings Per Share (in dollars per share)	$ 0.23	$ 0.07
Diluted Earnings Per Share (in dollars per share)	$ 0.23	$ 0.07
Service charges and fees on customer accounts
Non-Interest Income
Non-interest income	$ 957	$ 508
ATM and credit card interchange income
Non-Interest Income
Non-interest income	$ 2,328	$ 485

Consolidated Statements of Comprehensive Income - Unaudited - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 12,035	$ 3,857
Other Comprehensive Income (Loss)
Unrealized gain (loss) on available-for-sale securities	(9,070)	8,532
Less: income tax expense (benefit)	(2,221)	2,084
Unrealized gain (loss) on available-for-sale securities, net of income tax	(6,849)	6,448
Reclassification adjustment for realized gains included in income	10	393
Less: income tax	2	96
Less: reclassification adjustment for realized gains included in income, net of income tax	8	297
Other comprehensive income (loss)	(6,857)	6,151
Comprehensive Income	$ 5,178	$ 10,008

Consolidated Statements of Stockholders' Equity - Unaudited - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2019		51,969,203
Beginning balance at Dec. 31, 2019	$ 601,644	$ 520	$ 519,870	$ 64,803	$ 16,451	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,857			3,857
Change in unrealized appreciation on available-for-sale securities	6,151				6,151
Issuance of shares from equity-based awards (in shares)		128,859
Issuance of shares from equity-based awards	(670)	$ 1	(671)
Employee receivables from sale of stock	30		1	29
Stock-based compensation	934		934
Ending balance (in shares) at Mar. 31, 2020		52,098,062
Ending balance at Mar. 31, 2020	611,946	$ 521	520,134	68,689	22,602	0
Beginning balance (in shares) at Dec. 31, 2020		51,679,516
Beginning balance at Dec. 31, 2020	624,428	$ 523	522,911	77,652	29,403	(6,061)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	12,035			12,035
Change in unrealized appreciation on available-for-sale securities	(6,857)				(6,857)
Issuance of shares from equity-based awards (in shares)		87,650
Issuance of shares from equity-based awards	(404)		(404)
Open market common share repurchases (in shares)		(88,497)
Open market common share repurchases	(1,052)					(1,052)
Employee receivables from sale of stock	35			35
Stock-based compensation	649		649
Ending balance (in shares) at Mar. 31, 2021		51,678,669
Ending balance at Mar. 31, 2021	$ 628,834	$ 523	$ 523,156	$ 89,722	$ 22,546	$ (7,113)

Consolidated Statements of Cash Flows - Unaudited - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Activities
Net income	$ 12,035	$ 3,857
Items not requiring (providing) cash
Depreciation and amortization	1,375	1,295
Provision for loan losses	7,500	13,950
Accretion of discounts and amortization of premiums on securities	1,310	1,473
Equity based compensation	649	934
Deferred income taxes	1,824	2,881
Net realized gains on available-for-sale securities	(10)	(393)
Changes in
Interest receivable	(751)	(1,242)
Other assets	(28,730)	(717)
Other liabilities	(4,937)	(9,368)
Net cash provided by (used in) operating activities	(9,735)	12,670
Investing Activities
Net change in loans	(74,947)	(169,595)
Purchases of available-for-sale securities	(74,575)	(11,861)
Proceeds from maturities of available-for-sale securities	33,329	21,528
Proceeds from sale of available-for-sale securities	0	3,841
Purchase of premises and equipment	(118)	(331)
Purchase of restricted equity securities	0	(970)
Proceeds from sale of restricted equity securities	1,626	0
Net cash used in investing activities	(114,685)	(157,388)
Financing Activities
Net increase in demand deposits, savings, NOW and money market accounts	468,521	185,747
Net decrease in time deposits	(111,691)	(136,684)
Net increase in fed funds purchased and repurchase agreements	988	24,025
Proceeds from Federal Home Loan Bank advances	0	70,000
Repayment of Federal Home Loan Bank advances	(10,000)	(26,063)
Issuance of common shares, net of issuance cost	0	1
Repurchase of common stock	(1,052)	0
Acquisition of common stock for tax withholding obligations	(404)	(671)
Net decrease in employee receivables	35	30
Net cash provided by financing activities	346,397	116,385
Increase (Decrease) in Cash and Cash Equivalents	221,977	(28,333)
Cash and Cash Equivalents, Beginning of Period	408,810	187,320
Cash and Cash Equivalents, End of Period	630,787	158,987
Supplemental Cash Flows Information
Interest paid	7,287	17,199
Income taxes paid	$ 130	$ 0

Nature of Operations and Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Nature of Operations and Summary of Significant Accounting Policies

Organization and Nature of Operations

CrossFirst Bankshares, Inc. (the “Company”) is a bank holding company whose principal activities are the ownership and management of its wholly-owned subsidiary, CrossFirst Bank (the “Bank”). In addition, the Bank has three subsidiaries including CrossFirst Investments, Inc. (“CFI”) that holds investments in marketable securities, CFBSA I, LLC that holds foreclosed assets and CFBSA II, LLC that holds foreclosed assets.

Basis of Presentation

The Company’s accounting and reporting policies conform to accounting principles generally accepted in the United States (“GAAP”). The consolidated financial statements include the accounts of the Company, the Bank, CFI, CFBSA I, LLC and CFBSA II, LLC. All significant intercompany accounts and transactions have been eliminated in consolidation.

The consolidated interim financial statements are unaudited and certain information and footnote disclosures presented in accordance with GAAP have been condensed or omitted and should be read in conjunction with the Company’s consolidated financial statements and footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 Form 10-K”), filed with the Securities and Exchange Commission (the “SEC”) on February 26, 2021.

In the opinion of management, the interim financial statements include all adjustments which are of a normal, recurring nature necessary for the fair presentation of the financial position, results of operations, and cash flows of the Company and the disclosures made are adequate to make the interim financial information not misleading. The consolidated financial statements have been prepared in accordance with GAAP for interim financial information and the instructions to Form 10-Q adopted by the SEC.

No significant changes in the accounting policies of the Company occurred since December 31, 2020, the most recent date financial statements were provided within the Company’s 2020 Form 10-K. Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.

Use of Estimates

The Company identified accounting policies and estimates that, due to the difficult, subjective or complex judgments and assumptions inherent in those policies and estimates and the potential sensitivity of the Company’s financial statements to those judgments and assumptions, are critical to an understanding of the Company’s financial condition and results of operations. Actual results could differ from those estimates. In particular, the novel coronavirus (“COVID-19”) pandemic and resulting impacts to economic conditions, as well as adverse impacts to the Company’s operations, may impact future estimates. The allowance for loan losses, deferred tax asset, and fair value of financial instruments are particularly susceptible to significant change.

Cash Equivalents

The Company had $541 million of cash and cash equivalents at the Federal Reserve Bank of Kansas City as of March 31, 2021. The reserve required at March 31, 2021 was $0.

Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”)

The CARES Act gave financial institutions the right to elect to suspend GAAP principles and regulatory determinations for loan modifications relating to COVID-19 that would otherwise be categorized as TDRs from March 1, 2020, through December 31, 2020. On December 27, 2020, the Consolidated Appropriations Act, 2021 was signed into law, which extended the period during which the Company may suspend GAAP principles and regulatory determinations for loan modifications relating to COVID-19 that would otherwise be categorized as TDRs through January 1, 2022 or 60 days after the date when the national emergency concerning COVID-19 terminates. The Company elected to apply the guidance starting in the first quarter of 2020.

Changes Affecting Comparability

Beginning with the quarter ended March 31, 2021, the Company consolidated the “Goodwill and other intangible assets, net” into “other assets” within the Consolidated Balance Sheets. The consolidation was due to the immateriality of the remaining intangible assets. The change had no impact on net income.

For the quarter ended March 31, 2021, the Company consolidated “equipment costs, other asset depreciation and amortization” into “other noninterest expense” within the Consolidated Statements of Income. In addition, the Company broke out “foreclosed assets, net” that was previously consolidated. As a result, changes within the Consolidated Statements of Income in the prior periods were made to conform to the current period presentation. The changes: (i) consolidate lower balance line items or (ii) provide additional detail about the Company’s operations. The changes had no impact on net income.

Emerging Growth Company (“EGC”)

The Company is currently an EGC. An EGC may take advantage of reduced reporting requirements and is relieved of certain other significant requirements that are otherwise generally applicable to public companies. Among the reductions and reliefs, the Company elected to extend the transition period for complying with new or revised accounting standards affecting public companies. This means that the financial statements the Company files or furnishes, will not be subject to all new or revised accounting standards generally applicable to public companies for the transition period for so long as the Company remains an EGC or until the Company affirmatively and irrevocably opts out of the extended transition period under the JOBS Act.

Recent Accounting Pronouncements

The following table provides information about Accounting Standard Updates (“ASUs”) the Company anticipates to adopt in the future:

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-13

Financial Instruments-Credit Losses

If the Company maintains its EGC status, the Company is not required to implement this standard until January 2023. The Company anticipates an adoption date of January 2022.

Requires an entity to utilize a new impairment model known as the current expected credit loss model to estimate its lifetime expected credit loss and record an allowance that, when deducted from amortized cost basis of the financial asset, presents the net amount expected to be collected on the financial asset.

The Company established a committee of individuals from applicable departments to oversee the implementation process. The Company completed the third-party software implementation phase that included data capture and portfolio segmentation amongst other items.

The Company completed parallel runs in 2019. During the period ended December 31, 2020, the Company continued to perform parallel runs using 2020 data and continued to recalibrate inputs as necessary. The Company is evaluating the internal control changes that will be necessary to transition to the third-party platform and third-party testing is anticipated later in 2021.

At this time, an estimate of the impact cannot be established as the Company continues to evaluate the inputs into the model. The actual impact could be significantly affected by the composition, characteristics, and quality of the underlying loan portfolio at the time of adoption.

ASU 2016-02

Leases (Topic 842)

The Company expects to implement this standard on January 1, 2022, unless the Company loses its EGC status during 2021. If EGC status changes, the Company would therefore be required to implement the ASU as of the beginning of 2021.

Requires lessees and lessors to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements.

The update requires lessees and lessors to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach with the option to elect certain practical expedients. The update will also increase disclosures around leases, including qualitative and specific quantitative measures.

The Company expects to apply the update as of the beginning of the period of adoption and the Company does not plan to restate comparative periods. The Company expects to elect certain optional practical expedients.

The Company gathered all potential lease and embedded lease agreements and is evaluating the applicability and impact to the financial statements.

The Company’s current operating leases relate primarily to four branch locations. Based on the current leases, the Company anticipates recognizing a lease liability and related right-to-use asset on its balance sheet, with an immaterial impact to its income statement compared to the current lease accounting model. However, the ultimate impact of the standard will depend on the Company's lease portfolio as of the adoption date.

Earnings Per Share

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Earnings Per Share

The following table presents the computation of basic and diluted earnings per share:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands except per share data)
Earnings per Share


Net income available to common stockholders	$	12,035	$	3,857
Weighted average common shares	51,657,204		52,071,484
Earnings per share	$	0.23	$	0.07
Dilutive Earnings Per Share


Net income available to common stockholders	$	12,035	$	3,857
Weighted average common shares	51,657,204		52,071,484
Effect of dilutive shares	724,270		588,786
Weighted average dilutive common shares	52,381,474		52,660,270
Diluted earnings per share	$	0.23	$	0.07

Stock-based awards not included because to do so would be antidilutive	669,112		905,406

Securities

3 Months Ended

Mar. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Securities

The amortized cost and approximate fair values, together with gross unrealized gains and losses, of period end available-for-sale securities consisted of the following:


	March 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	138,231	$	2,912	$	1,464	$	139,679
Collateralized mortgage obligations - GSE residential	38,206		785		26		38,965
State and political subdivisions	474,912		28,517		862		502,567
Corporate bonds	4,251		74		82		4,243
Total available-for-sale securities	$	655,600	$	32,288	$	2,434	$	685,454


	December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	104,839	$	4,277	$	—	$	109,116
Collateralized mortgage obligations - GSE residential	52,070		984		42		53,012
State and political subdivisions	454,486		33,642		31		488,097
Corporate bonds	4,259		104		—		4,363
Total available-for-sale securities	$	615,654	$	39,007	$	73	$	654,588

The amortized cost and fair value of available-for-sale securities at March 31, 2021, by contractual maturity, are shown below:


	March 31, 2021
	Within			After One to			After Five to			After
	One Year			Five Years			Ten Years			Ten Years			Total
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential(1)
Amortized cost	$	—		$	48		$	181		$	138,002		$	138,231
Estimated fair value	$	—		$	50		$	193		$	139,436		$	139,679
Weighted average yield(2)	—		%	4.60		%	3.91		%	1.72		%	1.72		%
Collateralized mortgage obligations - GSE residential(1)
Amortized cost	$	—		$	—		$	2,469		$	35,737		$	38,206
Estimated fair value	$	—		$	—		$	2,645		$	36,320		$	38,965
Weighted average yield(2)	—		%	—		%	2.75		%	1.59		%	1.66		%
State and political subdivisions
Amortized cost	$	652		$	5,947		$	65,518		$	402,795		$	474,912
Estimated fair value	$	654		$	6,024		$	70,889		$	425,000		$	502,567
Weighted average yield(2)	3.54		%	3.86		%	3.32		%	2.82		%	2.90		%
Corporate bonds
Amortized cost	$	—		$	357		$	3,894		$	—		$	4,251
Estimated fair value	$	—		$	366		$	3,877		$	—		$	4,243
Weighted average yield(2)	—		%	4.10		%	4.54		%	—		%	4.51		%
Total available-for-sale securities
Amortized cost	$	652		$	6,352		$	72,062		$	576,534		$	655,600
Estimated fair value	$	654		$	6,440		$	77,604		$	600,756		$	685,454
Weighted average yield(2)	3.54		%	3.88		%	3.37		%	2.48		%	2.59		%
(1) Actual maturities may differ from contractual maturities because issuers may have the rights to call or prepay obligations with or without prepayment penalties.
(2) Yields are calculated based on amortized cost.

The following tables show the number of securities, unrealized loss, and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temporarily impaired (“OTTI”), aggregated by investment class and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2021 and December 31, 2020:


	March 31, 2021
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	55,185	$	1,464	8	$	—	$	—	—	$	55,185	$	1,464	8
Collateralized mortgage obligations - GSE residential	7,591		26		6	—		—		—	7,591		26		6
State and political subdivisions	44,008		861		32	24		1		1	44,032		862		33
Corporate bonds	3,418		82		1	—		—		—	3,418		82		1
Total temporarily impaired securities	$	110,202	$	2,433	47	$	24	$	1	1	$	110,226	$	2,434	48


	December 31, 2020
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	—	$	—	—	$	—	$	—	—	$	—	$	—	—
Collateralized mortgage obligations - GSE residential	9,933		42		5	—		—		—	9,933		42		5
State and political subdivisions	8,525		31		8	25		—		1	8,550		31		9
Corporate bonds	—		—		—	—		—		—	—		—		—
Total temporarily impaired securities	$	18,458	$	73	13	$	25	$	—	1	$	18,483	$	73	14

The Company expects to recover the amortized cost basis over the term of the securities. The Company does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity.

Gains and losses on the sale of debt securities are recorded on the trade date and are determined using the specific identification method. Gross gains of $21 thousand and $402 thousand and gross losses of $11 thousand and $9 thousand resulting from sales of available-for-sale securities were realized for the three months ended March 31, 2021 and 2020, respectively. The gross gains as of March 31, 2020, included $75 thousand related to a previously disclosed OTTI municipal security that was settled in 2020.

Equity Securities

Equity securities consist of a $2 million investment in a Community Reinvestment Act (“CRA”) mutual fund and an $11 million privately-held security acquired in the fourth quarter of 2020 as part of a debt restructuring. Equity securities are included in “other assets” on the Consolidated Balance Sheets.

The privately-held security was acquired in partial satisfaction of debts previously contracted. The Company elected a measurement alternative that allows the security to remain at cost until an impairment is identified or an observable price change for an identical or similar investment of the same issuer occurs. Impairment is recorded when there is evidence that the expected fair value of the investment has declined to below the recorded cost. No changes to the cost basis occurred during the first quarter of 2021. The Company is required to make good faith efforts to dispose of the security. The shares may be held for a maximum of five years, subject to a five-year extension that would result in a change to Tier 1 capital.

The following is a summary of the unrealized and realized gains and losses recognized in net income on equity securities:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Net gains (losses) recognized during the reporting period on equity securities	$	(39)	$	34
Less: net gains recognized during the reporting period on equity securities sold during the reporting period	—		—
Unrealized gain (losses) recognized during the reporting period on equity securities still held at the reporting date	$	(39)	$	34

Loans and Allowance for Loan Losses ("ALLL")

3 Months Ended

Mar. 31, 2021

Receivables [Abstract]

Loans and Allowance for Loan Losses ("ALLL")

Loans and Allowance for Loan Losses (“ALLL”)

Categories of loans at March 31, 2021 and December 31, 2020 include:


	March 31, 2021		December 31, 2020

	(Dollars in thousands)
Commercial	$	1,284,047	$	1,338,757
Energy	342,899		345,233
Commercial real estate	1,191,634		1,179,534
Construction and land development	617,200		563,144
Residential and multifamily real estate	687,893		680,932
Paycheck Protection Program (“PPP”)	336,355		292,230


Consumer	62,917		55,270
Gross loans	4,522,945		4,455,100
Less: Allowance for loan losses	74,551		75,295
Less: Net deferred loan fees and costs	14,345		13,203
Net loans	$	4,434,049	$	4,366,602

Allowance for Loan Losses

The ALLL is established as losses are estimated to have occurred through a provision for loan losses charged to income. Loan losses are charged against the allowance when management believes the loan balance is not collectible. Subsequent recoveries, if any, are credited to the allowance.

The ALLL is evaluated on a regular basis by management and is based upon management’s periodic review of its ability to collect the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available.

The ALLL consists of allocated and general components. The allocated component relates to loans that are classified as impaired. For those loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers all loans on

accrual and is based on historical charge-off experience and expected loss given default derived from the Company’s internal risk rating process and loan categories. Other adjustments may be made to the allowance for pools of loans after an assessment of internal or external influences on credit quality that are not fully reflected in the historical loss or risk rating data.

The Company evaluates the loan risk grading system definitions, portfolio segment definitions and ALLL methodology on an ongoing basis. No changes to loan definitions, segmentation, and ALLL methodology occurred during the first quarter of 2021.

The following tables summarize the activity in the ALLL by portfolio segment and disaggregated based on the Company’s impairment methodology. The allocation in one portfolio segment does not preclude its availability to absorb losses in other segments:


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended March 31, 2021
Allowance for loan losses
Beginning balance	$	24,693	$	18,341	$	22,354	$	3,612	$	5,842	$	—	$	453	$	75,295
Provision charged to expense	7,015		1,951		(1,745)		225		214		—		(160)		7,500
Charge-offs	(8,266)		—		—		—		—		—		—		(8,266)
Recoveries	22		—		—		—		—		—		—		22
Ending balance	$	23,464	$	20,292	$	20,609	$	3,837	$	6,056	$	—	$	293	$	74,551


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended March 31, 2020
Allowance for loan losses
Beginning balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Provision charged to expense	3,271		2,313		4,538		1,505		2,141		—		182		13,950
Charge-offs	(18,077)		(1,279)		—		—		—		—		(104)		(19,460)
Recoveries	71		—		—		—		—		—		1		72
Ending balance	$	21,129	$	7,599	$	12,623	$	5,021	$	4,687	$	—	$	399	$	51,458


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
March 31, 2021
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	832	$	4,938	$	2,990	$	—	$	—	$	—	$	—	$	8,760
Collectively evaluated for impairment	$	22,632	$	15,354	$	17,619	$	3,837	$	6,056	$	—	$	293	$	65,791
Ending balance	$	23,464	$	20,292	$	20,609	$	3,837	$	6,056	$	—	$	293	$	74,551

Allocated to loans:
Individually evaluated for impairment	$	39,287	$	27,215	$	36,028	$	—	$	6,302	$	—	$	241	$	109,073
Collectively evaluated for impairment	$	1,244,760	$	315,684	$	1,155,606	$	617,200	$	681,591	$	336,355	$	62,676	$	4,413,872
Ending balance	$	1,284,047	$	342,899	$	1,191,634	$	617,200	$	687,893	$	336,355	$	62,917	$	4,522,945


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
December 31, 2020
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	1,115	$	3,370	$	5,048	$	—	$	—	$	—	$	—	$	9,533
Collectively evaluated for impairment	$	23,578	$	14,971	$	17,306	$	3,612	$	5,842	$	—	$	453	$	65,762
Ending balance	$	24,693	$	18,341	$	22,354	$	3,612	$	5,842	$	—	$	453	$	75,295
Allocated to loans:
Individually evaluated for impairment	$	44,678	26,045		$	44,318	$	—	$	6,329	$	—	$	244	$	121,614
Collectively evaluated for impairment	$	1,294,079	$	319,188	$	1,135,216	$	563,144	$	674,603	$	292,230	$	55,026	$	4,333,486
Ending balance	$	1,338,757	$	345,233	$	1,179,534	$	563,144	$	680,932	$	292,230	$	55,270	$	4,455,100

Credit Risk Profile

The Company analyzes its loan portfolio based on internal rating categories (grades 1 - 8), portfolio segmentation and payment activity. These categories are utilized to develop the associated ALLL. A description of the loan grades and segments follows:

Loan Grades

•Pass (risk rating 1-4) - The category includes loans that are considered satisfactory. The category includes borrowers that generally maintain good liquidity and financial condition or the credit is currently protected with sales trends remaining flat or declining. Most ratios compare favorably with industry norms and Company policies. Debt is programmed and timely repayment is expected.

•Special Mention (risk rating 5) - The category includes borrowers that generally exhibit adverse trends in operations or an imbalanced position in their balance sheet that has not reached a point where repayment is jeopardized. Credits are currently protected but, if left uncorrected, the potential weaknesses may result in deterioration of the repayment prospects for the credit or in the Company’s credit or lien position at a future date. These credits are not adversely classified and do not expose the Company to enough risk to warrant adverse classification.

•Substandard (risk rating 6) - The category includes borrowers that generally exhibit well-defined weakness(es) that jeopardize repayment. Credits are inadequately protected by the current worth and paying capacity of the obligor or of the collateral pledged. A distinct possibility exists that the Company will sustain some loss if deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets classified substandard. Substandard loans include both performing and nonperforming loans and are broken out in the table below.

•Doubtful (risk rating 7) - The category includes borrowers that exhibit weaknesses inherent in a substandard credit and characteristics that these weaknesses make collection or liquidation in full highly questionable or improbable based on existing facts, conditions and values. Because of reasonably specific pending factors, which may work to the advantage and strengthening of the assets, classification as a loss is deferred until its more exact status may be determined.

•Loss (risk rating 8) - Credits which are considered uncollectible or of such little value that their continuance as a bankable asset is not warranted.

Loan Portfolio Segments

•Commercial - The category includes loans to commercial customers for use in financing working capital, equipment purchases and expansions. Repayment is primarily from the cash flow of a borrower’s principal business operation. Credit risk is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations.

•Energy - The category includes loans to oil and natural gas customers for use in financing working capital needs, exploration and production activities, and acquisitions. The loans are repaid primarily from the conversion of crude oil and natural gas to cash. Credit risk is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations. Energy loans are typically collateralized with the underlying oil and gas reserves.

•Commercial Real Estate - The category includes loans that typically involve larger principal amounts and repayment of these loans is generally dependent on the successful operations of the property securing the loan or the business conducted on the property securing the loan. These are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Credit risk may be impacted by the creditworthiness of a borrower, property values and the local economies in the borrower’s market areas.

•Construction and Land Development - The category includes loans that are usually based upon estimates of costs and estimated value of the completed project and include independent appraisal reviews and a financial analysis of the developers and property owners. Sources of repayment include permanent loans, sales of developed property or an interim loan commitment from the Company until permanent financing is obtained. These loans are higher risk than other real estate loans due to their ultimate repayment being sensitive to interest rate changes, general economic conditions and the availability of long-term financing. Credit risk may be impacted by the creditworthiness of a borrower, property values and the local economies in the borrower’s market areas.

•Residential and Multifamily Real Estate - The category includes loans that are generally secured by owner-occupied 1-4 family residences or multifamily properties. Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers or underlying tenants. Credit risk in these loans can be impacted by economic

conditions within or outside the borrower’s market areas that might impact either property values, a borrower’s personal income, or residents’ income.

•PPP - The category includes loans that were established by the CARES Act which authorized forgivable loans to small businesses to pay their employees during the COVID-19 pandemic. The loans are 100 percent guaranteed by the SBA and repayment is primarily dependent on the borrower’s cash flow or SBA repayment approval.

•Consumer - The category includes revolving lines of credit and various term loans such as automobile loans and loans for other personal purposes. Repayment is primarily dependent on the personal income and credit rating of the borrowers. Credit risk is driven by consumer economic factors (such as unemployment and general economic conditions in the borrower’s market area) and the creditworthiness of a borrower.

The following tables present the credit risk profile of the Company’s loan portfolio based on internal rating categories (grades 1 - 8), portfolio segmentation, and payment activity:



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
March 31, 2021
Commercial	$	1,171,818	$	43,247	$	46,912	$	20,409	$	1,661	$	—	$	1,284,047
Energy	141,441		82,314		92,032		23,421		3,691		—		342,899
Commercial real estate	1,054,675		66,101		60,037		10,821		—		—		1,191,634
Construction and land development	616,061		—		1,139		—		—		—		617,200
Residential and multifamily real estate	679,335		43		5,440		3,075		—		—		687,893
PPP	336,355		—		—		—		—		—		336,355


Consumer	62,676		—		—		241		—		—		62,917
	$	4,062,361	$	191,705	$	205,560	$	57,967	$	5,352	$	—	$	4,522,945



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
December 31, 2020
Commercial	$	1,182,519	$	66,142	$	63,407	$	26,124	$	565	$	—	$	1,338,757
Energy	145,598		90,134		83,574		22,177		3,750		—		345,233
Commercial real estate	1,035,056		67,710		57,680		19,088		—		—		1,179,534
Construction and land development	561,871		125		1,148		—		—		—		563,144
Residential and multifamily real estate	672,327		305		5,199		3,101		—		—		680,932
PPP	292,230		—		—		—		—		—		292,230


Consumer	55,026		—		—		244		—		—		55,270
	$	3,944,627	$	224,416	$	211,008	$	70,734	$	4,315	$	—	$	4,455,100

Loan Portfolio Aging Analysis

The following tables present the Company’s loan portfolio aging analysis as of March 31, 2021 and December 31, 2020:


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
March 31, 2021
Commercial	$	7,813	$	403	$	15,709	$	23,925	$	1,260,122	$	1,284,047	$	—
Energy	748		—		6,741		7,489		335,410		342,899		—
Commercial real estate	—		—		4,097		4,097		1,187,537		1,191,634		—
Construction and land development	862		—		—		862		616,338		617,200		—
Residential and multifamily real estate	1,160		—		6,028		7,188		680,705		687,893		3,183
PPP	—		—		—		—		336,355		336,355		—


Consumer	—		—		—		—		62,917		62,917		—
	$	10,583	$	403	$	32,575	$	43,561	$	4,479,384	$	4,522,945	$	3,183


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
December 31, 2020
Commercial	$	8,497	$	264	$	11,236	$	19,997	$	1,318,760	$	1,338,757	$	—
Energy	—		—		7,173		7,173		338,060		345,233		372
Commercial real estate	63		7,677		4,825		12,565		1,166,969		1,179,534		—
Construction and land development	—		—		—		—		563,144		563,144		—
Residential and multifamily real estate	1,577		—		3,520		5,097		675,835		680,932		652
PPP	—		—		—		—		292,230		292,230		—
Consumer	—		—		—		—		55,270		55,270		—
	$	10,137	$	7,941	$	26,754	$	44,832	$	4,410,268	$	4,455,100	$	1,024

Impaired Loans

A loan is considered impaired, in accordance with the impairment accounting guidance (ASC 310-10-35-16), when based on current information and events, it is probable the Company will be unable to collect all amounts due from the borrower in accordance with the contractual terms of the loan. Impaired loans include nonperforming loans but also include loans modified in troubled debt restructurings where concessions have been granted to borrowers experiencing financial difficulties. The intent of concessions is to maximize collection.

Groups of loans with similar risk characteristics are collectively evaluated for impairment based on the group’s historical loss experience adjusted for changes in trends, conditions and other relevant factors that affect repayment of the loans. The following tables present loans individually evaluated for impairment, including all restructured and formerly restructured loans, for the periods ended March 31, 2021 and December 31, 2020:


			Unpaid
	Recorded Balance		Principal Balance		Specific Allowance
	(Dollars in thousands)
March 31, 2021
Loans without a specific valuation
Commercial	$	36,174	$	38,124	$	—
Energy	103		103		—
Commercial real estate	10,553		12,138		—
Construction and land development	—		—		—
Residential and multifamily real estate	6,302		6,558		—
PPP	—		—		—


Consumer	241		241		—
Loans with a specific valuation
Commercial	3,113		15,297		832
Energy	27,112		35,204		4,938
Commercial real estate	25,475		25,475		2,990
Construction and land development	—		—		—
Residential and multifamily real estate	—		—		—
PPP	—		—		—


Consumer	—		—		—


Total
Commercial	39,287		53,421		832
Energy	27,215		35,307		4,938
Commercial real estate	36,028		37,613		2,990
Construction and land development	—		—		—
Residential and multifamily real estate	6,302		6,558		—
PPP	—		—		—


Consumer	241		241		—
	$	109,073	$	133,140	$	8,760


			Unpaid
	Recorded Balance		Principal Balance		Specific Allowance
	(Dollars in thousands)
December 31, 2020
Loans without a specific valuation
Commercial	$	36,111	$	50,245	$	—
Energy	3,864		6,677		—
Commercial real estate	10,079		11,663		—
Construction and land development	—		—		—
Residential and multifamily real estate	6,329		6,585		—
PPP	—		—		—
Consumer	244		244		—
Loans with a specific valuation
Commercial	8,567		8,567		1,115
Energy	22,181		27,460		3,370
Commercial real estate	34,239		34,239		5,048
Construction and land development	—		—		—
Residential and multifamily real estate	—		—		—
PPP	—		—		—
Consumer	—		—		—

Total
Commercial	44,678		58,812		1,115
Energy	26,045		34,137		3,370
Commercial real estate	44,318		45,902		5,048
Construction and land development	—		—		—
Residential and multifamily real estate	6,329		6,585		—
PPP	—		—		—
Consumer	244		244		—
	$	121,614	$	145,680	$	9,533

The table below shows interest income recognized during the three month periods ended March 31, 2021 and 2020 for impaired loans, including all restructured and formerly restructured loans, held at the end of each period:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Commercial	$	303	$	910
Energy	16		122
Commercial real estate	287		123
Construction and land development	—		—
Residential and multifamily real estate	36		40
PPP	—		—


Consumer	—		—
Total interest income recognized	$	642	$	1,195

The table below shows the three month average balance of impaired loans for the periods ended March 31, 2021 and 2020 by loan category for impaired loans, including all restructured and formerly restructured loans, held at the end of each period:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Commercial	$	41,919	$	86,626
Energy	27,431		16,976
Commercial real estate	36,215		14,927
Construction and land development	—		—
Residential and multifamily real estate	6,316		5,230
PPP	—		—
Consumer	243		254
Total average impaired loans	$	112,124	$	124,013

Non-accrual Loans

Non-accrual loans are loans for which the Company does not record interest income. The accrual of interest on loans is discontinued at the time the loan is 90 days past due unless the credit is well secured and in process of collection. Past due status is based on contractual terms of the loan. In all cases, loans are placed on non-accrual or charged off at an earlier date, if collection of principal or interest is considered doubtful.

All interest accrued but not collected for loans that are placed on non-accrual or charged off are reversed against interest income. The interest on these loans is accounted for on the cash basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. The following table presents the Company’s non-accrual loans by loan category at March 31, 2021 and December 31, 2020:



	March 31, 2021		December 31, 2020
	(Dollars in thousands)
Commercial	$	22,070	$	26,691
Energy	27,112		25,927
Commercial real estate	10,821		19,088
Construction and land development	—		—
Residential and multifamily real estate	3,075		3,101
PPP	—		—
Consumer	241		244
Total non-accrual loans	$	63,319	$	75,051

Troubled Debt Restructurings

Restructured loans are those extended to borrowers who are experiencing financial difficulty and who have been granted a concession, excluding loan modifications as a result of the COVID-19 pandemic. The modification of terms typically includes the extension of maturity, reduction or deferment of monthly payment, or reduction of the stated interest rate.

For the three month periods ended March 31, 2021 and 2020, the modifications related to the TDRs below did not impact the ALLL because the loans were previously impaired and evaluated on an individual basis or enough collateral was obtained.

The table below presents loans restructured, excluding loans restructured as a result of the COVID-19 pandemic, during the three months ended March 31, 2021 and 2020, including the post-modification outstanding balance and the type of concession made:


	Three Months Ended
	March 31,		March 31,
	2021		2020
	(Dollars in thousands)
Commercial
- Interest rate reduction	$	—	$	3,171


Energy
- Extension of maturity date	—		2,340










Total troubled debt restructurings	$	—	$	5,511

The balance of restructured loans, excluding loans restructured as a result of the COVID-19 pandemic, is provided below as of March 31, 2021 and December 31, 2020. In addition, the balance of those loans that are in default at any time during the past twelve months at March 31, 2021 and December 31, 2020 is provided below:



	March 31, 2021					December 31, 2020
	Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)		Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)
	(Dollars in thousands)
Commercial	6	$	21,631	$	4,115	7	$	22,759	$	2,776
Energy	4	10,850		2,619		4	11,053		2,713
Commercial real estate	4	25,990		—		4	26,038		—
Construction and land development	—	—		—		—	—		—
Residential and multifamily real estate	2	3,244		—		2	3,245		—
PPP	—	—		—		—	—		—
Consumer	—	—		—		—	—		—
Total troubled debt restructured loans	16	$	61,715	$	6,734	17	$	63,095	$	5,489
(1) Default is considered to mean 90 days or more past due as to interest or principal.

The TDRs above had an allowance of $5 million and $4 million as of March 31, 2021 and December 31, 2020, respectively.

Derivatives and Hedging

3 Months Ended

Mar. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging

Derivatives not designated as hedges are not speculative and result from a service the Company provides to clients. The Company executes interest rate swaps with customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting derivatives that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate derivatives associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings.

As of March 31, 2021 and December 31, 2020, the Company had the following outstanding derivatives that were not designated as hedges in qualifying hedging relationships:



	March 31, 2021			December 31, 2020
Product	Number of Instruments	Notional Amount		Number of Instruments	Notional Amount
	(Dollars in thousands)
Back-to-back swaps	56	$	546,947	56	$	515,567

The table below presents the fair value of the Company’s derivative financial instruments and their classification on the Balance Sheet as of March 31, 2021 and December 31, 2020:


	Asset Derivatives					Liability Derivatives
	Balance Sheet	March 31,		December 31,		Balance Sheet	March 31,		December 31,
	Location	2021		2020		Location	2021		2020
	(Dollars in thousands)
Derivatives not designated as hedging instruments
Interest rate products	Other assets	$	15,561	$	24,094	Other liabilities	$	15,766	$	24,454

The effect of the Company’s derivative financial instruments that are not designated as hedging instruments are reported on the Consolidated Statements of Income as swap fee income, net, which includes swap fees earned upon origination and credit valuation adjustments that represents the risk of a counterparty’s default. The effect of the Company’s derivative financial instruments gain (loss) are reported on the Consolidated Statements of Cash Flows within “other assets” and “other liabilities”.

Time Deposits and Borrowings

3 Months Ended

Mar. 31, 2021

Maturities of Time Deposits [Abstract]

Time Deposits and Borrowings

The scheduled maturities, excluding interest, of the Company’s borrowings at March 31, 2021 were as follows:


	March 31, 2021
	Within One Year		One to Two Years		Two to Three Years		Three to Four Years		Four to Five Years		After Five Years		Total
	(Dollars in thousands)
Time deposits	$	763,848	$	115,321	$	42,981	$	8,193	$	1,411	$	37	$	931,791
Fed funds purchased & repurchase agreements	3,294		—		—		—		—		—		3,294
FHLB borrowings	16,500		11,500		35,000		—		5,100		215,000		283,100

Trust preferred securities(1)	—		—		—		—		—		974		974
	$	783,642	$	126,821	$	77,981	$	8,193	$	6,511	$	216,011	$	1,219,159

(1) The contract value of the trust preferred securities is $2.6 million and is currently being accreted to the maturity date of 2035.

Change in Accumulated Other Comprehensive Income ("AOCI")

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Change in Accumulated Other Comprehensive Income ("AOCI")

Change in Accumulated Other Comprehensive Income (“AOCI”)

Amounts reclassified from AOCI and the affected line items in the Consolidated Statements of Income during the three months ended March 31, 2021 and 2020, were as follows:




	Three Months Ended
	March 31,				Affected Line Item in the
	2021		2020			Statements of Income
	(Dollars in thousands)
Unrealized gains on available-for-sale securities	$	10	$	393		Gain on sale of available-for-sale debt securities

Less: tax effect	2		96			Income tax expense
Net reclassified amount	$	8	$	297

Regulatory Matters

3 Months Ended

Mar. 31, 2021

Banking Regulation, Risk-Based Information [Abstract]

Regulatory Matters

The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Management believes that, as of March 31, 2021, the Company and the Bank met all capital adequacy requirements to which they are subject.

The capital rules require the Company to maintain a 2.5% capital conservation buffer with respect to Common Equity Tier I capital, Tier I capital to risk-weighted assets, and total capital to risk-weighted assets, which is included in the column “Minimum Capital Required - Basel III” within the table below. A financial institution with a conservation buffer of less than the required amount is

subject to limitations on capital distributions, including dividend payments and stock repurchases, as well as certain discretionary bonus payments to executive officers.

The Company’s and the Bank’s actual capital amounts and ratios as of March 31, 2021 and December 31, 2020 are presented in the following table:


	Actual				Minimum Capital Required - Basel III			Required to be Considered Well Capitalized
	Amount		Ratio			Amount		Ratio		Amount		Ratio
	(Dollars in thousands)
March 31, 2021
Total Capital to Risk-Weighted Assets
Consolidated	$	668,393	13.3	%		$	528,882	10.5	%	N/A		N/A
Bank	624,240		12.4			528,704		10.5		$	503,528	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	605,281		12.0			428,143		8.5		N/A		N/A
Bank	561,155		11.1			427,999		8.5		402,822		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	604,307		12.0			352,588		7.0		N/A		N/A
Bank	561,155		11.1			352,470		7.0		327,293		6.5
Tier I Capital to Average Assets
Consolidated	605,281		10.5			230,468		4.0		N/A		N/A
Bank	$	561,155	9.7	%		$	230,354	4.0	%	$	287,942	5.0	%
December 31, 2020
Total Capital to Risk-Weighted Assets
Consolidated	$	656,806	13.1	%		$	527,486	10.5	%	N/A		N/A
Bank	611,533		12.2			527,217		10.5		$	502,111	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	593,865		11.8			427,012		8.5		N/A		N/A
Bank	548,615		10.9			426,794		8.5		401,689		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	592,902		11.8			351,657		7.0		N/A		N/A
Bank	548,615		10.9			351,478		7.0		326,372		6.5
Tier I Capital to Average Assets
Consolidated	593,865		10.8			219,550		4.0		N/A		N/A
Bank	$	548,615	10.0	%		$	219,441	4.0	%	$	274,302	5.0	%

- Definition

The entire disclosure for regulatory capital requirement for depository and lending institutions. Institutions include, but not are not limited to, finance company, insured depository institution, bank holding company, savings and loan association holding company, bank and savings institution not federally insured, mortgage company, foreign financial institution and credit union.

+ References + Details

Stock-Based Compensation

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation

The Company issues stock-based compensation in the form of nonvested restricted stock and stock appreciation rights under the 2018 Omnibus Equity Incentive Plan (“Omnibus Plan”). The Omnibus Plan will expire on the tenth anniversary of its effective date. In addition, the Company has an Employee Stock Purchase Plan that was reinstated during the third quarter of 2020. The aggregate number of shares authorized for future issuance under the Omnibus Plan is 1,831,858 shares as of March 31, 2021.

The table below summarizes the stock-based compensation for the three months ended March 31, 2021 and 2020:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Stock appreciation rights	$	236	$	256
Performance-based stock awards	(266)		74
Restricted stock units and awards	665		604
Employee stock purchase plan	14		—
Total stock-based compensation	$	649	$	934

Performance-Based Stock Awards (“PBSAs”)

The Company awards PBSAs to key officers of the Company. The performance-based shares typically cliff-vest at the end of three years based on attainment of certain performance metrics developed by the Compensation Committee. The ultimate number of shares issuable under each performance award is the product of the award target and the award payout percentage given the level of achievement. The award payout percentages by level of achievement range between 0% of target and 150% of target.

During the three months ended March 31, 2021, the Company granted 63,631 PBSAs. The performance metrics include three year cumulative, adjusted earnings per share and relative total shareholder return.

The following table summarizes the status of and changes in the performance-based awards:


	Performance Based Stock Awards
	Number of Shares	Weighted-Average Grant Date Fair Value
Unvested, January 1, 2021	231,631	$10.51
Granted	63,631	12.89
Vested	0	0.00
Forfeited	0	0.00
Unvested, March 31, 2021	295,262	$11.02

Unrecognized stock-based compensation related to the performance awards issued through March 31, 2021 was $968 thousand and is expected to be recognized over 2.7 years.

Restricted Stock Units (“RSUs”) and Restricted Stock Awards (“RSAs”)

The Company issues RSUs and RSAs to provide incentives to key officers, employees, and nonemployee directors. Awards are typically granted annually as determined by the Compensation Committee. The service-based RSUs typically vest in equal amounts over three years. The service-based RSAs typically cliff-vest after one year.

The following table summarizes the status of and changes in the RSUs and RSAs:


	Restricted Stock Units and Awards
	Number of Shares	Weighted-Average Grant Date Fair Value
Unvested, January 1, 2021	369,217	$12.61
Granted	194,211	12.87
Vested	(109,770)	14.28
Forfeited	0	0.00
Unvested, March 31, 2021	453,658	$12.32

Unrecognized stock-based compensation related to the RSUs and RSAs issued through March 31, 2021 was $4 million and is expected to be recognized over 2.3 years.

Income Tax

3 Months Ended

Mar. 31, 2021

Income Tax Disclosure [Abstract]

Income Tax

An income tax expense reconciliation at the statutory rate to the Company’s actual income tax expense is shown below:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Computed at the statutory rate (21%)	$	3,138	$	872
Increase (decrease) resulting from
Tax-exempt income	(790)		(790)
Nondeductible expenses	50		64

State income taxes	496		142
Equity based compensation	14		26

Other adjustments	—		(21)
Actual tax expense	$	2,908	$	293

The tax effects of temporary differences related to deferred taxes shown on the Consolidated Balance Sheets are presented below:



	March 31, 2021		December 31, 2020
	(Dollars in thousands)
Deferred tax assets

Allowance for loan losses	$	17,944	$	18,124
Lease incentive	550		564


Loan fees	3,453		3,178

Accrued expenses	874		2,128
Deferred compensation	2,197		2,474

State tax credit	2,447		2,621
Other	452		946
Total deferred tax asset	27,917		30,035
Deferred tax liability

Net unrealized gain on securities available-for-sale	(7,308)		(9,531)
FHLB stock basis	(1,248)		(1,209)
Premises and equipment	(2,703)		(2,881)
Other	(1,446)		(1,601)
Total deferred tax liability	(12,705)		(15,222)
Net deferred tax asset	$	15,212	$	14,813

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Disclosures about Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Disclosures about Fair Value of Financial Instruments

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements must maximize the use of observable inputs and minimize the use of unobservable inputs. There is a hierarchy of three levels of inputs that may be used to measure fair value:

Level 1 Quoted prices in active markets for identical assets or liabilities.

Level 2 Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3 Unobservable inputs supported by little or no market activity and significant to the fair value of the assets or liabilities.

Recurring Measurements

The following list presents the assets and liabilities recognized in the accompanying Consolidated Balance Sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall at March 31, 2021 and December 31, 2020:

Fair Value Description

Valuation Hierarchy Level

Where Fair Value Balance Can Be Found

Available-for-Sale Securities

Where quoted market prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. If quoted market prices are not available, then fair values are estimated by using quoted prices of securities with similar characteristics or independent asset pricing services and pricing models, the inputs of which are market-based or independently sourced market parameters, including, but not limited to, yield curves, interest rates, volatilities, prepayments, defaults, cumulative loss projections and cash flows.

Level 2

Note 3: Securities

Derivatives

Fair value of the interest rate swaps is obtained from independent pricing services based on quoted market prices for similar derivative contracts.

Level 2

Note 5: Derivatives and Hedging

Nonrecurring Measurements

The following tables present assets measured at fair value on a nonrecurring basis and the level within the fair value hierarchy in which the fair value measurements fall at March 31, 2021 and December 31, 2020:


			March 31, 2021
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	46,940	$	—	$	—	$	46,940


			December 31, 2020
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	55,454	$	—	$	—	$	55,454

Foreclosed assets held-for-sale	$	2,347	$	—	$	—	$	2,347

Following is a description of the valuation methodologies and inputs used for assets measured at fair value on a nonrecurring basis and recognized in the accompanying Consolidated Balance Sheets.

Collateral-dependent Impaired Loans, Net of ALLL

The estimated fair value of collateral-dependent impaired loans is based on the appraised fair value of the collateral, less estimated cost to sell. Collateral-dependent impaired loans are classified within Level 3 of the fair value hierarchy.

The Company considers the appraisal or evaluation as the starting point for determining fair value and then considers other factors and events in the environment that may affect the fair value. Appraisals of the collateral underlying collateral-dependent loans are obtained when the loan is determined to be collateral-dependent and subsequently as deemed necessary by the Office of the Chief Credit Officer.

Appraisals are reviewed for accuracy and consistency by the Office of the Chief Credit Officer. Appraisers are selected from the list of approved appraisers maintained by management. The appraised values are reduced by discounts to consider lack of marketability and estimated cost to sell if repayment or satisfaction of the loan is dependent on the sale of the collateral. These discounts and estimates are developed by the Office of the Chief Credit Officer by comparison to historical results.

Foreclosed Assets Held-for-Sale

The fair value of foreclosed assets-held-for-sale is based on the appraised fair value of the collateral, less estimated cost to sell.

Unobservable (Level 3) Inputs

The following tables present quantitative information about unobservable inputs used in nonrecurring Level 3 fair value measurements at March 31, 2021 and December 31, 2020:

March 31, 2021

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral-dependent impaired loans

46,940

Market comparable properties

Marketability discount

10% - 98%

(27%)

December 31, 2020

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral-dependent impaired loans

55,454

Market comparable properties

Marketability discount

1% - 98%

(24%)

Foreclosed assets held-for-sale

2,347

Market comparable properties

Marketability discount

7% - 10%

(9%)

The following tables present the estimated fair values of the Company’s financial instruments at March 31, 2021 and December 31, 2020:


	March 31, 2021
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	630,787	$	630,787	$	—	$	—	$	630,787
Available-for-sale securities	685,454		—		685,454		—		685,454
Loans, net of allowance for loan losses	4,434,049		—		—		4,419,714		4,419,714
Restricted equity securities	14,080		—		—		14,080		14,080
Interest receivable	17,987		—		17,987		—		17,987
Equity securities	13,405		—		2,216		11,189		13,405
Derivative assets	15,561		—		15,561		—		15,561
	$	5,811,323	$	630,787	$	721,218	$	4,444,983	$	5,796,988
Financial Liabilities
Deposits	$	5,051,570	$	794,559	$	—	$	4,289,169	$	5,083,728
Federal funds purchased and repurchase agreements	3,294		—		3,294		—		3,294
Federal Home Loan Bank advances	283,100		—		292,667		—		292,667
Other borrowings	974		—		2,235		—		2,235
Interest payable	1,911		—		1,911		—		1,911
Derivative liabilities	15,766		—		15,766		—		15,766
	$	5,356,615	$	794,559	$	315,873	$	4,289,169	$	5,399,601


	December 31, 2020
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	408,810	$	408,810	$	—	$	—	$	408,810
Available-for-sale securities	654,588		—		654,588		—		654,588
Loans, net of allowance for loan losses	4,366,602		—		—		4,351,970		4,351,970
Restricted equity securities	15,543		—		—		15,543		15,543
Interest receivable	17,236		—		17,236		—		17,236
Equity securities	13,436		—		2,247		11,189		13,436
Derivative assets	24,094		—		24,094		—		24,094
	$	5,500,309	$	408,810	$	698,165	$	4,378,702	$	5,485,677
Financial Liabilities
Deposits	$	4,694,740	$	718,459	$	—	$	4,015,792	$	4,734,251
Federal funds purchased and repurchase agreements	2,306		—		2,306		—		2,306
Federal Home Loan Bank advances	293,100		—		309,020		—		309,020
Other borrowings	963		—		2,024		—		2,024
Interest payable	2,163		—		2,163		—		2,163
Derivative liabilities	24,454		—		24,454		—		24,454
	$	5,017,726	$	718,459	$	339,967	$	4,015,792	$	5,074,218

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Commitments and Credit Risk

3 Months Ended

Mar. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and Credit Risk

Commitments

The Company had the following commitments at March 31, 2021 and December 31, 2020:


	March 31, 2021		December 31, 2020
	(Dollars in thousands)
Commitments to originate loans	$	112,738	$	99,596
Standby letters of credit	41,256		48,607
Lines of credit	1,401,710		1,423,038

Total	$	1,555,704	$	1,571,241

Legal and Regulatory Proceedings	3 Months Ended
Legal and Regulatory Proceedings	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Legal and Regulatory Proceedings	Legal and Regulatory Proceedings General Litigation The Company is subject to claims and lawsuits that arise primarily in the ordinary course of business. It is the opinion of management the disposition or ultimate resolution of such claims and lawsuits will not have a material adverse effect on the consolidated financial position, results of operations and cash flows of the Company.

Nature of Operations and Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Basis of Presentation

Use of Estimates

Cash Equivalents

Cash EquivalentsThe Company had $541 million of cash and cash equivalents at the Federal Reserve Bank of Kansas City as of March 31, 2021. The reserve required at March 31, 2021 was $0.

Impaired Loans

Recent Accounting Pronouncements

The following table provides information about Accounting Standard Updates (“ASUs”) the Company anticipates to adopt in the future:

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-13

Financial Instruments-Credit Losses

If the Company maintains its EGC status, the Company is not required to implement this standard until January 2023. The Company anticipates an adoption date of January 2022.

ASU 2016-02

Leases (Topic 842)

Changes Affecting Comparability

Allowance for Loan Losses

Non-accrual Loans

Troubled Debt Restructurings

Troubled Debt RestructuringsRestructured loans are those extended to borrowers who are experiencing financial difficulty and who have been granted a concession, excluding loan modifications as a result of the COVID-19 pandemic. The modification of terms typically includes the extension of maturity, reduction or deferment of monthly payment, or reduction of the stated interest rate.

Fair Value Measurement

Level 1 Quoted prices in active markets for identical assets or liabilities.

Level 3 Unobservable inputs supported by little or no market activity and significant to the fair value of the assets or liabilities.

Collateral-dependent Impaired Loans, Net of ALLL

Foreclosed Assets Held-for-Sale

The fair value of foreclosed assets-held-for-sale is based on the appraised fair value of the collateral, less estimated cost to sell.

Nature of Operations and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Schedule of Accounting Pronouncements Adopted and Not Yet Adopted

The following table provides information about Accounting Standard Updates (“ASUs”) the Company anticipates to adopt in the future:

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-13

Financial Instruments-Credit Losses

If the Company maintains its EGC status, the Company is not required to implement this standard until January 2023. The Company anticipates an adoption date of January 2022.

ASU 2016-02

Leases (Topic 842)

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Schedule of Earnings (Loss) Per Share, Basic and Diluted

The following table presents the computation of basic and diluted earnings per share:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands except per share data)
Earnings per Share


Net income available to common stockholders	$	12,035	$	3,857
Weighted average common shares	51,657,204		52,071,484
Earnings per share	$	0.23	$	0.07
Dilutive Earnings Per Share


Net income available to common stockholders	$	12,035	$	3,857
Weighted average common shares	51,657,204		52,071,484
Effect of dilutive shares	724,270		588,786
Weighted average dilutive common shares	52,381,474		52,660,270
Diluted earnings per share	$	0.23	$	0.07

Stock-based awards not included because to do so would be antidilutive	669,112		905,406

Securities (Tables)

3 Months Ended

Mar. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The amortized cost and approximate fair values, together with gross unrealized gains and losses, of period end available-for-sale securities consisted of the following:


	March 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	138,231	$	2,912	$	1,464	$	139,679
Collateralized mortgage obligations - GSE residential	38,206		785		26		38,965
State and political subdivisions	474,912		28,517		862		502,567
Corporate bonds	4,251		74		82		4,243
Total available-for-sale securities	$	655,600	$	32,288	$	2,434	$	685,454


	December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	104,839	$	4,277	$	—	$	109,116
Collateralized mortgage obligations - GSE residential	52,070		984		42		53,012
State and political subdivisions	454,486		33,642		31		488,097
Corporate bonds	4,259		104		—		4,363
Total available-for-sale securities	$	615,654	$	39,007	$	73	$	654,588

Investments Classified by Contractual Maturity Date

The amortized cost and fair value of available-for-sale securities at March 31, 2021, by contractual maturity, are shown below:


	March 31, 2021
	Within			After One to			After Five to			After
	One Year			Five Years			Ten Years			Ten Years			Total
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential(1)
Amortized cost	$	—		$	48		$	181		$	138,002		$	138,231
Estimated fair value	$	—		$	50		$	193		$	139,436		$	139,679
Weighted average yield(2)	—		%	4.60		%	3.91		%	1.72		%	1.72		%
Collateralized mortgage obligations - GSE residential(1)
Amortized cost	$	—		$	—		$	2,469		$	35,737		$	38,206
Estimated fair value	$	—		$	—		$	2,645		$	36,320		$	38,965
Weighted average yield(2)	—		%	—		%	2.75		%	1.59		%	1.66		%
State and political subdivisions
Amortized cost	$	652		$	5,947		$	65,518		$	402,795		$	474,912
Estimated fair value	$	654		$	6,024		$	70,889		$	425,000		$	502,567
Weighted average yield(2)	3.54		%	3.86		%	3.32		%	2.82		%	2.90		%
Corporate bonds
Amortized cost	$	—		$	357		$	3,894		$	—		$	4,251
Estimated fair value	$	—		$	366		$	3,877		$	—		$	4,243
Weighted average yield(2)	—		%	4.10		%	4.54		%	—		%	4.51		%
Total available-for-sale securities
Amortized cost	$	652		$	6,352		$	72,062		$	576,534		$	655,600
Estimated fair value	$	654		$	6,440		$	77,604		$	600,756		$	685,454
Weighted average yield(2)	3.54		%	3.88		%	3.37		%	2.48		%	2.59		%
(1) Actual maturities may differ from contractual maturities because issuers may have the rights to call or prepay obligations with or without prepayment penalties.
(2) Yields are calculated based on amortized cost.

Schedule of Unrealized Loss on Investments


	March 31, 2021
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	55,185	$	1,464	8	$	—	$	—	—	$	55,185	$	1,464	8
Collateralized mortgage obligations - GSE residential	7,591		26		6	—		—		—	7,591		26		6
State and political subdivisions	44,008		861		32	24		1		1	44,032		862		33
Corporate bonds	3,418		82		1	—		—		—	3,418		82		1
Total temporarily impaired securities	$	110,202	$	2,433	47	$	24	$	1	1	$	110,226	$	2,434	48


	December 31, 2020
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	—	$	—	—	$	—	$	—	—	$	—	$	—	—
Collateralized mortgage obligations - GSE residential	9,933		42		5	—		—		—	9,933		42		5
State and political subdivisions	8,525		31		8	25		—		1	8,550		31		9
Corporate bonds	—		—		—	—		—		—	—		—		—
Total temporarily impaired securities	$	18,458	$	73	13	$	25	$	—	1	$	18,483	$	73	14

Gain (Loss) on Securities

The following is a summary of the unrealized and realized gains and losses recognized in net income on equity securities:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Net gains (losses) recognized during the reporting period on equity securities	$	(39)	$	34
Less: net gains recognized during the reporting period on equity securities sold during the reporting period	—		—
Unrealized gain (losses) recognized during the reporting period on equity securities still held at the reporting date	$	(39)	$	34

Loans and Allowance for Loan Losses ("ALLL") (Tables)

3 Months Ended

Mar. 31, 2021

Receivables [Abstract]

Category of Loans

Categories of loans at March 31, 2021 and December 31, 2020 include:


	March 31, 2021		December 31, 2020

	(Dollars in thousands)
Commercial	$	1,284,047	$	1,338,757
Energy	342,899		345,233
Commercial real estate	1,191,634		1,179,534
Construction and land development	617,200		563,144
Residential and multifamily real estate	687,893		680,932
Paycheck Protection Program (“PPP”)	336,355		292,230


Consumer	62,917		55,270
Gross loans	4,522,945		4,455,100
Less: Allowance for loan losses	74,551		75,295
Less: Net deferred loan fees and costs	14,345		13,203
Net loans	$	4,434,049	$	4,366,602

Loans, Allowance for Loan Loss


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended March 31, 2021
Allowance for loan losses
Beginning balance	$	24,693	$	18,341	$	22,354	$	3,612	$	5,842	$	—	$	453	$	75,295
Provision charged to expense	7,015		1,951		(1,745)		225		214		—		(160)		7,500
Charge-offs	(8,266)		—		—		—		—		—		—		(8,266)
Recoveries	22		—		—		—		—		—		—		22
Ending balance	$	23,464	$	20,292	$	20,609	$	3,837	$	6,056	$	—	$	293	$	74,551


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Three months ended March 31, 2020
Allowance for loan losses
Beginning balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Provision charged to expense	3,271		2,313		4,538		1,505		2,141		—		182		13,950
Charge-offs	(18,077)		(1,279)		—		—		—		—		(104)		(19,460)
Recoveries	71		—		—		—		—		—		1		72
Ending balance	$	21,129	$	7,599	$	12,623	$	5,021	$	4,687	$	—	$	399	$	51,458


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
March 31, 2021
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	832	$	4,938	$	2,990	$	—	$	—	$	—	$	—	$	8,760
Collectively evaluated for impairment	$	22,632	$	15,354	$	17,619	$	3,837	$	6,056	$	—	$	293	$	65,791
Ending balance	$	23,464	$	20,292	$	20,609	$	3,837	$	6,056	$	—	$	293	$	74,551

Allocated to loans:
Individually evaluated for impairment	$	39,287	$	27,215	$	36,028	$	—	$	6,302	$	—	$	241	$	109,073
Collectively evaluated for impairment	$	1,244,760	$	315,684	$	1,155,606	$	617,200	$	681,591	$	336,355	$	62,676	$	4,413,872
Ending balance	$	1,284,047	$	342,899	$	1,191,634	$	617,200	$	687,893	$	336,355	$	62,917	$	4,522,945


	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
December 31, 2020
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$	1,115	$	3,370	$	5,048	$	—	$	—	$	—	$	—	$	9,533
Collectively evaluated for impairment	$	23,578	$	14,971	$	17,306	$	3,612	$	5,842	$	—	$	453	$	65,762
Ending balance	$	24,693	$	18,341	$	22,354	$	3,612	$	5,842	$	—	$	453	$	75,295
Allocated to loans:
Individually evaluated for impairment	$	44,678	26,045		$	44,318	$	—	$	6,329	$	—	$	244	$	121,614
Collectively evaluated for impairment	$	1,294,079	$	319,188	$	1,135,216	$	563,144	$	674,603	$	292,230	$	55,026	$	4,333,486
Ending balance	$	1,338,757	$	345,233	$	1,179,534	$	563,144	$	680,932	$	292,230	$	55,270	$	4,455,100

Loans, Credit Quality Indicators

The following tables present the credit risk profile of the Company’s loan portfolio based on internal rating categories (grades 1 - 8), portfolio segmentation, and payment activity:



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
March 31, 2021
Commercial	$	1,171,818	$	43,247	$	46,912	$	20,409	$	1,661	$	—	$	1,284,047
Energy	141,441		82,314		92,032		23,421		3,691		—		342,899
Commercial real estate	1,054,675		66,101		60,037		10,821		—		—		1,191,634
Construction and land development	616,061		—		1,139		—		—		—		617,200
Residential and multifamily real estate	679,335		43		5,440		3,075		—		—		687,893
PPP	336,355		—		—		—		—		—		336,355


Consumer	62,676		—		—		241		—		—		62,917
	$	4,062,361	$	191,705	$	205,560	$	57,967	$	5,352	$	—	$	4,522,945



	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
December 31, 2020
Commercial	$	1,182,519	$	66,142	$	63,407	$	26,124	$	565	$	—	$	1,338,757
Energy	145,598		90,134		83,574		22,177		3,750		—		345,233
Commercial real estate	1,035,056		67,710		57,680		19,088		—		—		1,179,534
Construction and land development	561,871		125		1,148		—		—		—		563,144
Residential and multifamily real estate	672,327		305		5,199		3,101		—		—		680,932
PPP	292,230		—		—		—		—		—		292,230


Consumer	55,026		—		—		244		—		—		55,270
	$	3,944,627	$	224,416	$	211,008	$	70,734	$	4,315	$	—	$	4,455,100

Loans, Past Due

The following tables present the Company’s loan portfolio aging analysis as of March 31, 2021 and December 31, 2020:


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
March 31, 2021
Commercial	$	7,813	$	403	$	15,709	$	23,925	$	1,260,122	$	1,284,047	$	—
Energy	748		—		6,741		7,489		335,410		342,899		—
Commercial real estate	—		—		4,097		4,097		1,187,537		1,191,634		—
Construction and land development	862		—		—		862		616,338		617,200		—
Residential and multifamily real estate	1,160		—		6,028		7,188		680,705		687,893		3,183
PPP	—		—		—		—		336,355		336,355		—


Consumer	—		—		—		—		62,917		62,917		—
	$	10,583	$	403	$	32,575	$	43,561	$	4,479,384	$	4,522,945	$	3,183


	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
December 31, 2020
Commercial	$	8,497	$	264	$	11,236	$	19,997	$	1,318,760	$	1,338,757	$	—
Energy	—		—		7,173		7,173		338,060		345,233		372
Commercial real estate	63		7,677		4,825		12,565		1,166,969		1,179,534		—
Construction and land development	—		—		—		—		563,144		563,144		—
Residential and multifamily real estate	1,577		—		3,520		5,097		675,835		680,932		652
PPP	—		—		—		—		292,230		292,230		—
Consumer	—		—		—		—		55,270		55,270		—
	$	10,137	$	7,941	$	26,754	$	44,832	$	4,410,268	$	4,455,100	$	1,024

Loans, Impaired

The following tables present loans individually evaluated for impairment, including all restructured and formerly restructured loans, for the periods ended March 31, 2021 and December 31, 2020:


			Unpaid
	Recorded Balance		Principal Balance		Specific Allowance
	(Dollars in thousands)
March 31, 2021
Loans without a specific valuation
Commercial	$	36,174	$	38,124	$	—
Energy	103		103		—
Commercial real estate	10,553		12,138		—
Construction and land development	—		—		—
Residential and multifamily real estate	6,302		6,558		—
PPP	—		—		—


Consumer	241		241		—
Loans with a specific valuation
Commercial	3,113		15,297		832
Energy	27,112		35,204		4,938
Commercial real estate	25,475		25,475		2,990
Construction and land development	—		—		—
Residential and multifamily real estate	—		—		—
PPP	—		—		—


Consumer	—		—		—


Total
Commercial	39,287		53,421		832
Energy	27,215		35,307		4,938
Commercial real estate	36,028		37,613		2,990
Construction and land development	—		—		—
Residential and multifamily real estate	6,302		6,558		—
PPP	—		—		—


Consumer	241		241		—
	$	109,073	$	133,140	$	8,760


			Unpaid
	Recorded Balance		Principal Balance		Specific Allowance
	(Dollars in thousands)
December 31, 2020
Loans without a specific valuation
Commercial	$	36,111	$	50,245	$	—
Energy	3,864		6,677		—
Commercial real estate	10,079		11,663		—
Construction and land development	—		—		—
Residential and multifamily real estate	6,329		6,585		—
PPP	—		—		—
Consumer	244		244		—
Loans with a specific valuation
Commercial	8,567		8,567		1,115
Energy	22,181		27,460		3,370
Commercial real estate	34,239		34,239		5,048
Construction and land development	—		—		—
Residential and multifamily real estate	—		—		—
PPP	—		—		—
Consumer	—		—		—

Total
Commercial	44,678		58,812		1,115
Energy	26,045		34,137		3,370
Commercial real estate	44,318		45,902		5,048
Construction and land development	—		—		—
Residential and multifamily real estate	6,329		6,585		—
PPP	—		—		—
Consumer	244		244		—
	$	121,614	$	145,680	$	9,533


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Commercial	$	303	$	910
Energy	16		122
Commercial real estate	287		123
Construction and land development	—		—
Residential and multifamily real estate	36		40
PPP	—		—


Consumer	—		—
Total interest income recognized	$	642	$	1,195


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Commercial	$	41,919	$	86,626
Energy	27,431		16,976
Commercial real estate	36,215		14,927
Construction and land development	—		—
Residential and multifamily real estate	6,316		5,230
PPP	—		—
Consumer	243		254
Total average impaired loans	$	112,124	$	124,013

Loans, Nonaccrual

The following table presents the Company’s non-accrual loans by loan category at March 31, 2021 and December 31, 2020:



	March 31, 2021		December 31, 2020
	(Dollars in thousands)
Commercial	$	22,070	$	26,691
Energy	27,112		25,927
Commercial real estate	10,821		19,088
Construction and land development	—		—
Residential and multifamily real estate	3,075		3,101
PPP	—		—
Consumer	241		244
Total non-accrual loans	$	63,319	$	75,051

Loans, Troubled Debt Restructuring


	Three Months Ended
	March 31,		March 31,
	2021		2020
	(Dollars in thousands)
Commercial
- Interest rate reduction	$	—	$	3,171


Energy
- Extension of maturity date	—		2,340










Total troubled debt restructurings	$	—	$	5,511

In addition, the balance of those loans that are in default at any time during the past twelve months at March 31, 2021 and December 31, 2020 is provided below:



	March 31, 2021					December 31, 2020
	Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)		Number of Loans	Outstanding Balance		Balance 90 days past due at any time during previous 12 months(1)
	(Dollars in thousands)
Commercial	6	$	21,631	$	4,115	7	$	22,759	$	2,776
Energy	4	10,850		2,619		4	11,053		2,713
Commercial real estate	4	25,990		—		4	26,038		—
Construction and land development	—	—		—		—	—		—
Residential and multifamily real estate	2	3,244		—		2	3,245		—
PPP	—	—		—		—	—		—
Consumer	—	—		—		—	—		—
Total troubled debt restructured loans	16	$	61,715	$	6,734	17	$	63,095	$	5,489
(1) Default is considered to mean 90 days or more past due as to interest or principal.

Derivatives and Hedging (Tables)

3 Months Ended

Mar. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments

As of March 31, 2021 and December 31, 2020, the Company had the following outstanding derivatives that were not designated as hedges in qualifying hedging relationships:



	March 31, 2021			December 31, 2020
Product	Number of Instruments	Notional Amount		Number of Instruments	Notional Amount
	(Dollars in thousands)
Back-to-back swaps	56	$	546,947	56	$	515,567

The table below presents the fair value of the Company’s derivative financial instruments and their classification on the Balance Sheet as of March 31, 2021 and December 31, 2020:


	Asset Derivatives					Liability Derivatives
	Balance Sheet	March 31,		December 31,		Balance Sheet	March 31,		December 31,
	Location	2021		2020		Location	2021		2020
	(Dollars in thousands)
Derivatives not designated as hedging instruments
Interest rate products	Other assets	$	15,561	$	24,094	Other liabilities	$	15,766	$	24,454

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41620-113959

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41638-113959

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41678-113959

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41641-113959

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579240-113959

+ Details

Time Deposits and Borrowings (Tables)

3 Months Ended

Mar. 31, 2021

Maturities of Time Deposits [Abstract]

Schedule of Time Deposit Maturities and Borrowings

The scheduled maturities, excluding interest, of the Company’s borrowings at March 31, 2021 were as follows:


	March 31, 2021
	Within One Year		One to Two Years		Two to Three Years		Three to Four Years		Four to Five Years		After Five Years		Total
	(Dollars in thousands)
Time deposits	$	763,848	$	115,321	$	42,981	$	8,193	$	1,411	$	37	$	931,791
Fed funds purchased & repurchase agreements	3,294		—		—		—		—		—		3,294
FHLB borrowings	16,500		11,500		35,000		—		5,100		215,000		283,100

Trust preferred securities(1)	—		—		—		—		—		974		974
	$	783,642	$	126,821	$	77,981	$	8,193	$	6,511	$	216,011	$	1,219,159

(1) The contract value of the trust preferred securities is $2.6 million and is currently being accreted to the maturity date of 2035.

Change in Accumulated Other Comprehensive Income (AOCI) (Tables)

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income

Amounts reclassified from AOCI and the affected line items in the Consolidated Statements of Income during the three months ended March 31, 2021 and 2020, were as follows:




	Three Months Ended
	March 31,				Affected Line Item in the
	2021		2020			Statements of Income
	(Dollars in thousands)
Unrealized gains on available-for-sale securities	$	10	$	393		Gain on sale of available-for-sale debt securities

Less: tax effect	2		96			Income tax expense
Net reclassified amount	$	8	$	297

Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2021

Banking Regulation, Risk-Based Information [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The Company’s and the Bank’s actual capital amounts and ratios as of March 31, 2021 and December 31, 2020 are presented in the following table:


	Actual				Minimum Capital Required - Basel III			Required to be Considered Well Capitalized
	Amount		Ratio			Amount		Ratio		Amount		Ratio
	(Dollars in thousands)
March 31, 2021
Total Capital to Risk-Weighted Assets
Consolidated	$	668,393	13.3	%		$	528,882	10.5	%	N/A		N/A
Bank	624,240		12.4			528,704		10.5		$	503,528	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	605,281		12.0			428,143		8.5		N/A		N/A
Bank	561,155		11.1			427,999		8.5		402,822		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	604,307		12.0			352,588		7.0		N/A		N/A
Bank	561,155		11.1			352,470		7.0		327,293		6.5
Tier I Capital to Average Assets
Consolidated	605,281		10.5			230,468		4.0		N/A		N/A
Bank	$	561,155	9.7	%		$	230,354	4.0	%	$	287,942	5.0	%
December 31, 2020
Total Capital to Risk-Weighted Assets
Consolidated	$	656,806	13.1	%		$	527,486	10.5	%	N/A		N/A
Bank	611,533		12.2			527,217		10.5		$	502,111	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	593,865		11.8			427,012		8.5		N/A		N/A
Bank	548,615		10.9			426,794		8.5		401,689		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	592,902		11.8			351,657		7.0		N/A		N/A
Bank	548,615		10.9			351,478		7.0		326,372		6.5
Tier I Capital to Average Assets
Consolidated	593,865		10.8			219,550		4.0		N/A		N/A
Bank	$	548,615	10.0	%		$	219,441	4.0	%	$	274,302	5.0	%

Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Stock-based Compensation

The table below summarizes the stock-based compensation for the three months ended March 31, 2021 and 2020:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Stock appreciation rights	$	236	$	256
Performance-based stock awards	(266)		74
Restricted stock units and awards	665		604
Employee stock purchase plan	14		—
Total stock-based compensation	$	649	$	934

Summary of Status and Changes in Performance-Based Awards

The following table summarizes the status of and changes in the performance-based awards:


	Performance Based Stock Awards
	Number of Shares	Weighted-Average Grant Date Fair Value
Unvested, January 1, 2021	231,631	$10.51
Granted	63,631	12.89
Vested	0	0.00
Forfeited	0	0.00
Unvested, March 31, 2021	295,262	$11.02

Summary of Status and Changes in RSUs and RSAs

The following table summarizes the status of and changes in the RSUs and RSAs:


	Restricted Stock Units and Awards
	Number of Shares	Weighted-Average Grant Date Fair Value
Unvested, January 1, 2021	369,217	$12.61
Granted	194,211	12.87
Vested	(109,770)	14.28
Forfeited	0	0.00
Unvested, March 31, 2021	453,658	$12.32

Income Tax (Tables)

3 Months Ended

Mar. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

An income tax expense reconciliation at the statutory rate to the Company’s actual income tax expense is shown below:


	Three Months Ended
	March 31,
	2021		2020
	(Dollars in thousands)
Computed at the statutory rate (21%)	$	3,138	$	872
Increase (decrease) resulting from
Tax-exempt income	(790)		(790)
Nondeductible expenses	50		64

State income taxes	496		142
Equity based compensation	14		26

Other adjustments	—		(21)
Actual tax expense	$	2,908	$	293

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences related to deferred taxes shown on the Consolidated Balance Sheets are presented below:



	March 31, 2021		December 31, 2020
	(Dollars in thousands)
Deferred tax assets

Allowance for loan losses	$	17,944	$	18,124
Lease incentive	550		564


Loan fees	3,453		3,178

Accrued expenses	874		2,128
Deferred compensation	2,197		2,474

State tax credit	2,447		2,621
Other	452		946
Total deferred tax asset	27,917		30,035
Deferred tax liability

Net unrealized gain on securities available-for-sale	(7,308)		(9,531)
FHLB stock basis	(1,248)		(1,209)
Premises and equipment	(2,703)		(2,881)
Other	(1,446)		(1,601)
Total deferred tax liability	(12,705)		(15,222)
Net deferred tax asset	$	15,212	$	14,813

Disclosures about Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Fair Value Description

Valuation Hierarchy Level

Where Fair Value Balance Can Be Found

Available-for-Sale Securities

Level 2

Note 3: Securities

Derivatives

Fair value of the interest rate swaps is obtained from independent pricing services based on quoted market prices for similar derivative contracts.

Level 2

Note 5: Derivatives and Hedging

Fair Value Measurements, Nonrecurring


			March 31, 2021
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	46,940	$	—	$	—	$	46,940


			December 31, 2020
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	55,454	$	—	$	—	$	55,454

Foreclosed assets held-for-sale	$	2,347	$	—	$	—	$	2,347

Fair Value, Assets Measured on Nonrecurring Basis, Unobservable Input Reconciliation

The following tables present quantitative information about unobservable inputs used in nonrecurring Level 3 fair value measurements at March 31, 2021 and December 31, 2020:

March 31, 2021

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral-dependent impaired loans

46,940

Market comparable properties

Marketability discount

10% - 98%

(27%)

December 31, 2020

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral-dependent impaired loans

55,454

Market comparable properties

Marketability discount

1% - 98%

(24%)

Foreclosed assets held-for-sale

2,347

Market comparable properties

Marketability discount

7% - 10%

(9%)

Fair Value, by Balance Sheet Grouping

The following tables present the estimated fair values of the Company’s financial instruments at March 31, 2021 and December 31, 2020:


	March 31, 2021
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	630,787	$	630,787	$	—	$	—	$	630,787
Available-for-sale securities	685,454		—		685,454		—		685,454
Loans, net of allowance for loan losses	4,434,049		—		—		4,419,714		4,419,714
Restricted equity securities	14,080		—		—		14,080		14,080
Interest receivable	17,987		—		17,987		—		17,987
Equity securities	13,405		—		2,216		11,189		13,405
Derivative assets	15,561		—		15,561		—		15,561
	$	5,811,323	$	630,787	$	721,218	$	4,444,983	$	5,796,988
Financial Liabilities
Deposits	$	5,051,570	$	794,559	$	—	$	4,289,169	$	5,083,728
Federal funds purchased and repurchase agreements	3,294		—		3,294		—		3,294
Federal Home Loan Bank advances	283,100		—		292,667		—		292,667
Other borrowings	974		—		2,235		—		2,235
Interest payable	1,911		—		1,911		—		1,911
Derivative liabilities	15,766		—		15,766		—		15,766
	$	5,356,615	$	794,559	$	315,873	$	4,289,169	$	5,399,601


	December 31, 2020
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	408,810	$	408,810	$	—	$	—	$	408,810
Available-for-sale securities	654,588		—		654,588		—		654,588
Loans, net of allowance for loan losses	4,366,602		—		—		4,351,970		4,351,970
Restricted equity securities	15,543		—		—		15,543		15,543
Interest receivable	17,236		—		17,236		—		17,236
Equity securities	13,436		—		2,247		11,189		13,436
Derivative assets	24,094		—		24,094		—		24,094
	$	5,500,309	$	408,810	$	698,165	$	4,378,702	$	5,485,677
Financial Liabilities
Deposits	$	4,694,740	$	718,459	$	—	$	4,015,792	$	4,734,251
Federal funds purchased and repurchase agreements	2,306		—		2,306		—		2,306
Federal Home Loan Bank advances	293,100		—		309,020		—		309,020
Other borrowings	963		—		2,024		—		2,024
Interest payable	2,163		—		2,163		—		2,163
Derivative liabilities	24,454		—		24,454		—		24,454
	$	5,017,726	$	718,459	$	339,967	$	4,015,792	$	5,074,218

Commitments and Credit Risk (Tables)

3 Months Ended

Mar. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

Schedule of Commitments

The Company had the following commitments at March 31, 2021 and December 31, 2020:


	March 31, 2021		December 31, 2020
	(Dollars in thousands)
Commitments to originate loans	$	112,738	$	99,596
Standby letters of credit	41,256		48,607
Lines of credit	1,401,710		1,423,038

Total	$	1,555,704	$	1,571,241

Nature of Operations and Summary of Significant Accounting Policies (Details)	Mar. 31, 2021 USD ($)
Accounting Policies [Abstract]
Cash and cash equivalents held at the Federal Reserve Bank of Kansas City	$ 541,000,000
Required reserve	$ 0

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings per Share
Net income available to common stockholders	$ 12,035	$ 3,857
Weighted average common shares (in shares)	51,657,204	52,071,484
Earnings per share (in dollars per share)	$ 0.23	$ 0.07
Dilutive Earnings Per Share
Net income available to common stockholders	$ 12,035	$ 3,857
Weighted average common shares (in shares)	51,657,204	52,071,484
Effect of dilutive shares (in shares)	724,270	588,786
Weighted average dilutive common shares (in shares)	52,381,474	52,660,270
Diluted earnings per share (in dollars per share)	$ 0.23	$ 0.07
Stock-based awards not included because to do so would be antidilutive (in shares)	669,112	905,406

Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Available-for-sale securities
Total	$ 655,600	$ 615,654
Gross Unrealized Gains	32,288	39,007
Gross Unrealized Losses	2,434	73
Approximate Fair Value	685,454	654,588
Mortgage-backed - GSE residential
Available-for-sale securities
Total	138,231	104,839
Gross Unrealized Gains	2,912	4,277
Gross Unrealized Losses	1,464	0
Approximate Fair Value	139,679	109,116
Collateralized mortgage obligations - GSE residential
Available-for-sale securities
Total	38,206	52,070
Gross Unrealized Gains	785	984
Gross Unrealized Losses	26	42
Approximate Fair Value	38,965	53,012
State and political subdivisions
Available-for-sale securities
Total	474,912	454,486
Gross Unrealized Gains	28,517	33,642
Gross Unrealized Losses	862	31
Approximate Fair Value	502,567	488,097
Corporate bonds
Available-for-sale securities
Total	4,251	4,259
Gross Unrealized Gains	74	104
Gross Unrealized Losses	82	0
Approximate Fair Value	$ 4,243	$ 4,363

Securities - Amortized Cost and Fair Value by Maturity Date (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Amortized cost
Within one year	$ 652
After one to five years	6,352
After five to ten years	72,062
After ten years	576,534
Total	655,600	$ 615,654
Estimated fair value
Within one year	654
After one to five years	6,440
After five to ten years	77,604
After ten years	600,756
Total	$ 685,454	654,588
Weighted average yield
Within one year	3.54%
After one to five years	3.88%
After five to ten years	3.37%
After ten years	2.48%
Total	2.59%
Mortgage-backed - GSE residential
Amortized cost
Within one year	$ 0
After one to five years	48
After five to ten years	181
After ten years	138,002
Total	138,231	104,839
Estimated fair value
Within one year	0
After one to five years	50
After five to ten years	193
After ten years	139,436
Total	$ 139,679	109,116
Weighted average yield
Within one year	0.00%
After one to five years	4.60%
After five to ten years	3.91%
After ten years	1.72%
Total	1.72%
Collateralized mortgage obligations - GSE residential
Amortized cost
Within one year	$ 0
After one to five years	0
After five to ten years	2,469
After ten years	35,737
Total	38,206	52,070
Estimated fair value
Within one year	0
After one to five years	0
After five to ten years	2,645
After ten years	36,320
Total	$ 38,965	53,012
Weighted average yield
Within one year	0.00%
After one to five years	0.00%
After five to ten years	2.75%
After ten years	1.59%
Total	1.66%
State and political subdivisions
Amortized cost
Within one year	$ 652
After one to five years	5,947
After five to ten years	65,518
After ten years	402,795
Total	474,912	454,486
Estimated fair value
Within one year	654
After one to five years	6,024
After five to ten years	70,889
After ten years	425,000
Total	$ 502,567	488,097
Weighted average yield
Within one year	3.54%
After one to five years	3.86%
After five to ten years	3.32%
After ten years	2.82%
Total	2.90%
Corporate bonds
Amortized cost
Within one year	$ 0
After one to five years	357
After five to ten years	3,894
After ten years	0
Total	4,251	4,259
Estimated fair value
Within one year	0
After one to five years	366
After five to ten years	3,877
After ten years	0
Total	$ 4,243	$ 4,363
Weighted average yield
Within one year	0.00%
After one to five years	4.10%
After five to ten years	4.54%
After ten years	0.00%
Total	4.51%

Securities - Unrealized Losses (Details) $ in Thousands	Mar. 31, 2021 USD ($) security	Dec. 31, 2020 USD ($) security
Less than 12 Months
Fair Value	$ 110,202	$ 18,458
Unrealized Losses	$ 2,433	$ 73
Number of Securities \| security	47	13
12 Months or More
Fair Value	$ 24	$ 25
Unrealized Losses	$ 1	$ 0
Number of Securities \| security	1	1
Total
Fair Value	$ 110,226	$ 18,483
Unrealized Losses	$ 2,434	$ 73
Number of Securities \| security	48	14
Mortgage-backed - GSE residential
Less than 12 Months
Fair Value	$ 55,185	$ 0
Unrealized Losses	$ 1,464	$ 0
Number of Securities \| security	8	0
12 Months or More
Fair Value	$ 0	$ 0
Unrealized Losses	$ 0	$ 0
Number of Securities \| security	0	0
Total
Fair Value	$ 55,185	$ 0
Unrealized Losses	$ 1,464	$ 0
Number of Securities \| security	8	0
Collateralized mortgage obligations - GSE residential
Less than 12 Months
Fair Value	$ 7,591	$ 9,933
Unrealized Losses	$ 26	$ 42
Number of Securities \| security	6	5
12 Months or More
Fair Value	$ 0	$ 0
Unrealized Losses	$ 0	$ 0
Number of Securities \| security	0	0
Total
Fair Value	$ 7,591	$ 9,933
Unrealized Losses	$ 26	$ 42
Number of Securities \| security	6	5
State and political subdivisions
Less than 12 Months
Fair Value	$ 44,008	$ 8,525
Unrealized Losses	$ 861	$ 31
Number of Securities \| security	32	8
12 Months or More
Fair Value	$ 24	$ 25
Unrealized Losses	$ 1	$ 0
Number of Securities \| security	1	1
Total
Fair Value	$ 44,032	$ 8,550
Unrealized Losses	$ 862	$ 31
Number of Securities \| security	33	9
Corporate bonds
Less than 12 Months
Fair Value	$ 3,418	$ 0
Unrealized Losses	$ 82	$ 0
Number of Securities \| security	1	0
12 Months or More
Fair Value	$ 0	$ 0
Unrealized Losses	$ 0	$ 0
Number of Securities \| security	0	0
Total
Fair Value	$ 3,418	$ 0
Unrealized Losses	$ 82	$ 0
Number of Securities \| security	1	0

Securities - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Securities - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Gross gains on available-for-sale securities	$ 21	$ 402
Gross losses on available-for-sale securities	11	$ 9
Gross gains on available-for-sale- securities included an other-than-temporary impaired municipal security settled in 2020	$ 75
Mutual Fund
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Equity securities			$ 2,000
Private Equity Security
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Equity securities			$ 11,000
Acquired privately-held security, term	5 years
Acquired privately-held security, extension term	5 years

Securities - Equity Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Net gains (losses) recognized during the reporting period on equity securities	$ (39)	$ 34
Less: net gains recognized during the reporting period on equity securities sold during the reporting period	0	0
Unrealized gain (losses) recognized during the reporting period on equity securities still held at the reporting date	$ (39)	$ 34

Loans and Allowance for Loan Losses ("ALLL") - Category of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 4,522,945	$ 4,455,100
Less: Allowance for loan losses	74,551	75,295	$ 51,458	$ 56,896
Less: Net deferred loan fees and costs	14,345	13,203
Net loans	4,434,049	4,366,602
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,284,047	1,338,757
Less: Allowance for loan losses	23,464	24,693	21,129	35,864
Energy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	342,899	345,233
Less: Allowance for loan losses	20,292	18,341	7,599	6,565
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,191,634	1,179,534
Less: Allowance for loan losses	20,609	22,354	12,623	8,085
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	617,200	563,144
Less: Allowance for loan losses	3,837	3,612	5,021	3,516
Residential and multifamily real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	687,893	680,932
Less: Allowance for loan losses	6,056	5,842	4,687	2,546
Paycheck Protection Program (“PPP”)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	336,355	292,230
Less: Allowance for loan losses	0	0	0	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	62,917	55,270
Less: Allowance for loan losses	$ 293	$ 453	$ 399	$ 320

Loans and Allowance for Loan Losses ("ALLL") - Activity by Portfolio Segment and Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Allowance for loan losses
Beginning balance	$ 75,295	$ 56,896
Provision for loan losses	7,500	13,950
Charge-offs	(8,266)	(19,460)
Recoveries	22	72
Ending balance	74,551	51,458
Commercial
Allowance for loan losses
Beginning balance	24,693	35,864
Provision for loan losses	7,015	3,271
Charge-offs	(8,266)	(18,077)
Recoveries	22	71
Ending balance	23,464	21,129
Energy
Allowance for loan losses
Beginning balance	18,341	6,565
Provision for loan losses	1,951	2,313
Charge-offs	0	(1,279)
Recoveries	0	0
Ending balance	20,292	7,599
Commercial real estate
Allowance for loan losses
Beginning balance	22,354	8,085
Provision for loan losses	(1,745)	4,538
Charge-offs	0	0
Recoveries	0	0
Ending balance	20,609	12,623
Construction and land development
Allowance for loan losses
Beginning balance	3,612	3,516
Provision for loan losses	225	1,505
Charge-offs	0	0
Recoveries	0	0
Ending balance	3,837	5,021
Residential and multifamily real estate
Allowance for loan losses
Beginning balance	5,842	2,546
Provision for loan losses	214	2,141
Charge-offs	0	0
Recoveries	0	0
Ending balance	6,056	4,687
Paycheck Protection Program (“PPP”)
Allowance for loan losses
Beginning balance	0	0
Provision for loan losses	0	0
Charge-offs	0	0
Recoveries	0	0
Ending balance	0	0
Consumer
Allowance for loan losses
Beginning balance	453	320
Provision for loan losses	(160)	182
Charge-offs	0	(104)
Recoveries	0	1
Ending balance	$ 293	$ 399

Loans and Allowance for Loan Losses ("ALLL") - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	$ 8,760	$ 9,533
Collectively evaluated for impairment	65,791	65,762
Allowance for loan losses	74,551	75,295	$ 51,458	$ 56,896
Allocated to loans:
Individually evaluated for impairment	109,073	121,614
Collectively evaluated for impairment	4,413,872	4,333,486
Total Loans Receivable	4,522,945	4,455,100
Commercial
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	832	1,115
Collectively evaluated for impairment	22,632	23,578
Allowance for loan losses	23,464	24,693	21,129	35,864
Allocated to loans:
Individually evaluated for impairment	39,287	44,678
Collectively evaluated for impairment	1,244,760	1,294,079
Total Loans Receivable	1,284,047	1,338,757
Energy
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	4,938	3,370
Collectively evaluated for impairment	15,354	14,971
Allowance for loan losses	20,292	18,341	7,599	6,565
Allocated to loans:
Individually evaluated for impairment	27,215	26,045
Collectively evaluated for impairment	315,684	319,188
Total Loans Receivable	342,899	345,233
Commercial real estate
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	2,990	5,048
Collectively evaluated for impairment	17,619	17,306
Allowance for loan losses	20,609	22,354	12,623	8,085
Allocated to loans:
Individually evaluated for impairment	36,028	44,318
Collectively evaluated for impairment	1,155,606	1,135,216
Total Loans Receivable	1,191,634	1,179,534
Construction and land development
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	3,837	3,612
Allowance for loan losses	3,837	3,612	5,021	3,516
Allocated to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	617,200	563,144
Total Loans Receivable	617,200	563,144
Residential and multifamily real estate
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	6,056	5,842
Allowance for loan losses	6,056	5,842	4,687	2,546
Allocated to loans:
Individually evaluated for impairment	6,302	6,329
Collectively evaluated for impairment	681,591	674,603
Total Loans Receivable	687,893	680,932
Paycheck Protection Program (“PPP”)
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Allowance for loan losses	0	0	0	0
Allocated to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	336,355	292,230
Total Loans Receivable	336,355	292,230
Consumer
Period end allowance for loan losses allocated to:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	293	453
Allowance for loan losses	293	453	$ 399	$ 320
Allocated to loans:
Individually evaluated for impairment	241	244
Collectively evaluated for impairment	62,676	55,026
Total Loans Receivable	$ 62,917	$ 55,270

Loans and Allowance for Loan Losses ("ALLL") - Loan Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 43,561	$ 44,832
Current	4,479,384	4,410,268
Total Loans Receivable	4,522,945	4,455,100
Loans >= 90 Days and Accruing	3,183	1,024
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	10,583	10,137
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	403	7,941
90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	32,575	26,754
Commercial
Financing Receivable, Past Due [Line Items]
Total Past Due	23,925	19,997
Current	1,260,122	1,318,760
Total Loans Receivable	1,284,047	1,338,757
Loans >= 90 Days and Accruing	0	0
Commercial \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	7,813	8,497
Commercial \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	403	264
Commercial \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	15,709	11,236
Energy
Financing Receivable, Past Due [Line Items]
Total Past Due	7,489	7,173
Current	335,410	338,060
Total Loans Receivable	342,899	345,233
Loans >= 90 Days and Accruing	0	372
Energy \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	748	0
Energy \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Energy \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	6,741	7,173
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	4,097	12,565
Current	1,187,537	1,166,969
Total Loans Receivable	1,191,634	1,179,534
Loans >= 90 Days and Accruing	0	0
Commercial real estate \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	63
Commercial real estate \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	7,677
Commercial real estate \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	4,097	4,825
Construction and land development
Financing Receivable, Past Due [Line Items]
Total Past Due	862	0
Current	616,338	563,144
Total Loans Receivable	617,200	563,144
Loans >= 90 Days and Accruing	0	0
Construction and land development \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	862	0
Construction and land development \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Construction and land development \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Residential and multifamily real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	7,188	5,097
Current	680,705	675,835
Total Loans Receivable	687,893	680,932
Loans >= 90 Days and Accruing	3,183	652
Residential and multifamily real estate \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,160	1,577
Residential and multifamily real estate \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Residential and multifamily real estate \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	6,028	3,520
Paycheck Protection Program (“PPP”)
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current	336,355	292,230
Total Loans Receivable	336,355	292,230
Loans >= 90 Days and Accruing	0	0
Paycheck Protection Program (“PPP”) \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Paycheck Protection Program (“PPP”) \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Paycheck Protection Program (“PPP”) \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current	62,917	55,270
Total Loans Receivable	62,917	55,270
Loans >= 90 Days and Accruing	0	0
Consumer \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 0	$ 0

Loans and Allowance for Loan Losses ("ALLL") - Impaired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Recorded Balance
Total	$ 109,073	$ 121,614
Unpaid Principal Balance
Total	133,140	145,680
Specific Allowance	8,760	9,533
Commercial
Recorded Balance
Loans without a specific valuation	36,174	36,111
Loans with a specific valuation	3,113	8,567
Total	39,287	44,678
Unpaid Principal Balance
Loans without a specific valuation	38,124	50,245
Loans with a specific valuation	15,297	8,567
Total	53,421	58,812
Specific Allowance	832	1,115
Energy
Recorded Balance
Loans without a specific valuation	103	3,864
Loans with a specific valuation	27,112	22,181
Total	27,215	26,045
Unpaid Principal Balance
Loans without a specific valuation	103	6,677
Loans with a specific valuation	35,204	27,460
Total	35,307	34,137
Specific Allowance	4,938	3,370
Commercial real estate
Recorded Balance
Loans without a specific valuation	10,553	10,079
Loans with a specific valuation	25,475	34,239
Total	36,028	44,318
Unpaid Principal Balance
Loans without a specific valuation	12,138	11,663
Loans with a specific valuation	25,475	34,239
Total	37,613	45,902
Specific Allowance	2,990	5,048
Construction and land development
Recorded Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Unpaid Principal Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Specific Allowance	0	0
Residential and multifamily real estate
Recorded Balance
Loans without a specific valuation	6,302	6,329
Loans with a specific valuation	0	0
Total	6,302	6,329
Unpaid Principal Balance
Loans without a specific valuation	6,558	6,585
Loans with a specific valuation	0	0
Total	6,558	6,585
Specific Allowance	0	0
Paycheck Protection Program (“PPP”)
Recorded Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Unpaid Principal Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Specific Allowance	0	0
Consumer
Recorded Balance
Loans without a specific valuation	241	244
Loans with a specific valuation	0	0
Total	241	244
Unpaid Principal Balance
Loans without a specific valuation	241	244
Loans with a specific valuation	0	0
Total	241	244
Specific Allowance	$ 0	$ 0

Loans and Allowance for Loan Losses ("ALLL") - Impaired Loan Interest Income and Average Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Financing Receivable, Impaired [Line Items]
Total interest income recognized	$ 642	$ 1,195
Total average impaired loans	112,124	124,013
Commercial
Financing Receivable, Impaired [Line Items]
Total interest income recognized	303	910
Total average impaired loans	41,919	86,626
Energy
Financing Receivable, Impaired [Line Items]
Total interest income recognized	16	122
Total average impaired loans	27,431	16,976
Commercial real estate
Financing Receivable, Impaired [Line Items]
Total interest income recognized	287	123
Total average impaired loans	36,215	14,927
Construction and land development
Financing Receivable, Impaired [Line Items]
Total interest income recognized	0	0
Total average impaired loans	0	0
Residential and multifamily real estate
Financing Receivable, Impaired [Line Items]
Total interest income recognized	36	40
Total average impaired loans	6,316	5,230
Paycheck Protection Program (“PPP”)
Financing Receivable, Impaired [Line Items]
Total interest income recognized	0	0
Total average impaired loans	0	0
Consumer
Financing Receivable, Impaired [Line Items]
Total interest income recognized	0	0
Total average impaired loans	$ 243	$ 254

Loans and Allowance for Loan Losses ("ALLL") - Non-Accrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	$ 63,319	$ 75,051
Commercial
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	22,070	26,691
Energy
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	27,112	25,927
Commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	10,821	19,088
Construction and land development
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	0	0
Residential and multifamily real estate
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	3,075	3,101
Paycheck Protection Program (“PPP”)
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	0	0
Consumer
Financing Receivable, Nonaccrual [Line Items]
Total non-accrual loans	$ 241	$ 244

Loans and Allowance for Loan Losses ("ALLL") - Troubled Debt Restructuring Loans (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021 USD ($) contract	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	$ 0	$ 5,511
Number of Loans \| contract	16		17
Outstanding Balance	$ 61,715		$ 63,095
Balance 90 days past due at any time during previous 12 months	6,734		5,489
Increase in allowance for loan losses from loan restructuring	$ 5,000		$ 4,000
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract	6		7
Outstanding Balance	$ 21,631		$ 22,759
Balance 90 days past due at any time during previous 12 months	$ 4,115		$ 2,776
Energy
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract	4		4
Outstanding Balance	$ 10,850		$ 11,053
Balance 90 days past due at any time during previous 12 months	$ 2,619		$ 2,713
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract	4		4
Outstanding Balance	$ 25,990		$ 26,038
Balance 90 days past due at any time during previous 12 months	$ 0		$ 0
Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract	0		0
Outstanding Balance	$ 0		$ 0
Balance 90 days past due at any time during previous 12 months	$ 0		$ 0
Residential and multifamily real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract	2		2
Outstanding Balance	$ 3,244		$ 3,245
Balance 90 days past due at any time during previous 12 months	$ 0		$ 0
Paycheck Protection Program (“PPP”)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract	0		0
Outstanding Balance	$ 0		$ 0
Balance 90 days past due at any time during previous 12 months	$ 0		$ 0
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract	0		0
Outstanding Balance	$ 0		$ 0
Balance 90 days past due at any time during previous 12 months	0		$ 0
Interest Rate Reduction \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	0	3,171
Extension of Maturity Date \| Energy
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	$ 0	$ 2,340

Derivatives and Hedging - Outstanding Derivatives (Details) - Back-to-back swaps - Not Designated as Hedging Instrument $ in Thousands	Mar. 31, 2021 USD ($) derivative	Dec. 31, 2020 USD ($) derivative
Derivative [Line Items]
Number of Instruments \| derivative	56	56
Notional Amount \| $	$ 546,947	$ 515,567

Derivatives and Hedging - Fair Value of Derivatives (Details) - Not Designated as Hedging Instrument - Interest rate products - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Other assets
Derivative [Line Items]
Asset Derivatives	$ 15,561	$ 24,094
Other liabilities
Derivative [Line Items]
Liability Derivatives	$ 15,766	$ 24,454

Time Deposits and Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Time deposits
Within One Year	$ 763,848
One to Two Years	115,321
Two to Three Years	42,981
Three to Four Years	8,193
Four to Five Years	1,411
After Five Years	37
Total	931,791	$ 1,043,482
Fed funds purchased & repurchase agreements	3,294	2,306
FHLB borrowings
Within One Year	16,500
One to Two Years	11,500
Two to Three Years	35,000
Three to Four Years	0
Four to Five Years	5,100
After Five Years	215,000
Total	283,100	$ 293,100
Trust preferred securities
Within One Year	0
One to Two Years	0
Two to Three Years	0
Three to Four Years	0
Four to Five Years	0
After Five Years	974
Total	974
Total
Within One Year	783,642
One to Two Years	126,821
Two to Three Years	77,981
Three to Four Years	8,193
Four to Five Years	6,511
After Five Years	216,011
Total	1,219,159
Contract value	$ 2,600

Change in Accumulated Other Comprehensive Income ("AOCI") (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain on sale of available-for-sale debt securities	$ 10	$ 393
Income tax expense	2,908	293
Net income	12,035	3,857
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain on sale of available-for-sale debt securities	10	393
Income tax expense	2	96
Net income	$ 8	$ 297

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

Regulatory Matters (Details) $ in Thousands	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Total Capital to Risk-Weighted Assets
Actual, amount	$ 668,393	$ 656,806
Actual, ratio	0.133	0.131
Tier I Capital to Risk-Weighted Assets
Actual, amount	$ 605,281	$ 593,865
Actual, ratio	0.120	0.118
Common Equity Tier 1 to Risk-Weighted Assets
Actual, amount	$ 604,307	$ 592,902
Actual, ratio	0.120	0.118
Tier I Capital to Average Assets
Actual, amount	$ 605,281	$ 593,865
Actual, ratio	0.105	0.108
Bank
Total Capital to Risk-Weighted Assets
Actual, amount	$ 624,240	$ 611,533
Actual, ratio	0.124	0.122
Required to be considered well capitalized, amount	$ 503,528	$ 502,111
Required to be considered well capitalized, ratio	0.100	0.100
Tier I Capital to Risk-Weighted Assets
Actual, amount	$ 561,155	$ 548,615
Actual, ratio	0.111	0.109
Required to be considered well capitalized, amount	$ 402,822	$ 401,689
Required to be considered well capitalized, ratio	0.080	0.080
Common Equity Tier 1 to Risk-Weighted Assets
Actual, amount	$ 561,155	$ 548,615
Actual, ratio	0.111	0.109
Required to be considered well capitalized, amount	$ 327,293	$ 326,372
Required to be considered well capitalized, ratio	6.50%	6.50%
Tier I Capital to Average Assets
Actual, amount	$ 561,155	$ 548,615
Actual, ratio	0.097	0.100
Required to be considered well capitalized, amount	$ 287,942	$ 274,302
Required to be considered well capitalized, ratio	0.050	0.050
Minimum Capital Required - Basel III
Total Capital to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 528,882	$ 527,486
Minimum capital required, Basel III fully phased-in, ratio	0.105	0.105
Tier I Capital to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 428,143	$ 427,012
Minimum capital required, Basel III fully phased-in, ratio	0.085	0.085
Common Equity Tier 1 to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 352,588	$ 351,657
Minimum capital required, Basel III fully phased-in, ratio	7.00%	7.00%
Tier I Capital to Average Assets
Minimum capital required, Basel III fully phased-in, amount	$ 230,468	$ 219,550
Minimum capital required, Basel III fully phased-in, ratio	0.040	0.040
Minimum Capital Required - Basel III \| Bank
Total Capital to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 528,704	$ 527,217
Minimum capital required, Basel III fully phased-in, ratio	0.105	0.105
Tier I Capital to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 427,999	$ 426,794
Minimum capital required, Basel III fully phased-in, ratio	0.085	0.085
Common Equity Tier 1 to Risk-Weighted Assets
Minimum capital required, Basel III fully phased-in, amount	$ 352,470	$ 351,478
Minimum capital required, Basel III fully phased-in, ratio	7.00%	7.00%
Tier I Capital to Average Assets
Minimum capital required, Basel III fully phased-in, amount	$ 230,354	$ 219,441
Minimum capital required, Basel III fully phased-in, ratio	0.040	0.040

Stock-Based Compensation - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) shares
Performance Based Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Granted (in shares)	63,631
Award performance metric period	3 years
Unrecognized compensation cost \| $	$ 968
Period for recognizing stock-based compensation expense	2 years 8 months 12 days
Performance Based Stock Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payout percentage	0.00%
Performance Based Stock Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payout percentage	150.00%
All Other Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
Restricted Stock Units and Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	194,211
Unrecognized compensation cost \| $	$ 4,000
Period for recognizing stock-based compensation expense	2 years 3 months 18 days
2018 Omnibus Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for future issuance (in shares)	1,831,858

Stock-Based Compensation - Total Stock Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 649	$ 934
Stock appreciation rights
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	236	256
Performance-based stock awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	(266)	74
Restricted stock units and awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	665	604
Employee stock purchase plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 14	$ 0

Stock-Based Compensation - Status and Changes in Performance-Based Awards (Details) - Performance Based Stock Awards	3 Months Ended
	Mar. 31, 2021 $ / shares shares
Number of Shares
Beginning balance (in shares) \| shares	231,631
Granted (in shares) \| shares	63,631
Vested (in shares) \| shares	0
Forfeited (in shares) \| shares	0
Ending balance (in shares) \| shares	295,262
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) \| $ / shares	$ 10.51
Granted (in dollars per share) \| $ / shares	12.89
Vested (in dollars per share) \| $ / shares	0.00
Forfeited (in dollars per share) \| $ / shares	0.00
Ending balance (in dollars per share) \| $ / shares	$ 11.02

Stock-Based Compensation - Status and Changes in RSUs and RSAs (Details) - Restricted Stock Units and Awards	3 Months Ended
	Mar. 31, 2021 $ / shares shares
Number of Shares
Beginning balance (in shares) \| shares	369,217
Granted (in shares) \| shares	194,211
Vested (in shares) \| shares	(109,770)
Forfeited (in shares) \| shares	0
Ending balance (in shares) \| shares	453,658
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) \| $ / shares	$ 12.61
Granted (in dollars per share) \| $ / shares	12.87
Vested (in dollars per share) \| $ / shares	14.28
Forfeited (in dollars per share) \| $ / shares	0.00
Ending balance (in dollars per share) \| $ / shares	$ 12.32

Income Tax - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Computed at the statutory rate (21%)	$ 3,138	$ 872
Increase (decrease) resulting from
Tax-exempt income	(790)	(790)
Nondeductible expenses	50	64
State income taxes	496	142
Equity based compensation	14	26
Other adjustments	0	(21)
Income tax expense	$ 2,908	$ 293

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Income Tax - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Deferred tax assets
Allowance for loan losses	$ 17,944	$ 18,124
Lease incentive	550	564
Loan fees	3,453	3,178
Accrued expenses	874	2,128
Deferred compensation	2,197	2,474
State tax credit	2,447	2,621
Other	452	946
Total deferred tax asset	27,917	30,035
Deferred tax liability
Net unrealized gain on securities available-for-sale	(7,308)	(9,531)
FHLB stock basis	(1,248)	(1,209)
Premises and equipment	(2,703)	(2,881)
Other	(1,446)	(1,601)
Total deferred tax liability	(12,705)	(15,222)
Net deferred tax asset	$ 15,212	$ 14,813

Disclosures about Fair Value of Financial Instruments - Nonrecurring Measurements (Details) - Fair Value, Nonrecurring - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	$ 46,940	$ 55,454
Foreclosed assets held-for-sale		2,347
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed assets held-for-sale		0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed assets held-for-sale		0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	$ 46,940	55,454
Foreclosed assets held-for-sale		$ 2,347

Disclosures about Fair Value of Financial Instruments - Unobservable Inputs (Details) - Fair Value, Nonrecurring $ in Thousands	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	$ 46,940	$ 55,454
Foreclosed assets held-for-sale		2,347
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	$ 46,940	55,454
Foreclosed assets held-for-sale		$ 2,347
Level 3 \| Marketability discount \| Market comparable properties \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans, measurement input	0.10	0.01
Foreclosed assets held-for-sale, measurement input		0.07
Level 3 \| Marketability discount \| Market comparable properties \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans, measurement input	0.98	0.98
Foreclosed assets held-for-sale, measurement input		0.10
Level 3 \| Marketability discount \| Market comparable properties \| Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans, measurement input	0.27	0.24
Foreclosed assets held-for-sale, measurement input		0.09

Disclosures about Fair Value of Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financial Assets
Available-for-sale securities	$ 685,454	$ 654,588
Restricted equity securities	14,080	15,543
Carrying Amount
Financial Assets
Cash and cash equivalents	630,787	408,810
Available-for-sale securities	685,454	654,588
Loans, net of allowance for loan losses	4,434,049	4,366,602
Restricted equity securities	14,080	15,543
Interest receivable	17,987	17,236
Equity securities	13,405	13,436
Derivative assets	15,561	24,094
Total financial assets	5,811,323	5,500,309
Financial Liabilities
Deposits	5,051,570	4,694,740
Federal funds purchased and repurchase agreements	3,294	2,306
Federal Home Loan Bank advances	283,100	293,100
Other borrowings	974	963
Interest payable	1,911	2,163
Derivative liabilities	15,766	24,454
Total financial liabilities	5,356,615	5,017,726
Estimate of Fair Value Measurement
Financial Assets
Cash and cash equivalents	630,787	408,810
Available-for-sale securities	685,454	654,588
Loans, net of allowance for loan losses	4,419,714	4,351,970
Restricted equity securities	14,080	15,543
Interest receivable	17,987	17,236
Equity securities	13,405	13,436
Derivative assets	15,561	24,094
Total financial assets	5,796,988	5,485,677
Financial Liabilities
Deposits	5,083,728	4,734,251
Federal funds purchased and repurchase agreements	3,294	2,306
Federal Home Loan Bank advances	292,667	309,020
Other borrowings	2,235	2,024
Interest payable	1,911	2,163
Derivative liabilities	15,766	24,454
Total financial liabilities	5,399,601	5,074,218
Estimate of Fair Value Measurement \| Level 1
Financial Assets
Cash and cash equivalents	630,787	408,810
Available-for-sale securities	0	0
Loans, net of allowance for loan losses	0	0
Restricted equity securities	0	0
Interest receivable	0	0
Equity securities	0	0
Derivative assets	0	0
Total financial assets	630,787	408,810
Financial Liabilities
Deposits	794,559	718,459
Federal funds purchased and repurchase agreements	0	0
Federal Home Loan Bank advances	0	0
Other borrowings	0	0
Interest payable	0	0
Derivative liabilities	0	0
Total financial liabilities	794,559	718,459
Estimate of Fair Value Measurement \| Level 2
Financial Assets
Cash and cash equivalents	0	0
Available-for-sale securities	685,454	654,588
Loans, net of allowance for loan losses	0	0
Restricted equity securities	0	0
Interest receivable	17,987	17,236
Equity securities	2,216	2,247
Derivative assets	15,561	24,094
Total financial assets	721,218	698,165
Financial Liabilities
Deposits	0	0
Federal funds purchased and repurchase agreements	3,294	2,306
Federal Home Loan Bank advances	292,667	309,020
Other borrowings	2,235	2,024
Interest payable	1,911	2,163
Derivative liabilities	15,766	24,454
Total financial liabilities	315,873	339,967
Estimate of Fair Value Measurement \| Level 3
Financial Assets
Cash and cash equivalents	0	0
Available-for-sale securities	0	0
Loans, net of allowance for loan losses	4,419,714	4,351,970
Restricted equity securities	14,080	15,543
Interest receivable	0	0
Equity securities	11,189	11,189
Derivative assets	0	0
Total financial assets	4,444,983	4,378,702
Financial Liabilities
Deposits	4,289,169	4,015,792
Federal funds purchased and repurchase agreements	0	0
Federal Home Loan Bank advances	0	0
Other borrowings	0	0
Interest payable	0	0
Derivative liabilities	0	0
Total financial liabilities	$ 4,289,169	$ 4,015,792

Commitments and Credit Risk (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Total commitments	$ 1,555,704	$ 1,571,241
Commitments to originate loans
Loss Contingencies [Line Items]
Total commitments	112,738	99,596
Standby letters of credit
Loss Contingencies [Line Items]
Total commitments	41,256	48,607
Lines of credit
Loss Contingencies [Line Items]
Total commitments	$ 1,401,710	$ 1,423,038

Loans and Allowance for Loan Losses ("ALLL") - Internal Risk Ratings (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	$ 4,522,945	$ 4,455,100
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	4,062,361	3,944,627
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	191,705	224,416
Substandard \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	205,560	211,008
Substandard \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	57,967	70,734
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	5,352	4,315
Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,284,047	1,338,757
Commercial \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,171,818	1,182,519
Commercial \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	43,247	66,142
Commercial \| Substandard \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	46,912	63,407
Commercial \| Substandard \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	20,409	26,124
Commercial \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,661	565
Commercial \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Energy
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	342,899	345,233
Energy \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	141,441	145,598
Energy \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	82,314	90,134
Energy \| Substandard \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	92,032	83,574
Energy \| Substandard \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	23,421	22,177
Energy \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	3,691	3,750
Energy \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,191,634	1,179,534
Commercial real estate \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,054,675	1,035,056
Commercial real estate \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	66,101	67,710
Commercial real estate \| Substandard \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	60,037	57,680
Commercial real estate \| Substandard \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	10,821	19,088
Commercial real estate \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Commercial real estate \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	617,200	563,144
Construction and land development \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	616,061	561,871
Construction and land development \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	125
Construction and land development \| Substandard \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,139	1,148
Construction and land development \| Substandard \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Construction and land development \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Construction and land development \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Residential and multifamily real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	687,893	680,932
Residential and multifamily real estate \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	679,335	672,327
Residential and multifamily real estate \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	43	305
Residential and multifamily real estate \| Substandard \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	5,440	5,199
Residential and multifamily real estate \| Substandard \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	3,075	3,101
Residential and multifamily real estate \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Residential and multifamily real estate \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program (“PPP”)
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	336,355	292,230
Paycheck Protection Program (“PPP”) \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	336,355	292,230
Paycheck Protection Program (“PPP”) \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program (“PPP”) \| Substandard \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program (“PPP”) \| Substandard \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program (“PPP”) \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program (“PPP”) \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	62,917	55,270
Consumer \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	62,676	55,026
Consumer \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Consumer \| Substandard \| Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Consumer \| Substandard \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	241	244
Consumer \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Consumer \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	$ 0	$ 0