Enterprise Financial Services (EFSC) 10-K 26 Feb 24 2023 FY Annual report Financial data

Document and Entity Information

Document and Entity Information Document - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Feb. 21, 2024	Jun. 30, 2023
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-15373
Entity Registrant Name	ENTERPRISE FINANCIAL SERVICES CORP
Entity Central Index Key	0001025835
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	43-1706259
Entity Address, Address Line One	150 North Meramec Avenue
Entity Address, City or Town	Clayton
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	63105
City Area Code	314
Local Phone Number	725-5500
Title of 12(b) Security	Common Stock, par value $.01 per share
Trading Symbol	EFSC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 1,430,397
Entity Common Stock, Shares Outstanding		37,466,585
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Portions of our Annual Report on Form 10-K for the fiscal year ended December 31, 2022 are incorporated by reference into Item 7 of this Annual Report on Form 10-K. Additionally, the information required by Items 10, 11, 12, 13 and 14 of Part III of this Annual Report on Form 10-K is incorporated by reference to the Registrant’s Definitive Proxy Statement for its 2024 Annual Meeting of Shareholders, which will be filed pursuant to Regulation 14A under the Securities Exchange Act of 1934, as amended.
ICFR Auditor Attestation Flag	true

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2023
Audit Information [Abstract]
Auditor Firm ID	34
Auditor Name	Deloitte & Touche LLP
Auditor Location	St. Louis, Missouri

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets
Cash and due from banks	$ 193,275	$ 229,580
Federal funds sold	2,880	1,753
Interest-earning deposits	236,874	60,026
Total cash and cash equivalents	433,029	291,359
Interest-earning deposits greater than 90 days	3,856	8,029
Securities available-for-sale	1,618,273	1,535,807
Securities held-to-maturity, net	750,434	709,915
Loans held-for-sale	359	1,228
Loans	10,884,118	9,737,138
Allowance for credit losses on loans	(134,771)	(136,932)
Total loans, net	10,749,347	9,600,206
Other investments	66,195	63,790
Fixed assets, net	42,681	42,985
Goodwill	365,164	365,164
Intangible assets, net	12,318	16,919
Other assets	476,934	418,770
Total assets	14,518,590	13,054,172
Liabilities and Shareholders' equity
Noninterest-bearing demand accounts	3,958,743	4,642,732
Interest-bearing demand accounts	2,950,259	2,256,295
Money market accounts	3,399,280	2,655,159
Savings accounts	595,175	744,256
Certificates of deposit:
Brokered	482,759	118,968
Other	790,155	411,740
Total deposits	12,176,371	10,829,150
Subordinated debentures and notes	155,984	155,433
FHLB advances	0	100,000
Other borrowings	297,829	324,119
Other liabilities	172,338	123,207
Total liabilities	12,802,522	11,531,909
Shareholders' equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized; 75,000 shares issued and outstanding, respectively ($1,000 per share liquidation preference)	71,988	71,988
Common stock, $0.01 par value; 75,000,000 shares authorized; 37,416,028 and 37,253,292 shares issued and outstanding, respectively	374	373
Additional paid-in capital	995,208	982,660
Retained earnings	749,513	597,574
Accumulated other comprehensive loss, net	(101,015)	(130,332)
Total shareholders' equity	1,716,068	1,522,263
Total liabilities and shareholders' equity	$ 14,518,590	$ 13,054,172

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2023	Dec. 31, 2022
Shareholders' equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	75,000	75,000
Preferred stock, shares outstanding	75,000	75,000
Preferred stock, liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	37,416,028	37,253,292
Common stock, shares outstanding	37,416,028	37,253,292

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest income:
Loans	$ 687,852	$ 456,007	$ 348,615
Debt securities:
Taxable	39,510	28,267	18,030
Nontaxable	22,717	18,838	13,814
Interest-earning deposits	13,430	10,599	1,496
Dividends on equity securities	1,410	1,371	1,275
Total interest income	764,919	515,082	383,230
Interest expense:
Interest Expense, Deposits	183,723	30,158	10,668
Subordinated debentures and notes	9,781	9,166	10,960
FHLB advances	2,752	599	803
Other borrowings	6,071	1,256	605
Total interest expense	202,327	41,179	23,036
Net interest income	562,592	473,903	360,194
Provision (benefit) for credit losses	36,605	(611)	13,385
Net interest income after provision (benefit) for credit losses	525,987	474,514	346,809
Noninterest income:
Total noninterest income	68,725	59,162	67,743
Noninterest expense:
Employee compensation and benefits	164,566	147,029	124,904
Deposit costs	72,293	31,082	14,211
Occupancy	16,526	17,640	16,286
Data processing	15,196	13,513	12,242
Professional fees	5,719	7,079	4,289
Branch-closure expenses	0	0	3,441
Merger-related expenses	0	0	22,082
Other expense	73,886	57,873	48,464
Noninterest expense	348,186	274,216	245,919
Income before income tax expense	246,526	259,460	168,633
Income tax expense	52,467	56,417	35,578
Net income	194,059	203,043	133,055
Preferred stock dividends	3,750	4,041	0
Net income available to common shareholders	$ 190,309	$ 199,002	$ 133,055
Earnings per common share:
Basic (usd per share)	$ 5.09	$ 5.32	$ 3.86
Diluted (usd per share)	$ 5.07	$ 5.31	$ 3.86
Deposit Account [Member]
Noninterest income:
Total noninterest income	$ 16,559	$ 18,326	$ 15,428
Fiduciary and Trust [Member]
Noninterest income:
Total noninterest income	10,030	10,010	10,259
Card Services Revenue [Member]
Noninterest income:
Total noninterest income	10,028	11,551	11,880
Tax credit activity, net [Member]
Noninterest income:
Total noninterest income	9,196	2,558	8,028
Total other noninterest income
Noninterest income:
Total noninterest income	$ 22,912	$ 16,717	$ 22,148

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 194,059	$ 203,043	$ 133,055
Other comprehensive income (loss), net of tax:
Change in unrealized gain (loss) on available-for-sale securities	32,155	(149,623)	(17,049)
Reclassification of gain on the sale of available-for-sale securities	(450)	0	0
Other Comprehensive Income (Loss), Reclassification of (gain) loss on held to maturity securities, net of tax	(2,605)	(2,696)	(3,624)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	(491)	2,798	1,161
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	708	412	1,169
Total other comprehensive income (loss), net	29,317	(149,109)	(18,343)
Total comprehensive income	$ 223,376	$ 53,934	$ 114,712

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Preferred	Common	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Preferred Shares, Beginning Balance (in shares) at Dec. 31, 2020		0
Common Shares, Beginning Balance (in shares) at Dec. 31, 2020			31,210,000
Shareholders' Equity, Beginning Balance at Dec. 31, 2020	$ 1,078,975	$ 0	$ 332	$ (73,528)	$ 697,839	$ 417,212	$ 37,120
Net income	133,055					133,055
Other comprehensive income (loss)	(18,343)						(18,343)
Cash dividends paid on common shares	(26,153)					(26,153)
Repurchase of common stock (in shares)			(1,300,000)
Repurchase of common stock	(60,589)		$ (12)		(30,518)	(30,059)
Issuance under equity compensation plans, net (in shares)			132,000
Issuance under equity compensation plans, net	$ 1,886				2,549	(663)
Common shares issued in connection with acquisitions	343,650,000		7,777,000
Shares issued in connection with acquisition	$ 342,280		$ 78		342,912	(710)
Preferred stock issuance, net (in shares)		75,000
Preferred stock issuance, net of $0 issuance cost	71,988	$ 71,988
Share-based compensation	6,017				6,017
Preferred Shares, Ending Balance (in shares) at Dec. 31, 2021		75,000
Common Shares, Ending Balance (in shares) at Dec. 31, 2021			37,819,000
Shareholders' Equity, Ending Balance at Dec. 31, 2021	1,529,116	$ 71,988	$ 398	(73,528)	1,018,799	492,682	18,777
Net income	203,043					203,043
Other comprehensive income (loss)	(149,109)						(149,109)
Cash dividends paid on common shares	(33,602)					(33,602)
Preferred stock dividends ($50.00 per share)	(4,041)					(4,041)
Repurchase of common stock (in shares)			(700,000)
Repurchase of common stock	(32,923)		$ (7)		(18,867)	(14,049)
Issuance under equity compensation plans, net (in shares)			134,000
Issuance under equity compensation plans, net	$ 1,773		$ 2		2,460	(689)
Common shares issued in connection with acquisitions	0
Share-based compensation	$ 8,006				8,006
Retirement of treasury stock (0 shares)			$ (20)	73,528	(27,738)	(45,770)
Preferred Shares, Ending Balance (in shares) at Dec. 31, 2022	75,000	75,000
Common Shares, Ending Balance (in shares) at Dec. 31, 2022	37,253,292		37,253,000
Shareholders' Equity, Ending Balance at Dec. 31, 2022	$ 1,522,263	$ 71,988	$ 373	0	982,660	597,574	(130,332)
Net income	194,059					194,059
Other comprehensive income (loss)	29,317						29,317
Cash dividends paid on common shares	(37,368)					(37,368)
Preferred stock dividends ($50.00 per share)	(3,750)					(3,750)
Issuance under equity compensation plans, net (in shares)			163,000
Issuance under equity compensation plans, net	$ 1,401		$ 1		2,402	(1,002)
Common shares issued in connection with acquisitions	0
Share-based compensation	$ 10,146				10,146
Preferred Shares, Ending Balance (in shares) at Dec. 31, 2023	75,000	75,000
Common Shares, Ending Balance (in shares) at Dec. 31, 2023	37,416,028		37,416,000
Shareholders' Equity, Ending Balance at Dec. 31, 2023	$ 1,716,068	$ 71,988	$ 374	$ 0	$ 995,208	$ 749,513	$ (101,015)

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends paid on common shares, per share	$ 1	$ 0.90	$ 0.75
Gross shares issued in connection with acquisition of First Choice Bancopro (in shares)			7,808
Issuance cost			$ 3,012
Preferred stock cash dividends paid (in dollars per share)	$ 50	$ 53.89
Retirement of treasury stock (in hares)		1,980

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income	$ 194,059	$ 203,043	$ 133,055
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	5,090	5,573	6,147
Provision (benefit) for credit losses	36,605	(611)	13,385
Deferred income taxes	2,380	2,194	545
Net amortization of debt securities	3,998	5,639	7,343
Net amortization (accretion) on loans	3,775	266	(1,140)
Amortization of intangible assets	4,601	5,367	5,690
Amortization of servicing assets	1,648	3,066	2,311
Mortgage loans originated-for-sale	(19,610)	(67,470)	(159,670)
Proceeds from mortgage loans sold	20,585	73,014	163,864
Investment securities	(601)	0	0
Loans sold	(2,015)	0	0
Other real estate	(187)	93	(931)
Fixed assets	(46)	(54)	0
State tax credits	(904)	(1,506)	(2,220)
Asset impairment	0	0	3,441
Share-based compensation	10,146	8,006	6,017
Changes in other assets and liabilities, net	8,714	(19,980)	(17,262)
Net cash provided by operating activities	268,238	216,640	160,575
Cash flows from investing activities:
Net cash paid for acquisitions and dispositions	0	0	212,642
Net (increase) decrease in loans	(1,238,276)	(722,677)	138,455
Sale of debt securities, available-for-sale	40,393	0	27,135
Paydown or maturity of debt securities, available-for-sale	233,105	238,909	306,360
Paydown or maturity of debt securities, held-to-maturity	9,135	11,913	49,947
Redemption of other investments	92,879	12,989	18,159
Sale of loans	44,975	0	0
Sale of state tax credits held-for-sale	4,592	20,645	18,507
Sale of other real estate	457	2,517	5,915
Sale of fixed assets	357	1,699	0
Settlement of bank-owned life insurance policies	1,155	534	0
Payments for the purchase of:
Available-for-sale debt securities	(318,797)	(728,247)	(779,481)
Held-to-maturity debt securities	(56,365)	(182,004)	0
Other investments	(114,746)	(19,286)	(9,564)
State tax credits held-for-sale	(90)	(18,846)	(8,689)
Fixed assets	(6,556)	(1,930)	(2,500)
Net cash used in investing activities	(1,307,782)	(1,383,784)	(23,114)
Cash flows from financing activities:
Net (decrease) increase in noninterest-bearing deposit accounts	(683,989)	64,296	869,203
Net (decrease) increase in interest-bearing deposit accounts	2,031,210	(578,945)	648,778
Payments for the redemption of subordinated notes	0	0	(50,000)
Net increase (decrease) in short term FHLB advances, net	(100,000)	100,000	(160,000)
Repayments of long-term FHLB advances	0	(50,000)	0
Repayments of notes payable	(5,714)	(5,714)	(7,143)
Net (decrease) increase in other borrowings	(20,576)	(24,030)	59,925
Dividends paid on common stock	(37,368)	(33,602)	(26,153)
Repurchase of common stock	0	(32,923)	(60,589)
Dividends paid on preferred stock	(3,750)	(4,041)	0
Proceeds from issuance of preferred stock, net	0	0	71,988
Other, net	1,401	1,773	516
Net cash provided by (used in) financing activities	1,181,214	(563,186)	1,346,525
Net (decrease) increase in cash and cash equivalents	141,670	(1,730,330)	1,483,986
Cash and cash equivalents, beginning of period	291,359	2,021,689	537,703
Cash and cash equivalents, end of period	433,029	291,359	2,021,689
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	195,392	40,736	23,957
Cash paid during the period for income taxes	50,117	46,009	56,845
Noncash investing and financing transactions:
Real Estate Owned, Transfer to Real Estate Owned	6,933	0	3,227
Sales of other real estate financed	0	0	228
Transfer of securities from available-for-sale to held-to-maturity	0	116,927	0
Transfer to loans from fixed assets for building sale and leaseback	1,460	0	0
Right-of-use assets obtained in exchange for lease obligations	15,640	9,512	5,658
Leasehold improvement allowance in other assets	$ 2,483	$ 0	$ 0
Common shares issued in connection with acquisitions	0	0	343,650

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The significant accounting policies used by the Company in the preparation of the consolidated financial statements are summarized below. Business and Consolidation Enterprise is a financial holding company that provides a full range of banking and wealth management services to individuals and corporate customers primarily located in Arizona, California, Florida, Kansas, Missouri, Nevada, and New Mexico through its banking subsidiary, Enterprise Bank & Trust. All intercompany accounts and transactions have been eliminated. The Company and its banking subsidiary are subject to the regulations of various federal and state agencies and undergo periodic examinations by those regulatory agencies. The Company has one operating segment. Use of Estimates The consolidated financial statements of the Company have been prepared in conformity with GAAP. In preparing the consolidated financial statements, management is required to make estimates and assumptions, which significantly affect the reported amounts in the consolidated financial statements. Such estimates include the valuation of loans, goodwill, intangible assets, and other long-lived assets, along with assumptions used in the calculation of income taxes, among others. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using experience and other factors, including the current economic environment, which management believes to be reasonable under the circumstances. Management adjusts such estimates and assumptions when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in those estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods. Cash Flow Information For purposes of reporting cash flows, the Company considers cash and due from banks, interest-bearing deposits and federal funds sold that mature within 90 days to be cash and cash equivalents. Cash balances include deposits in transit and drafts in the process of collection. The Federal Reserve is authorized to establish reserve requirements on depository institutions. In 2020, the Federal Reserve reduced the reserve requirement to zero percent. As such, cash balances at the Federal Reserve at December 31, 2023 and 2022 were not subject to a reserve requirement. Recent Accounting Pronouncements FASB ASU 2021-01, Reference Rate Reform (Topic 848): Scope (ASU 2021-01) . ASU 2021-01 was issued in January 2021 and provides optional expedients and exceptions in ASC 848 to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendment only applies to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by the amendments will not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. The amendments in this update were effective immediately upon issuance and did not have a material effect on the consolidated financial statements. In December 2022, ASU 2022-06 Reference Rate Reform (Topic 848): Deferral of the Sunset date of Topic 848 was issued, which extends the sunset date from December 31, 2022 to December 31, 2024. FASB ASU 2022-02, Financial Instruments–Credit Losses (Topic 326); Troubled Debt Restructurings and Vintage Disclosures. ASU 2022-02 was issued in March 2022 and eliminates the accounting guidance on troubled debt restructurings for creditors in ASC 310-40 and amends the guidance on “vintage disclosures” to require disclosure of current-period gross write-offs by year of origination. The ASU also updates the requirements related to accounting for credit losses under ASC 326 and adds enhanced disclosures for creditors with respect to loan refinancings and restructurings for borrowers experiencing financial difficulty. The amendments in this update will be effective for fiscal years beginning after December 15, 2022 for entities that have adopted the amendments in ASU 2016-13, Financial Instruments–Credit Losses (Topic 326) Measurement of Credit Losses on Financial Instruments . The adoption of ASU 2022-02 did not have a material effect on the consolidated financial statements. FASB ASU 2022-03, Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. ASU 2022-03 was issued in June 2022 to (1) clarify the guidance in Topic 820, Fair Value Measurement, when measuring the fair value of an equity security subject to contractual restrictions that prohibit the sale of an equity security, (2) amend a related illustrative example, and (3) introduce new disclosure requirements for equity securities subject to contractual sale restrictions that are measured at fair value in accordance with Topic 820. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within those fiscal years. The Company has evaluated the accounting and disclosure requirements of ASU 2022-03 and does not expect them to have a material effect on the consolidated financial statements. FASB ASU 2023-02, Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method . ASU 2023-02 was issued in March 2023 to allow reporting entities to consistently account for equity investments made primarily for the purpose of receiving income tax credits and other income tax benefits. If certain conditions are met, a reporting entity may elect to account for its tax equity investments by using the proportional amortization method regardless of the program from which it receives income tax credits, instead of only low-income-housing tax credit (“LIHTC”) structures. This amendment also eliminates certain LIHTC-specific guidance aligning the accounting with other equity investments in tax credit structures. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within those fiscal years. The Company is evaluating the accounting and disclosure requirements of ASU 2023-02 and does not expect them to have a material effect on the consolidated financial statements. FASB ASU 2023-07, Improvements to Reportable Segment Disclosures . ASU 2023-07 was issued in November 2023 to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment disclosures. The amendments in this update require annual and interim disclosures on significant segment expenses that are regularly provided to the chief operating decision maker and require annual and interim disclosures on “other segment items” that comprise the difference between segment revenue less segment expense compared to the reported measure of segment profit or loss. In addition, the amendments will require all annual disclosures that are currently required to be reported on an interim basis and requires disclosure of the title and position of the chief operating decision maker and how that position uses the information to assess segment performance and the allocation of resources. ASU 2023-07 also requires entities that have a single reportable segment, such as the Company, to provide all disclosures required in this update and the existing segment disclosures in Topic 280. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of ASU 2023-07 and does not expect them to have a material effect on the consolidated financial statements. FASB ASU 2023-09, Income Tax Disclosures . ASU 2023-09 was issued in December 2023 to require annual disclosures on specific categories in the income tax rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. Annual disclosures are required on income taxes paid, including the amounts paid for federal, state and foreign taxes and the amount paid in individual jurisdictions if the amount is equal to or greater than 5% of total income taxes paid (net of refunds received). Additional annual disclosures are required on pre-tax income from continuing operations and income tax expense, disaggregated by domestic and foreign amounts. The amendments in this update are effective for fiscal years beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of ASU 2023-09 and does not expect them to have a material effect on the consolidated financial statements. Investments The Company has classified all investments in debt securities as either available-for-sale or held-to-maturity. Securities classified as available-for-sale are carried at fair value. Unrealized holding gains and losses for available-for-sale securities are excluded from earnings and reported as a net amount as a separate component of shareholders’ equity until realized. All previous fair value adjustments included in the separate component of shareholders’ equity are reversed upon sale. Securities classified as held-to-maturity are carried at amortized cost and adjusted for amortization of premiums and accretion of discounts. An ACL on held-to-maturity securities is deducted from the amortized cost basis of the securities to reflect the expected amount to be collected. When it is determined a security will not be collected, the balance is written-off through the allowance. In evaluating the need for an ACL, securities with similar risk characteristics are grouped and an estimate of expected cash flows is determined using loss experience, adjusted for current and reasonable and supportable forecasts of economic conditions. For available-for-sale securities in a loss position, the Company evaluates whether the decline in fair value below amortized cost resulted from a credit loss or other factors. Losses attributed to credit are recognized through an ACL on available-for-sale securities, limited to the amount that the fair value of securities is less than the amortized cost basis. In assessing credit loss, the Company considers, among other things, (1) the extent to which fair value is less than the amortized cost basis, (2) adverse conditions specific to the security or industry, (3) historical payment patterns, (4) the likelihood of future payments, and (5) changes to the rating of a security by a rating agency. The Company has elected to exclude accrued interest receivable balances from the estimate of the ACL as these amounts are timely written off as a credit loss expense. Adjustments to the ACL on held-to-maturity and available-for-sale securities are recognized as a component of the provision for credit losses in the Consolidated Statements of Income. Premiums and discounts are amortized or accreted over the expected lives of the respective securities as an adjustment to yield using the interest method. Dividend and interest income is recognized when earned. Realized gains and losses are included in earnings and are derived using the specific identification method for determining the cost of securities sold. Loans Held-for-Sale and Servicing Assets The Company provides long-term financing of 1-4 family residential real estate by originating fixed and variable rate loans. Long-term fixed and variable rate loans are usually sold into the secondary market with limited recourse. Upon receipt of an application for a real estate loan, the Company determines whether the loan will be sold into the secondary market or retained in the Company’s loan portfolio. The interest rates on the loans sold are locked with the buyer and the Company bears no interest rate risk related to these loans. Mortgage loans held-for-sale are carried at the lower of cost or fair value, which is determined on a specific identification method. The Company does not retain servicing on these loans. The Company also originates SBA 7(a) loans that generally provide for a guarantee of 75% of the loan, up to a maximum amount. The guaranteed portion of the loan can be sold in an active secondary market. For the years ended December 31, 2023 and 2022, all SBA7(a) loans are considered held-for-investment; however, as the Company makes the determination to sell the loans, they will be moved into the held-for-sale category. Sales of SBA guaranteed loans are executed on a servicing retained basis, and the Company retains the rights and obligations to service the loans. At December 31, 2023, the Company was servicing SBA loans that had been sold and has recorded a related servicing asset of $2.9 million. The servicing asset is accounted for under the amortization method and is evaluated for impairment. Amortization of the servicing asset is recorded as a reduction to servicing income. Gains on the sale of held-for-sale loans are reported net of direct origination fees and costs in the Company’s Consolidated Statements of Income. Loans Loans are reported at the principal balance outstanding, net of unearned fees, costs, and premiums or discounts on acquired loans. Loan origination fees, direct origination costs, and premiums or discounts resulting from acquired loans are deferred and recognized over the lives of the related loans as a yield adjustment using the interest method. Interest on loans is accrued to income based on the principal balance outstanding. The recognition of interest income is discontinued when a loan becomes 90 days past due or a significant deterioration in the borrower’s credit has occurred which, in management’s judgment, negatively impacts the collectibility of the loan. Unpaid interest on such loans is reversed at the time the loan becomes uncollectible and subsequent interest payments received are generally applied to principal if any doubt exists as to the collectibility of such principal. Loans that have not been restructured are returned to accrual status when management believes full collectibility of principal and interest is expected. Non-accrual loans that have been restructured will remain in a non-accrual status until the borrower has made at least six months of consecutive contractual payments. The Company has elected to present the accrued interest receivable balance separate from amortized cost basis, to exclude accrued interest receivable balances from the tabular disclosures, and not to estimate an ACL on accrued interest receivable as these amounts are timely written off as a credit loss expense. Accrued interest receivable totaled $66.7 million and $48.1 million at December 31, 2023 and 2022, respectively, and were reported in Other Assets on the consolidated balance sheets. Acquired Loans Acquired loans are separated into two categories based on the credit risk characteristics of the underlying borrowers as either PCD, for loans which have experienced more than insignificant credit deterioration since origination, or loans with no credit deterioration (non-PCD). At the date of acquisition, an ACL on PCD loans is determined and added to the amortized cost basis of the individual loans. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. The ACL on PCD loans is recorded in the acquisition accounting and no provision for credit losses is recognized at the acquisition date. Subsequent changes to the ACL are recorded through provision expense. For non-PCD loans, an ACL is established immediately after the acquisition through a charge to the provision for credit losses. The ACL for both PCD and non-PCD is determined by pooling loans with similar risk characteristics and using the approach described below under “Allowance for Credit Losses on Loans.” Non-accrual Loans Loans are generally placed on non-accrual status when contractually past due 90 days or more as to interest or principal payments. Additionally, whenever management becomes aware of facts or circumstances that may adversely impact the collectability of principal or interest on loans, it is management’s practice to place such loans on non-accrual status immediately, rather than delaying such action until the loans become 90 days past due. Previously accrued and uncollected interest on such loans is reversed. Income is recorded only to the extent a determination has been made that the principal balance of the loan is collectible and the interest payments are subsequently received in cash, or for a restructured loan, the borrower has made six consecutive contractual payments. If collectibility of the principal is in doubt, payments received are applied to loan principal. Loans past due 90 days or more but still accruing interest are also generally included in nonperforming loans. Loans past due 90 days or more but still accruing are classified as such where the underlying loans are both well secured (the collateral value covers principal and accrued interest) and in the process of collection. Allowance for Credit Losses on Loans The ACL on loans is a valuation account that is deducted from the amortized cost basis to present the net amount expected to be collected. Loans are charged-off against the allowance when management deems the loan uncollectible. Management estimates the allowance using relevant available information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Credit loss experience provides the basis for the estimation of expected credit losses. Adjustments to historical loss information are made for differences in current loan-specific risk characteristics such as differences in underwriting standards, portfolio mix, delinquency level, or term as well as for changes in environmental conditions, such as changes in unemployment rates, property values, or other relevant factors. The ACL on loans is measured on a collective basis when similar risk characteristics exist. The Company has identified the following portfolio segments: C&I – C&I loans consist of loans to small and medium-sized businesses in a wide variety of industries. These loans are generally collateralized by inventory, accounts receivable, equipment, real estate and other commercial assets, and may be supported by other credit enhancements such as personal guarantees. Risk arises primarily due to a difference between expected and actual cash flows of the borrower. However, the recoverability of these loans is also dependent on other factors primarily dictated by the type of collateral securing these loans. The fair value of the collateral securing these loans may fluctuate as market conditions change. Included within C&I are revolving loans supported by borrowing bases that fluctuate depending on the amount of underlying collateral. A portion of C&I loans consists of sponsor finance, which are loans with senior debt exposure to private equity backed companies. CRE – CRE loans include various types of loans for which the Company holds real property as collateral. Commercial real estate lending activity is typically restricted to owner-occupied properties or to investor properties that are owned by customers with a current banking relationship. The primary risks of CRE loans include the borrower’s inability to pay, material decreases in the value of the real estate being held as collateral and significant increases in interest rates, which may make the real estate mortgage loan unprofitable. Real estate loans may be more adversely affected by conditions in the real estate markets and in the general economy. Construction and Land Development – The Company originates loans to finance construction projects including 1-4 family residences, multifamily residences, commercial office, and industrial projects. Construction loans are generally collateralized by first liens on the real estate and have floating interest rates. Construction loans are considered to have higher risks due to construction completion and timing risk, and the ultimate repayment being sensitive to interest rate changes, governmental regulation of real property and the availability of long-term financing. Additionally, economic conditions may impact the Company’s ability to recover its investment in construction loans. Adverse economic conditions may negatively impact the real estate market which could affect the borrowers’ ability to complete and sell the project. Additionally, the fair value of the underlying collateral may fluctuate as market conditions change. Residential Real Estate – The Company originates loans to finance one- to four-family residences, secured by both first and second liens. Repayment of these loans is dependent on the borrowers’ ability to pay and the fair value of the underlying collateral. Residential loans with a second lien are inherently riskier due to the junior lien position. Agricultural – Agricultural loans are generally secured with equipment, livestock, crops or other non-real property and at times the underlying real property. Agricultural loans are primarily included as a component of CRE and C&I loans. As of December 31, 2023, the Company has ceased originating new agricultural credit relationships. Consumer – The Company provides a broad range of consumer loans to customers, including personal lines of credit, credit cards, recreational vehicles, yachts and automobile loans. Repayment of these loans is dependent on the borrowers’ ability to pay and the fair value of the underlying collateral. Consumer loans are included as a component of Other loans. The Company utilizes a DCF method to measure the ACL on loans collectively evaluated that are sub-segmented by credit risk levels. The DCF method incorporates assumptions for probability of default, loss given default, prepayments and curtailments over the contractual term of the loans. In determining the probability of default, the Company utilized regression analysis to determine certain economic factors that are relevant loss drivers in the portfolio segments based on historical or peer evaluations. National unemployment is a loss driver used in all portfolios. The annual percentage change in gross domestic product is used in Construction, Agricultural, and Consumer portfolios. The annual percentage change in a commercial real estate index, national house price index and national retail sales are used in the CRE, Residential Real Estate and C&I portfolios, respectively. The contractual term excludes expected extensions, renewals, and modifications unless the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the Company. The Company uses a one-year reasonable and supportable forecast that considers baseline, upside and downside economic scenarios. For periods beyond the forecast period, the Company reverts to historical loss rates on a straight-line basis over a one-year period. Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When management determines foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs. Other individually-evaluated loans may be remeasured using a discounted cash flow method if appropriate. Non-accrual loans, loans past due greater than 90 days and still accruing, unless adequately secured and in the process of collection, and restructured loans are evaluated individually. Loan Charge-Offs Loans are charged-off when the primary and secondary sources of repayment (cash flow, collateral, guarantors, etc.) are less than their carrying value and the amounts are deemed uncollectible. Other Real Estate and Repossessed Assets Other real estate represents property acquired through foreclosure or deeded to the Company in lieu of foreclosure on loans on which the borrowers have defaulted on the payment of principal or interest. Other real estate is initially recorded at fair value less cost to sell and subsequently at the lower of cost or fair value less estimated costs to sell. The fair value of other real estate is based upon estimates of future cash flows, market value of similar assets, if available, or independent appraisals. These estimates involve significant uncertainties and judgments. As a result, fair value estimates may not be realizable in a current sale or settlement of the other real estate. Gains, losses and writedowns resulting from the writedown or sale of other real estate are credited or charged to earnings. Gains and losses resulting from the sale of other real estate are credited or charged to current period earnings. Costs of maintaining and operating other real estate are expensed as incurred, and expenditures to complete or improve other real estate properties are capitalized if the expenditures are expected to be recovered upon ultimate sale of the property. Repossessed assets represent property, other than real estate, that is acquired through repossession and is initially recorded at estimated fair value on the date of acquisition, less costs to sell. Subsequent to repossession, the assets are carried at the lower of cost or fair value, less estimated costs to sell. Fixed Assets Buildings, leasehold improvements, furniture, fixtures, and equipment are stated at cost less accumulated depreciation. All categories are computed using the straight-line method over their respective estimated useful lives. Furniture, fixtures and equipment is depreciated over three ten State Tax Credits The Company has purchased the rights to receive 10-year streams of state tax credits at agreed upon discount rates and sells such tax credits to its clients and others. State tax credits are accounted for at cost. The Company is also a minority partner in a joint venture, accounted for as an equity method investment, that purchases state income tax credits for resale to customers. Income from both the sale of state tax credits and earnings from the joint venture are reported as tax credit income in the Consolidated Statements of Income. Cash Surrender Value of Life Insurance The Company has purchased bank-owned life insurance policies on certain bank officers. Bank-owned life insurance is recorded at its cash surrender value. Changes in the cash surrender values, including death benefits in excess of the carrying amount, are included in noninterest income. Federal Home Loan Bank Stock The Bank, as a member of the FHLB, is required to maintain an investment in the capital stock of the FHLB. The stock is redeemable at par by the FHLB, and is, therefore, carried at cost and periodically evaluated for impairment. The Company records FHLB dividends in interest income. Goodwill and Other Intangible Assets The Company tests goodwill for impairment on an annual basis and whenever events or changes in circumstances indicate the Company may not be able to recover the respective asset’s carrying amount. The Company’s annual test for impairment was performed in the fourth quarter of 2023. Such tests involve the use of estimates and assumptions. Potential impairments to goodwill must first be identified by performing a qualitative assessment which evaluates relevant events or circumstances to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If this test indicates it is more likely than not that goodwill has been impaired, then a quantitative impairment test is completed. The quantitative impairment test calculates the fair value of the reporting unit and compares it with its carrying amount, including goodwill. If the carrying amount of goodwill exceeds its implied fair market value, an impairment loss is recognized. That loss is equal to the carrying amount of goodwill that is in excess of its implied fair market value. Core deposit intangibles are amortized using an accelerated method over an estimated useful life of approximately 10 years. Impairment of Long-Lived Assets Long-lived assets, such as fixed assets and purchased intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of are separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. The assets and liabilities of a disposal group classified as held-for-sale are presented separately in the appropriate asset and liability sections of the balance sheet. Derivative Financial Instruments and Hedging Activities The Company uses derivative financial instruments to assist in managing interest rate sensitivity and to modify the repricing, maturity and option characteristics of certain assets and liabilities. In addition, the Company also offers an interest rate hedge program that includes interest rate swaps to assist its customers in managing their interest rate risk profile. In order to eliminate the interest rate risk associated with offering these products, the Company enters into derivative contracts with third parties to offset the customer contracts. The Company does not enter into derivative financial instruments for trading purposes. Derivative instruments are required to be measured at fair value and recognized as either assets or liabilities in the consolidated financial statements. Fair value represents the payment the Company would receive or pay if the item were sold or bought in a current transaction. The accounting for changes in fair value (gains or losses) of a hedged item is dependent on whether the related derivative is designated and qualifies for “hedge accounting.” The Company assigns derivatives to one of these categories at the purchase date: cash flow hedge, fair value hedge, or non-designated hedges as part of a customer interest-rate swap product. An assessment of the expected and ongoing hedge effectiveness of any derivative designated a fair value hedge or cash flow hedge is performed as required by the applicable accounting standards. Derivatives are included in other assets other liabilities Certain derivative financial instruments are not designated as cash flow or as fair value hedges for accounting purposes. These non-designated derivatives are intended to provide interest rate protection on net interest income or noninterest income but do not meet hedge accounting treatment. Customer accommodation interest rate swap contracts are not designated as hedging instruments. Changes in the fair value of these instruments are recorded in interest income or noninterest income in the consolidated statements of income depending on the underlying hedged item. Income Taxes The Company and its subsidiaries file a consolidated federal income tax return. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The need for deferred tax asset valuation allowances is based on a more-likely-than-not standard. The ability to realize deferred tax assets depends on the ability to generate sufficient positive taxable income within the carryback or carryforward periods provided for in the laws for each applicable taxing jurisdiction. The following

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE Basic earnings per common share data is calculated by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common share gives effect to all dilutive potential common shares outstanding during the period using the treasury stock method. The following table presents a summary of per common share data and amounts for the periods indicated. Year ended December 31, ($ and shares in thousands, except per share data) 2023 2022 2021 Net income available to common shareholders $ 190,309 $ 199,002 $ 133,055 Weighted average common shares outstanding 37,370 37,381 34,436 Additional dilutive common stock equivalents 137 119 60 Weighted average diluted common shares outstanding 37,507 37,500 34,496 Basic earnings per common share $ 5.09 $ 5.32 $ 3.86 Diluted earnings per common share $ 5.07 $ 5.31 $ 3.86 For 2023, 2022 and 2021, common stock equivalents of approximately 419,000, 224,000 and 158,000, respectively, were excluded from the earnings per share calculation because their effect would have been anti-dilutive.

Investments

Investments	12 Months Ended
	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Investments	INVESTMENTS The following table presents the amortized cost, gross unrealized gains and losses and fair value of securities available-for-sale and held-to-maturity: December 31, 2023 ($ in thousands) Amortized Cost Gross Gross Fair Value Available-for-sale securities: Obligations of U.S. Government-sponsored enterprises $ 316,511 $ 303 $ (20,368) $ 296,446 Obligations of states and political subdivisions 500,881 57 (68,767) 432,171 Agency mortgage-backed securities 758,283 1,181 (59,083) 700,381 Corporate debt securities 8,750 — (1,176) 7,574 U.S. Treasury Bills 184,709 62 (3,070) 181,701 Total securities available-for-sale $ 1,769,134 $ 1,603 $ (152,464) $ 1,618,273 Held-to-maturity securities: Obligations of states and political subdivisions $ 575,699 $ 7,078 $ (47,461) $ 535,316 Agency mortgage-backed securities 52,100 — (5,424) 46,676 Corporate debt securities 123,420 216 (8,981) 114,655 Total securities held-to-maturity $ 751,219 $ 7,294 $ (61,866) $ 696,647 Allowance for credit losses (785) Total securities held-to-maturity, net $ 750,434 December 31, 2022 ($ in thousands) Amortized Cost Gross Gross Fair Value Available-for-sale securities: Obligations of U.S. Government-sponsored enterprises $ 266,090 $ — $ (28,305) $ 237,785 Obligations of states and political subdivisions 507,842 27 (90,425) 417,444 Agency mortgage-backed securities 727,931 453 (68,980) 659,404 Corporate debt securities 13,750 — (1,110) 12,640 U.S. Treasury Bills 213,441 1 (4,908) 208,534 Total securities available-for-sale $ 1,729,054 $ 481 $ (193,728) $ 1,535,807 Held-to-maturity securities: Obligations of states and political subdivisions $ 529,012 $ 2,321 $ (65,347) $ 465,986 Agency mortgage-backed securities 57,018 — (6,416) 50,602 Corporate debt securities 124,620 163 (12,854) 111,929 Total securities held-to-maturity $ 710,650 $ 2,484 $ (84,617) $ 628,517 Allowance for credit losses (735) Total securities held-to-maturity, net $ 709,915 During 2023, the Company did not transfer any securities from available-for-sale to held-to-maturity. The Company believes the held-to-maturity category is consistent with the Company’s intent for these securities. In 2022, the Company transferred $116.7 million of securities from available-for-sale to held-to-maturity. The transfer of securities was made at fair value at the time of transfer. The unamortized portion of the unrealized holding gain at the time of transfer is retained in accumulated other comprehensive income and in the carrying value of held-to- maturity securities. The balance of held-to-maturity securities in the “Amortized Cost” column in the table above includes a cumulative net unamortized, unrealized gain of $14.1 million and $17.6 million at December 31, 2023 and 2022, respectively. Such amounts are amortized over the remaining life of the securities. At December 31, 2023 and 2022, there were no holdings of securities of any one issuer in an amount greater than 10% of shareholders’ equity, other than the U.S. Government agencies and sponsored enterprises. The agency mortgage-backed securities are all issued by U.S. Government-sponsored enterprises. Securities of $1.6 billion and $734.5 million at December 31, 2023 and December 31, 2022, respectively, were pledged as collateral to secure deposits of public institutions and for other purposes as required by law or contract provisions. The amortized cost and estimated fair value of debt securities at December 31, 2023, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. The weighted average life of the mortgage-backed securities is approximately 5 years. Available-for-sale Held-to-maturity ($ in thousands) Amortized Cost Estimated Amortized Cost Estimated Due in one year or less $ 141,734 $ 140,353 $ 1,230 $ 1,230 Due after one year through five years 327,794 309,375 81,887 77,227 Due after five years through ten years 130,737 117,025 190,949 183,396 Due after ten years 410,586 351,139 425,053 388,118 Agency mortgage-backed securities 758,283 700,381 52,100 46,676 $ 1,769,134 $ 1,618,273 $ 751,219 $ 696,647 There were 753 and 740 available-for-sale securities in an unrealized loss position as of December 31, 2023 and 2022, respectively, included in the following tables: December 31, 2023 Less than 12 months 12 months or more Total ($ in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Obligations of U.S. Government-sponsored enterprises $ 25,886 $ 85 $ 247,027 $ 20,283 $ 272,913 $ 20,368 Obligations of states and political subdivisions 1,168 163 428,171 68,604 429,339 68,767 Agency mortgage-backed securities 58,249 417 540,032 58,666 598,281 59,083 Corporate debt securities — — 7,574 1,176 7,574 1,176 U.S. Treasury Bills 41,857 49 103,588 3,021 145,445 3,070 $ 127,160 $ 714 $ 1,326,392 $ 151,750 $ 1,453,552 $ 152,464 December 31, 2022 Less than 12 months 12 months or more Total ($ in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Obligations of U.S. Government-sponsored enterprises $ 73,738 $ 6,249 $ 163,047 $ 22,056 $ 236,785 $ 28,305 Obligations of states and political subdivisions 103,179 13,501 311,634 76,924 414,813 90,425 Agency mortgage-backed securities 334,431 20,038 281,321 48,942 615,752 68,980 Corporate debt securities 12,640 1,110 — — 12,640 1,110 U.S. Treasury Bills 198,688 4,908 — — 198,688 4,908 $ 722,676 $ 45,806 $ 756,002 $ 147,922 $ 1,478,678 $ 193,728 The unrealized losses at both December 31, 2023 and 2022, were primarily attributable to changes in market interest rates since the securities were purchased. In 2023, an allowance for credit losses on available-for-sale investment securities was established through a provision for credit losses of $4.2 million. A debt security of $4.2 million was subsequently charged-off against that allowance. At both December 31, 2023 and 2022, there was no ACL on available-for-sale securities outstanding. Accrued interest receivable on held-to-maturity debt securities totaled $6.5 million and $5.8 million at December 31, 2023 and 2022, respectively, and is excluded from the estimate of expected credit losses. The estimate of expected credit losses considers historical credit loss information adjusted for current conditions and reasonable and supportable forecasts. At December 31, 2023 and 2022, the ACL on held-to-maturity securities was $0.8 million and $0.7 million, respectively. The proceeds, gross gains and losses realized from sales of available-for-sale investment securities were as follows: December 31, ($ in thousands) 2023 2022 2021 Gross gains realized $ 601 $ — $ — Proceeds from sales 40,393 — 27,135 Other Investments At December 31, 2023 and 2022, other investments totaled $66.2 million and $63.8 million, respectively. As a member of the FHLB, the Bank is required to maintain a minimum investment in capital stock with the FHLB consisting of membership stock and activity-based stock. The FHLB capital stock of $7.8 million, and $14.0 million at December 31, 2023 and 2022, respectively, is recorded at cost, which represents redemption value, and is included in other investments in the consolidated balance sheets. The remaining amounts in other investments primarily include various investments in SBICs, CDFIs, and the Company’s investment in unconsolidated trusts used to issue preferred securities to third parties, see “Note 10 – Subordinated Debentures and Notes.”

Loans

Loans	12 Months Ended
	Dec. 31, 2023
Receivables [Abstract]
Loans	LOANS The following table presents a summary of loans by category: ($ in thousands) December 31, 2023 December 31, 2022 Commercial and industrial $ 4,674,056 $ 3,859,964 Real estate loans: Commercial - investor owned 2,452,402 2,357,820 Commercial - owner occupied 2,344,117 2,270,551 Construction and land development 760,122 611,565 Residential 371,995 395,537 Total real estate loans 5,928,636 5,635,473 Other 285,653 248,990 Loans, before unearned loan fees 10,888,345 9,744,427 Unearned loan fees, net (4,227) (7,289) Loans, including unearned loan fees $ 10,884,118 $ 9,737,138 The loan balance includes a net premium on acquired loans of $9.6 million and $11.9 million at December 31, 2023 and 2022, respectively. At December 31, 2023 and 2022 loans of $4.8 billion and $2.8 billion, respectively, were pledged to the FHLB and the Federal Reserve. Consumer mortgage loans secured by residential real estate in process of foreclosure totaled $1.0 million at December 31, 2023. There were no consumer mortgage loans secured by residential real estate in process of foreclosure at December 31, 2022. Loans to executive officers and directors, or to entities in which such individuals had beneficial interests as a shareholder, officer, or director totaled $0.1 million and $0.1 million for the year ended December 31, 2023 and 2022, respectively. Such loans were made in the normal course of business on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other customers and did not involve more than the normal risk of collectibility. A summary of the activity, by loan category, in the allowance for credit losses on loans for 2021, 2022, and 2023 is as follows: ($ in thousands) Commercial and industrial CRE - investor owned CRE - owner occupied Construction and land development Residential real estate Other Total Balance at December 31, 2021 Allowance for credit losses on loans: Balance, beginning of year $ 58,812 $ 32,062 $ 17,012 $ 21,413 $ 4,585 $ 2,787 $ 136,671 Provision (benefit) for credit losses 14,361 568 (550) (7,365) 3,900 2,079 12,993 Initial allowance on acquired PCD loans 1,077 3,651 1,504 37 — 737 7,006 Charge-offs (12,113) (2,487) (602) (3) (1,521) (459) (17,185) Recoveries 1,688 2,083 196 454 963 172 5,556 Balance, end of year $ 63,825 $ 35,877 $ 17,560 $ 14,536 $ 7,927 $ 5,316 $ 145,041 Balance at December 31, 2022 Allowance for credit losses on loans: Balance, beginning of year $ 63,825 $ 35,877 $ 17,560 $ 14,536 $ 7,927 $ 5,316 $ 145,041 Provision (benefit) for credit losses (6,121) 46 4,867 (3,145) 540 (397) (4,210) Charge-offs (6,082) (478) (395) — (2,068) (370) (9,393) Recoveries 2,213 746 720 53 1,529 233 5,494 Balance, end of year $ 53,835 $ 36,191 $ 22,752 $ 11,444 $ 7,928 $ 4,782 $ 136,932 Balance at December 31, 2023 Allowance for credit losses on loans: Balance, beginning of year $ 53,835 $ 36,191 $ 22,752 $ 11,444 $ 7,928 $ 4,782 $ 136,932 Provision (benefit) for credit losses 38,308 (335) 523 (1,300) (2,109) 796 35,883 Charge-offs (36,302) (4,869) — (9) (656) (1,379) (43,215) Recoveries 3,045 293 130 63 979 661 5,171 Balance, end of year $ 58,886 $ 31,280 $ 23,405 $ 10,198 $ 6,142 $ 4,860 $ 134,771 The Company recorded a provision for credit losses on loans of $35.9 million and a provision benefit for credit losses of $4.2 million for the years ended December 31, 2023 and 2022, respectively. An additional provision for credit losses of $0.7 million and $3.6 million was recorded in 2023 and 2022, respectively, for securities, unfunded commitments and accrued interest on nonaccrual loans. Acquisition-related provision expense of $25.4 million in 2021 was included in the provision for credit losses. This expense, commonly referred to as the “CECL double-count”, is recognized when a loan portfolio is acquired. The CECL methodology incorporates various economic scenarios. The Company utilizes three forecasts in the model; Moody’s baseline, a stronger near-term growth upside and a moderate recession downside forecast. The Company weights these scenarios at 40%, 30%, and 30%, respectively, which added approximately $12.3 million to the ACL over the baseline model at December 31, 2023. The forecasts at the end of 2023 incorporate an expectation that the federal funds rate has peaked at the range of 5.25% to 5.50% and will begin falling in the latter half of 2024. It is also assumed that the bank failures in early 2023 were not an indication of a broader problem in the industry. The Company has also recognized various risks posed by loans in certain segments, including the commercial office sector, by allocating additional reserves to those segments. Some of the key risks to the forecasts that could result in future provision for credit losses are market reactions to the Federal Reserve policy actions that could push the economy into a recession, persistently higher inflation, tightening in the credit markets, and further weakness in the financial system. In addition to the CECL methodology, the Company incorporates qualitative adjustments into the ACL on loans to capture credit risks inherent within the loan portfolio that are not captured in the DCF model. Included in these risks are 1) changes in lending policies and procedures, 2) actual and expected changes in business and economic conditions, 3) changes in the nature and volume of the portfolio, 4) changes in lending management, 5) changes in volume and the severity of past due loans, 6) changes in the quality of the loan review system, 7) changes in the value of underlying collateral, 8) the existence and effect of concentrations of credit and 9) other factors such as the regulatory, legal and competitive environments and events such as natural disasters and pandemics. At December 31, 2023, the ACL on loans included a qualitative adjustment of $37.4 million. Of this amount, $15.2 million was allocated to Sponsor Finance loans due to their unsecured nature. Gross charge-offs by loan class and year of origination is presented in the following table: December 31, 2023 Term Loans by Origination Year ($ in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Converted to Term Loans Revolving Loans Total Commercial and industrial $ 600 $ 2,999 $ 1,940 $ 2,539 $ — $ — $ 12,533 $ 15,178 $ 35,789 Real estate: Commercial - investor owned — — 170 — 4,692 7 — — 4,869 Construction and land development — — — — — 9 — — 9 Residential — — — — — 480 176 — 656 Other — 3 459 — — 319 12 — 793 Total charge-offs by origination year $ 600 $ 3,002 $ 2,569 $ 2,539 $ 4,692 $ 815 $ 12,721 $ 15,178 $ 42,116 Total gross charge-offs by performing status 1,099 Total gross charge-offs $ 43,215 The following tables present the recorded investment in nonperforming loans by category, excluding government guaranteed balances: December 31, 2023 ($ in thousands) Non-accrual Restructured, accruing Loans over 90 days past due and still accruing interest Total nonperforming loans Nonaccrual loans with no allowance Commercial and industrial $ 7,641 $ — $ 115 $ 7,756 $ 6,179 Real estate: Commercial - investor owned 20,404 — — 20,404 19,466 Commercial - owner occupied 12,972 — 363 13,335 9,010 Construction and land development 1,205 — 64 1,269 464 Residential 959 — — 959 959 Other — — 5 5 — Total $ 43,181 $ — $ 547 $ 43,728 $ 36,078 December 31, 2022 ($ in thousands) Non-accrual Restructured, accruing Loans over 90 days past due and still accruing interest Total nonperforming loans Nonaccrual loans with no allowance Commercial and industrial $ 4,373 $ — $ 70 $ 4,443 $ 1,047 Real estate: Commercial - investor owned 3,023 — — 3,023 — Commercial - owner occupied 1,177 — — 1,177 — Construction and land development 1,192 — — 1,192 1,192 Residential — 73 — 73 — Other 1 — 72 73 — Total $ 9,766 $ 73 $ 142 $ 9,981 $ 2,239 The nonperforming loan balances at December 31, 2023 and December 31, 2022 exclude government guaranteed balances of $10.7 million and $6.7 million, respectively. Interest income recognized on nonaccrual loans was immaterial in the years ending December 31, 2021, 2022 and 2023. Collateral-dependent nonperforming loans by class of loan is presented as of the dates indicated: December 31, 2023 Type of Collateral ($ in thousands) Commercial Real Estate Residential Real Estate Blanket Lien Other Commercial and industrial $ 527 $ 1,864 $ 344 $ 3,445 Real estate: Commercial - investor owned 19,467 — — — Commercial - owner occupied 5,904 1,638 1,831 — Construction and land development 528 741 — — Residential — 959 — — Total $ 26,426 $ 5,202 $ 2,175 $ 3,445 December 31, 2022 Type of Collateral ($ in thousands) Commercial Real Estate Residential Real Estate Blanket Lien Commercial and industrial $ — $ — $ 1,047 Real estate: Commercial - investor owned 2,238 785 — Commercial - owner occupied 1,177 — — Construction and land development — 1,192 — Residential — 73 — Total $ 3,415 $ 2,050 $ 1,047 The aging of the recorded investment in past due loans by class and category is presented as of the dates indicated. December 31, 2023 ($ in thousands) 30-89 Days 90 or More Total Current Total Commercial and industrial $ 3,445 $ 9,037 $ 12,482 $ 4,661,574 $ 4,674,056 Real estate: Commercial - investor owned 1,905 18,395 20,300 2,432,102 2,452,402 Commercial - owner occupied 8,409 14,142 22,551 2,321,566 2,344,117 Construction and land development 770 1,908 2,678 757,444 760,122 Residential 1,620 959 2,579 369,416 371,995 Other 82 4 86 285,567 285,653 Loans, before unearned loan fees 16,231 44,445 60,676 10,827,669 10,888,345 Unearned loan fees, net (4,227) Total $ 10,884,118 December 31, 2022 ($ in thousands) 30-89 Days 90 or More Total Current Total Commercial and industrial $ 555 $ 2,373 $ 2,928 $ 3,857,036 $ 3,859,964 Real estate: Commercial - investor owned — 1,135 1,135 2,356,685 2,357,820 Commercial - owner occupied 8,628 164 8,792 2,261,759 2,270,551 Construction and land development 9 1,192 1,201 610,364 611,565 Residential 1,227 — 1,227 394,310 395,537 Other 18 72 90 248,900 248,990 Loans, before unearned loan fees 10,437 4,936 15,373 9,729,054 9,744,427 Unearned loan fees, net (7,289) Total $ 9,737,138 The allowance for credit losses incorporates an estimate of lifetime expected credit losses and is recorded on each asset upon origination or acquisition. The starting point for the estimate of the allowance for credit losses is historical loss information, which includes losses from modifications of receivables to borrowers experiencing financial difficulty. The Company uses a probability of default and loss given default model to determine the allowance for credit losses. An assessment of whether a borrower is experiencing financial difficulty is made on the date of a modification. The effect of most modifications made to borrowers experiencing financial difficulty is already included in the allowance for credit losses because of the measurement methodologies used to estimate the allowance. The most common concession the Company provides to borrowers experiencing financial difficulty is a term extension. In limited circumstances, the Company may modify loans by providing principal forgiveness or an interest rate reduction. When principal forgiveness is provided, the amortized cost basis of the asset is written off against the allowance for credit losses. The amount of the principal forgiveness is deemed to be uncollectible; therefore, that portion of the loan is written off, resulting in a reduction of the amortized cost basis and a corresponding adjustment to the allowance for credit losses. In some cases, the Company will modify a loan by providing multiple types of concessions. Typically, one type of concession, such as a term extension, is granted initially. If the borrower continues to experience financial difficulty, another concession, such as an interest rate reduction or principal forgiveness, may be granted. The following table shows the recorded investment at the end of the reporting period for loans modified to borrowers experiencing financial difficulty, disaggregated by loan class and type of concession granted: Term Extension Twelve months ended ($ in thousands) December 31, 2023 Percent of Total Loan Class Commercial and industrial $ 39,437 0.84 % Real estate: Commercial - investor owned 9,411 0.38 % Commercial - owner occupied 94 — % Construction and land development 1,137 0.15 % Residential 7,601 2.04 % Other 4 — % Total $ 57,684 The following table summarizes the financial impacts of loan modifications made to borrowers experiencing financial difficulty and outstanding at the end of the year: Weighted Average Term Extension (in months) Twelve months ended December 31, 2023 Commercial and industrial 5 Real estate: Commercial - investor owned 4 Commercial - owner occupied 3 Construction and land development 7 Residential 3 Other 48 The following table shows the aging of the recorded investment in modified loans by class: December 31, 2023 ($ in thousands) Current 30-89 Days 90 or More Total Commercial and industrial $ 39,187 $ 250 $ — $ 39,437 Real estate: Commercial - investor owned 9,411 — — 9,411 Commercial - owner occupied — 94 — 94 Construction and land development 1,137 — — 1,137 Residential 7,527 74 — 7,601 Other — 4 — 4 Total $ 57,262 $ 422 $ — $ 57,684 As of December 31, 2023, no loans experienced a default subsequent to being granted a term extension modification in the prior twelve months. Default is defined as movement to nonperforming status, foreclosure or charge-off. As of December 31, 2023, the Company allocated an immaterial amount in specific reserves to loans that have been restructured. The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt, such as current financial information, payment experience, credit documentation, and current economic factors among other factors. This analysis is performed on a quarterly basis. The Company uses the following definitions for risk ratings: • Grades 1, 2, and 3 – Includes loans to borrowers with a continuous record of strong earnings, sound balance sheet condition and capitalization, ample liquidity with solid cash flow, and whose management team has experience and depth within their industry. • Grade 4 – Includes loans to borrowers with positive trends in profitability, satisfactory capitalization and balance sheet condition, and sufficient liquidity and cash flow. • Grade 5 – Includes loans to borrowers that may display fluctuating trends in sales, profitability, capitalization, liquidity, and cash flow. • Grade 6 – Includes loans to borrowers where an adverse change or perceived weakness has occurred, but may be correctable in the near future. Alternatively, this rating category may also include circumstances where the borrower is starting to reverse a negative trend or condition, or has recently been upgraded from a 7, 8, or 9 rating. • Grade 7 – Special Mention credits are borrowers that have experienced financial setback of a nature that is not determined to be severe or influence ‘ongoing concern’ expectations. Although possible, no loss is anticipated, due to strong collateral and/or guarantor support. • Grade 8 – Substandard credits include those borrowers characterized by significant losses and sustained downward trends in balance sheet condition, liquidity, and cash flow. Repayment reliance may have shifted to secondary sources. Collateral exposure may exist and additional reserves may be warranted. • Grade 9 – Doubtful credits include borrowers that may show deteriorating trends that are unlikely to be corrected. Collateral values may appear insufficient for full recovery, therefore requiring a partial charge-off, or debt renegotiation with the borrower. The borrower may have declared bankruptcy or bankruptcy is likely in the near term. All doubtful rated credits will be on non-accrual. The recorded investment by risk category of the loans by class and year of origination is presented in the following tables as of the dates indicated: December 31, 2023 Term Loans by Origination Year ($ in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Converted to Term Loans Revolving Loans Total Commercial and industrial Pass (1-6) $ 1,567,738 $ 1,052,462 $ 345,292 $ 194,972 $ 123,425 $ 71,205 $ 12,163 $ 1,108,233 $ 4,475,490 Special Mention (7) 52,523 6,845 8,597 544 453 242 272 19,590 89,066 Classified (8-9) 12,824 19,306 1,833 812 339 363 508 45,830 81,815 Total Commercial and industrial $ 1,633,085 $ 1,078,613 $ 355,722 $ 196,328 $ 124,217 $ 71,810 $ 12,943 $ 1,173,653 $ 4,646,371 Commercial real estate-investor owned Pass (1-6) $ 495,131 $ 544,223 $ 492,974 $ 323,175 $ 165,343 $ 236,914 $ 5,222 $ 51,413 $ 2,314,395 Special Mention (7) 3,626 22,725 51,851 1,657 164 5,526 — — 85,549 Classified (8-9) 9,411 1,034 43 15,838 2,831 4,919 48 — 34,124 Total Commercial real estate-investor owned $ 508,168 $ 567,982 $ 544,868 $ 340,670 $ 168,338 $ 247,359 $ 5,270 $ 51,413 $ 2,434,068 Commercial real estate-owner occupied Pass (1-6) $ 407,901 $ 486,701 $ 489,589 $ 301,399 $ 183,872 $ 313,474 $ 5,083 $ 30,036 $ 2,218,055 Special Mention (7) 13,739 2,521 4,652 10,492 5,439 15,833 — 1,493 54,169 Classified (8-9) 3,389 3,413 2,247 3,181 8,878 24,857 5,056 — 51,021 Total Commercial real estate-owner occupied $ 425,029 $ 492,635 $ 496,488 $ 315,072 $ 198,189 $ 354,164 $ 10,139 $ 31,529 $ 2,323,245 Construction real estate Pass (1-6) $ 292,689 $ 325,010 $ 96,426 $ 30,956 $ 1,413 $ 3,408 $ 10 $ 3,700 $ 753,612 Special Mention (7) 42 2,958 1,046 210 123 114 — — 4,493 Classified (8-9) 1,137 704 — — 13 466 — — 2,320 Total Construction real estate $ 293,868 $ 328,672 $ 97,472 $ 31,166 $ 1,549 $ 3,988 $ 10 $ 3,700 $ 760,425 Residential real estate Pass (1-6) $ 59,259 $ 41,956 $ 51,436 $ 30,713 $ 17,793 $ 77,327 $ 1,464 $ 78,351 $ 358,299 Special Mention (7) 322 — — — 75 1,801 — 614 2,812 Classified (8-9) 127 1,073 69 — 30 1,492 74 7,500 10,365 Total residential real estate $ 59,708 $ 43,029 $ 51,505 $ 30,713 $ 17,898 $ 80,620 $ 1,538 $ 86,465 $ 371,476 Other Pass (1-6) $ 10,071 $ 55,923 $ 67,766 $ 53,569 $ 9,382 $ 19,657 $ 7 $ 28,464 $ 244,839 Special Mention (7) — — 14,472 — — — — 11,645 26,117 Classified (8-9) — — — — — 8 — — 8 Total Other $ 10,071 $ 55,923 $ 82,238 $ 53,569 $ 9,382 $ 19,665 $ 7 $ 40,109 $ 270,964 Total loans classified by risk category $ 2,929,929 $ 2,566,854 $ 1,628,293 $ 967,518 $ 519,573 $ 777,606 $ 29,907 $ 1,386,869 $ 10,806,549 Total loans classified by performing status 77,569 Total loans $ 10,884,118 December 31, 2022 Term Loans by Origination Year ($ in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Converted to Term Loans Revolving Loans Total Commercial and industrial Pass (1-6) $ 1,403,381 $ 635,275 $ 332,740 $ 172,127 $ 62,729 $ 66,152 $ 8,388 $ 964,592 $ 3,645,384 Special Mention (7) 37,048 10,836 13,858 423 7,995 4,102 — 72,944 147,206 Classified (8-9) 16,176 4,457 1,627 24 166 183 — 21,349 43,982 Total Commercial and industrial $ 1,456,605 $ 650,568 $ 348,225 $ 172,574 $ 70,890 $ 70,437 $ 8,388 $ 1,058,885 $ 3,836,572 Commercial real estate-investor owned Pass (1-6) $ 667,107 $ 584,644 $ 392,402 $ 240,033 $ 115,530 $ 202,661 $ 1,457 $ 53,051 $ 2,256,885 Special Mention (7) 18,844 5,751 23,502 11,605 — 13,063 — — 72,765 Classified (8-9) 1,823 — 465 953 193 6,092 49 — 9,575 Total Commercial real estate-investor owned $ 687,774 $ 590,395 $ 416,369 $ 252,591 $ 115,723 $ 221,816 $ 1,506 $ 53,051 $ 2,339,225 Commercial real estate-owner occupied Pass (1-6) $ 539,610 $ 555,690 $ 362,150 $ 232,335 $ 123,095 $ 270,613 $ — $ 57,308 $ 2,140,801 Special Mention (7) 11,164 3,801 16,856 4,455 13,043 9,009 — 800 59,128 Classified (8-9) — 1,572 3,483 8,910 15,873 11,387 — — 41,225 Total Commercial real estate-owner occupied $ 550,774 $ 561,063 $ 382,489 $ 245,700 $ 152,011 $ 291,009 $ — $ 58,108 $ 2,241,154 Construction real estate Pass (1-6) $ 290,146 $ 232,998 $ 53,129 $ 2,909 $ 2,061 $ 8,480 $ — $ 1,769 $ 591,492 Special Mention (7) 17,331 — 681 146 111 106 — — 18,375 Classified (8-9) 1,192 — — 14 471 21 — — 1,698 Total Construction real estate $ 308,669 $ 232,998 $ 53,810 $ 3,069 $ 2,643 $ 8,607 $ — $ 1,769 $ 611,565 Residential real estate Pass (1-6) $ 63,317 $ 60,910 $ 48,796 $ 20,943 $ 11,259 $ 88,795 $ 579 $ 96,304 $ 390,903 Special Mention (7) 331 — — 79 352 781 — — 1,543 Classified (8-9) 121 73 — 53 1,102 994 — 5 2,348 Total residential real estate $ 63,769 $ 60,983 $ 48,796 $ 21,075 $ 12,713 $ 90,570 $ 579 $ 96,309 $ 394,794 Other Pass (1-6) $ 38,753 $ 88,613 $ 56,252 $ 10,556 $ 20,508 $ 10,796 $ — $ 9,536 $ 235,014 Special Mention (7) — — — — — — — — — Classified (8-9) — — — 4 3 11 3 4 25 Total Other $ 38,753 $ 88,613 $ 56,252 $ 10,560 $ 20,511 $ 10,807 $ 3 $ 9,540 $ 235,039 Total loans classified by risk category $ 3,106,344 $ 2,184,620 $ 1,305,941 $ 705,569 $ 374,491 $ 693,246 $ 10,476 $ 1,277,662 $ 9,658,349 Total loans classified by performing status 78,789 Total loans $ 9,737,138 In the tables above, loan originations in 2023 and 2022 with a classification of “special mention” or “classified” primarily represent renewals or modifications initially underwritten and originated in prior years. For certain loans the Company evaluates credit quality based on the aging status. The following tables present the recorded investment in loans based on payment activity as of the dates indicated: December 31, 2023 ($ in thousands) Performing Non Performing Total Commercial and industrial $ 26,076 $ 112 $ 26,188 Real estate: Commercial - investor owned 17,885 — 17,885 Commercial - owner occupied 28,373 — 28,373 Residential 712 — 712 Other 4,406 5 4,411 Total $ 77,452 $ 117 $ 77,569 December 31, 2022 ($ in thousands) Performing Non Performing Total Commercial and industrial $ 23,240 $ 70 $ 23,310 Real estate: Commercial - investor owned 18,595 — 18,595 Commercial - owner occupied 29,397 — 29,397 Residential 743 — 743 Other 6,672 72 6,744 Total $ 78,647 $ 142 $ 78,789

Leases

Leases	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Leases	LEASES Lessee Arrangements The Company has banking and limited-service facilities, data centers, and certain equipment under lease agreements. Most of the leases expire between 2024 and 2028 and include one or more renewal options for up to 5 years. Five leases expire between 2030 and 2034. All leases are classified as operating leases. For the year ended December 31, ($ in thousands) 2023 2022 Operating lease cost $ 5,628 $ 5,868 Short-term lease cost 491 814 Total lease cost $ 6,119 $ 6,682 Payments on operating leases included in the measurement of lease liabilities during the twelve months ended December 31, 2023 and 2022 totaled $5.5 million and $5.8 million, respectively. Right-of-use assets obtained in exchange for lease obligations totaled $15.6 million and $9.5 million during the twelve months ended December 31, 2023 and 2022, respectively. The additions in 2023 and 2022 were primarily from lease renewals. Supplemental balance sheet information related to leases is as follows: ($ in thousands) December 31, 2023 December 31, 2022 Operating lease right-of-use assets, included in other assets $ 25,406 $ 17,355 Operating lease liabilities, included in other liabilities 28,635 18,038 Operating leases Weighted average remaining lease term 7 years 5 years Weighted average discount rate 3.9 % 2.5 % Maturities of operating lease liabilities are as follows: ($ in thousands) Year Amount 2024 $ 5,378 2025 5,586 2026 5,682 2027 4,442 2028 2,979 Thereafter 9,011 Total operating lease liabilities, payments 33,078 Less: present value adjustment 4,443 Operating lease liabilities $ 28,635 Lessor Arrangements The Company leases office space to a third party through an operating lease. This lease has remaining lease terms of two years. Lessor income was $1.8 million and $1.9 million for the twelve months en

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	DERIVATIVE FINANCIAL INSTRUMENTS Risk Management Objective of Using Derivatives The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s loans and borrowings. The Company does not enter into derivative financial instruments for trading purposes. Cash Flow Hedges of Interest Rate Risk The Company’s objectives in using interest rate derivatives are to add stability to interest income and expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. For hedges of the Company’s variable-rate loans, interest rate swaps designated as cash flow hedges involve the receipt of fixed amounts and the Company making variable rate payments. In the fourth quarter 2022, the Company executed a cash flow hedge to reduce a portion of variability in cash flows on the Company’s prime based loan portfolio. The interest rate swap has a notional value of $100.0 million, that effectively fixes the interest rate at 6.63% for the notional amount and has a maturity date of January 1, 2028. In January 2023, the Company entered into another hedge on the prime based loan portfolio with a notional value of $50.0 million, that effectively fixes the interest rate at 6.56% for the notional amount and has a maturity date of February 1, 2027. In addition, the Company executed a prime based interest rate collar in the fourth quarter of 2022 with a notional amount of $100.0 million. The collar includes a cap of 8.14% and a floor of 5.25%. This transaction, commonly referred to as a zero cost collar, involves the Company selling an interest rate cap where payments will be made when the index exceeds the cap rate, and the purchase of a floor where payments will be received if the index falls below the floor. The collar matures on October 1, 2029. For hedges of the variable-rate liabilities, interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The Company has executed a series of cash flow hedges to fix the effective interest rate for payments due on $62.0 million of junior subordinated debentures to a weighted-average-fixed rate o f 2.62%. Select terms of the hedges are as follows: $ in thousands Notional Fixed Rate Maturity Date $15,465 2.60% March 15, 2024 $14,433 2.60% March 30, 2024 $18,558 2.64% March 15, 2026 $13,506 2.64% March 17, 2026 The gain or loss on derivatives designated and qualified as cash flow hedges of interest rate risk are recorded in accumulated other comprehensive income and subsequently reclassified into interest income or expense in the same period(s) during which the hedged transaction affects earnings. Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest income or expense as interest payments are paid on the Company’s variable-rate loans and debt. During the next twelve months, the Company estimates an additional $0.9 million will be reclassified as a decrease to interest expense and $1.7 million will be reclassified as a decrease to interest income. Non-designated Hedges Derivatives not designated as hedges are not considered speculative and result from a service the Company provides to certain customers. The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting derivatives the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate derivatives associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings as a component of other noninterest income. The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Balance Sheet. Notional Amount Derivative Assets Derivative Liabilities ($ in thousands) December 31, 2023 December 31, 2022 December 31, 2023 December 31, 2022 December 31, 2023 December 31, 2022 Derivatives designated as hedging instruments Interest rate swaps $ 211,962 $ 161,962 $ 1,389 $ 2,348 $ 233 $ 921 Interest rate collar 100,000 100,000 514 — — 48 Total $ 1,903 $ 2,348 $ 233 $ 969 Derivatives not designated as hedging instruments Interest rate swaps $ 779,152 $ 687,902 $ 15,886 $ 20,610 $ 15,951 $ 20,612 The tables below present a gross presentation, the effects of offsetting, and a net presentation of the Company’s financial instruments subject to offsetting. The gross amounts of assets or liabilities can be reconciled to the tabular disclosure of fair value. The tabular disclosure of fair value provides the location that financial assets and liabilities are presented on the Balance Sheet. As of December 31, 2023 Gross Amounts Not Offset in the Statement of Financial Position ($ in thousands) Gross Amounts Recognized Gross Amounts Offset in the Statement of Financial Position Net Amounts of Assets presented in the Statement of Financial Position Financial Instruments Fair Value Collateral Posted Net Amount Assets: Interest rate swaps $ 17,275 $ — $ 17,275 $ 1,105 $ 16,170 $ — Interest rate collar 514 — 514 — — 514 Liabilities: Interest rate swaps $ 16,184 $ — $ 16,184 $ 1,105 $ — $ 15,079 Securities sold under agreements to repurchase 250,197 — 250,197 — 250,197 — As of December 31, 2022 Gross Amounts Not Offset in the Statement of Financial Position ($ in thousands) Gross Amounts Recognized Gross Amounts Offset in the Statement of Financial Position Net Amounts of Assets presented in the Statement of Financial Position Financial Instruments Fair Value Collateral Posted Net Amount Assets: Interest rate swaps $ 22,958 $ — $ 22,958 $ — $ 9,010 $ 13,948 Liabilities: Interest rate swaps $ 21,533 $ — $ 21,533 $ — $ — $ 21,533 Interest rate collar 48 — 48 — — 48 Securities sold under agreements to repurchase 270,773 — 270,773 — 270,773 — As of December 31, 2023, the fair value of counterparty derivatives in a net liability position, which includes accrued interest, related to these agreements was $15.8 million. The company has minimum collateral posting thresholds with certain derivative counterparties and posts collateral related to derivatives in a net liability position. The Company has received cash collateral from counterparties on derivatives that were in a net asset position as noted in the tables above.

Fixed Assets

Fixed Assets	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Fixed Assets	FIXED ASSETS A summary of fixed assets is as follows: December 31, ($ in thousands) 2023 2022 Land $ 11,716 $ 12,362 Buildings and leasehold improvements 50,720 50,243 Furniture, fixtures and equipment 21,526 19,569 83,962 82,174 Less accumulated depreciation and amortization 41,281 39,189 Total fixed assets $ 42,681 $ 42,985 Depreciation and amortization of fixed assets included in noninterest expense amounted to $5.1 million, $5.6 million, and $6.1 million in 2023, 2022, and 2021, respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	GOODWILL AND INTANGIBLE ASSETS The Company’s goodwill was $365.2 million for the years ending December 31, 2023 and 2022, respectively. The table below presents a summary of intangible assets: ($ in thousands) Years ended December 31, 2023 2022 Core deposit intangible, net, beginning of year $ 16,919 $ 22,286 Amortization (4,601) (5,367) Core deposit intangible, net, end of year $ 12,318 $ 16,919 Amortization expense on the core deposit intangibles was $4.6 million, $5.4 million, and $5.7 million for the years ended December 31, 2023, 2022, and 2021, respectively. The core deposit intangibles are being amortized over a 10-year period. The following table reflects the amortization schedule for the core deposit intangible at December 31, 2023. Year Core Deposit Intangible ($ in thousands) 2024 $ 3,834 2025 3,068 2026 2,301 2027 1,535 2028 953 After 2028 627 $ 12,318

Deposits

Deposits	12 Months Ended
	Dec. 31, 2023
Maturities of Time Deposits [Abstract]
Deposits	DEPOSITS Following is a summary of certificates of deposit maturities at December 31, 2023: ($ in thousands) Brokered Customer Total Less than 1 year $ 387,609 $ 714,213 $ 1,101,822 Greater than 1 year and less than 2 years 95,150 61,365 156,515 Greater than 2 years and less than 3 years — 6,073 6,073 Greater than 3 years and less than 4 years — 2,946 2,946 Greater than 4 years and less than 5 years — 1,291 1,291 Greater than 5 years — 4,267 4,267 $ 482,759 $ 790,155 $ 1,272,914 Certificates of deposit balances over the FDIC insurance limit of $250,000 were $234.6 million as of December 31, 2023. At December 31, 2023, deposit accounts of executive officers and directors, or to entities in which such individuals had beneficial interests as a shareholder, officer, or director totaled $2.6 million. The Company is a participant in certain networks that offer deposit placement services on a reciprocal basis that qualify large deposits for FDIC insurance. The Company had $91.7 million and $10.6 million of certificates of deposits, and $1.1 billion and $195.1 million of demand deposits in these reciprocal accounts at December 31, 2023 and 2022, respectively. At December 31, 2023 and 2022, overdraft deposits of $1.6 million and $3.2 million, respectively, were reclassified to loans.

Subordinated Debentures and Not

Subordinated Debentures and Notes	12 Months Ended
	Dec. 31, 2023
Subordinated Borrowings [Abstract]
Subordinated Debentures and Notes	SUBORDINATED DEBENTURES AND NOTES The following table summarizes the Company’s subordinated debentures at December 31: Amount Maturity Date Initial Call Date (1) Interest Rate ($ in thousands) 2023 2022 EFSC Clayco Statutory Trust I $ 3,196 $ 3,196 December 17, 2033 December 17, 2008 Floats 3 month term SOFR + 2.85% EFSC Capital Trust II 5,155 5,155 June 17, 2034 June 17, 2009 Floats 3 month term SOFR + 2.65% EFSC Statutory Trust III 11,341 11,341 December 15, 2034 December 15, 2009 Floats 3 month term SOFR + 1.97% EFSC Clayco Statutory Trust II 4,124 4,124 September 15, 2035 September 15, 2010 Floats 3 month term SOFR + 1.83% EFSC Statutory Trust IV 10,310 10,310 December 15, 2035 December 15, 2010 Floats 3 month term SOFR + 1.44% EFSC Statutory Trust V 4,124 4,124 September 15, 2036 September 15, 2011 Floats 3 month term SOFR + 1.60% EFSC Capital Trust VI 14,433 14,433 March 30, 2037 March 30, 2012 Floats 3 month term SOFR + 1.60% EFSC Capital Trust VII 4,124 4,124 December 15, 2037 December 15, 2012 Floats 3 month term SOFR + 2.25% JEFFCO Stat Trust I 7,732 7,732 February 22, 2031 February 22, 2011 Fixed 10.20% JEFFCO Stat Trust II (2) 4,604 4,550 March 17, 2034 March 17, 2009 Floats 3 month term SOFR + 2.75% Trinity Capital Trust III (2) 5,473 5,406 September 8, 2034 September 8, 2009 Floats 3 month term SOFR + 2.70% Trinity Capital Trust IV 10,310 10,310 November 23, 2035 August 23, 2010 Fixed 6.88% Trinity Capital Trust V (2) 8,195 8,032 December 15, 2036 September 15, 2011 Floats 3 month term SOFR + 1.65% Total junior subordinated debentures 93,121 92,837 5.75% Fixed-to-floating rate subordinated notes 63,250 63,250 June 1, 2030 June 1, 2025 Fixed 5.75% until June 1, 2025, then floats Benchmark rate (3 month term SOFR) + 5.66% Debt issuance costs (387) (654) Total fixed-to-floating rate subordinated notes 62,863 62,596 Total subordinated debentures and notes $ 155,984 $ 155,433 (1) Callable each quarter after initial call date. (2) Purchase accounting adjustments are reflected in the balance and also impact the effective interest rate. The Company has 13 unconsolidated statutory business trusts. These trusts issued preferred securities that were sold to third parties. The sole purpose of the trusts was to invest the proceeds in junior subordinated debentures of the Company that have terms identical to the trust preferred securities. The subordinated debentures, which are the sole assets of the trusts, are subordinate and junior in right of payment to all present and future senior and subordinated indebtedness and certain other financial conditions of the Company. The Company fully and unconditionally guarantees each trust’s securities obligations. Under current regulations, the trust preferred securities are included in tier 1 capital for regulatory capital purposes, subject to certain limitations. The trust preferred securities are redeemable in whole or in part on or after their respective call dates. Mandatory redemption dates may be shortened if certain conditions are met. The securities are classified as subordinated debentures in the Company’s consolidated balance sheets. Interest on the subordinated debentures held by the trusts is recorded as interest expense in the Company’s Consolidated Statements of Income. The Company’s investment in these trusts of $2.9 million at December 31, 2023 is included in other investments in the consolidated balance sheets. The Company has fixed the interest rate on a portion of its junior subordinated debentures through a series of interest rate swaps. For further discussion of the interest rate swaps and the corresponding terms, see “Note 6 – Derivative Financial Instruments.” On November 1, 2016, the Company issued $50 million of fixed-to-floating rate subordinated notes. The notes initially bore a fixed annual interest rate of 4.75%, with interest payable semiannually in arrears on May 1 and November 1 of each year, commencing May 1, 2017. On November 1, 2021, the Company redeemed the $50.0 million of subordinated debentures at par. A loss of $0.7 million on the redemption was recognized for the write-off of unamortized debt issuance costs.

Federal Home Loan Bank Advances

Federal Home Loan Bank Advances	12 Months Ended
	Dec. 31, 2023
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
Federal Home Loan Bank Advances	FEDERAL HOME LOAN BANK ADVANCES FHLB advances are collateralized by 1-4 family residential real estate loans, business loans, and certain commercial real estate loans. At December 31, 2023 and 2022, the carrying value of the loans pledged to the FHLB of Des Moines was $1.9 billion and $1.4 billion, respectively. The loans are pledged to the secured line of credit to maintain the borrowing base, which had availability of approximately $1.0 billion at December 31, 2023. The following table summarizes the Company’s FHLB advances at December 31: 2023 2022 ($ in thousands) Outstanding Balance Weighted Rate Outstanding Balance Weighted Rate Non-amortizing fixed advance $ — — % $ 100,000 4.57 %

Other Borrowings

Other Borrowings	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Other Borrowings	OTHER BORROWINGS Securities Sold Under Agreement to Repurchase The Company enters into sales of securities under agreements to repurchase. The agreements are transacted with deposit customers and are utilized as an overnight investment product. The amounts received under these agreements represent short-term borrowings and are reflected as a liability in the consolidated balance sheets. The securities underlying these agreements are included in investment securities in the Consolidated Balance Sheets. The Company has no control over the market value of the securities, which fluctuates due to market conditions. However, the Company is obligated to promptly transfer additional securities if the market value of the securities falls below the repurchase agreement price. The Company manages this risk by maintaining an unpledged securities portfolio that it believes is sufficient to cover a decline in the market value of the securities sold under agreements to repurchase. A summary of securities sold under agreements to repurchase is as follows: December 31, ($ in thousands) 2023 2022 Securities sold under agreement to repurchase $ 250,197 $ 270,773 Average balance during the year 168,745 211,039 Maximum balance outstanding at any month-end 250,197 284,269 Average interest rate during the year 2.16 % 0.24 % Average interest rate at December 31 3.56 % 1.44 % Federal Reserve Line The Bank also has a line with the Federal Reserve Bank of St. Louis which provides additional liquidity to the Company. As of December 31, 2023, $2.5 billion was available under this line. Included in this line is $215.0 million related to the Bank Term Funding program. On January 24, 2024, the Federal Reserve announced that the program would cease making new loans on March 11, 2024. This line is secured by a pledge of certain eligible loans and securities aggregating $2.9 billion. There were no amounts drawn on the Federal Reserve line of credit as of December 31, 2023. Other Borrowings The Bank has $36.2 million of borrowings from various entities related to New Market Tax Credit investments. These notes have remaining terms that range from 25-30 years. These notes have an interest rate of 1.0% and are generally interest only for the first 7 years. Revolving Credit Line In February 2016, the Company entered into a senior unsecured revolving credit agreement (the “Revolving Agreement”) with another bank. The Revolving Agreement has a one-year term, maturing on February 22, 2024, allows for borrowings up to $25 million, and had an interest rate of one-month Term SOFR plus 136 basis points until February 2024. A fee of 0.30% annually is assessed against the unused commitment. The proceeds can be used for general corporate purposes. The Revolving Agreement is subject to ongoing compliance with a number of customary affirmative and negative covenants as well as specified financial covenants. The revolving credit line was not accessed in 2023 or 2022. Term Loan In February 2019, the Company entered into a five year, $40.0 million unsecured term loan agreement (the “Term Loan”) with another bank with the proceeds primarily used to fund the company’s cash portion of an acquisition in 2019. The interest rate was one-month LIBOR plus 125 basis points until February 2022. In February 2022, the interest rate on the Term Loan was amended to one-month Term SOFR plus 136 basis points. The term loan agreement matures in February 2024. A summary of the Term Loan is as follows: December 31, ($ in thousands) 2023 2022 Term Loan $ 11,429 $ 17,143 Average balance during the year 14,959 20,681 Maximum balance outstanding at any month-end 17,143 22,857 Weighted average interest rate during the year 6.44 % 2.94 % Average interest rate at December 31 6.70 % 5.48

Litigation and Other Contingenc

Litigation and Other Contingencies	12 Months Ended
	Dec. 31, 2023
Other Liabilities Disclosure [Abstract]
Litigation and Other Contingencies	LITIGATION AND OTHER CONTINGENCIES The Company and its subsidiaries are, from time to time, parties to various legal proceedings arising out of their businesses. Management believes there are no such legal proceedings pending or threatened against the Company or its subsidiaries in the ordinary course of business, directly, indirectly, or in the aggregate that, if determined adversely, would have a material adverse effect on the business, consolidated financial condition, results of operations or cash flows of the Company or any of its subsidiaries.

Regulatory Capital

Regulatory Capital	12 Months Ended
	Dec. 31, 2023
Regulated Operations [Abstract]
Regulatory Capital	REGULATORY CAPITAL Quantitative measures established by regulation to ensure capital adequacy require the Bank to maintain minimum ratios (set forth in the following table) of total, tier 1, and common equity tier 1 capital to risk-weighted assets, and of tier 1 capital to average assets. Management believes, as of December 31, 2023 and 2022, that the Company met all capital adequacy requirements to which it is subject. As of December 31, 2023 and 2022, the Bank was categorized as “well-capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well-capitalized” the Bank must maintain minimum total risk-based capital, tier 1 risk-based capital, common equity tier 1 risk-based capital, and tier 1 leverage ratios as set forth in the following table. In addition, the Company must maintain an additional CCB above the regulatory minimum ratio requirements. The CCB is designed to insulate banks from periods of stress and impose constraints on dividends, share repurchases and discretionary bonus payments when capital levels fall below prescribed levels. The capital ratios are presented in the following table: December 31, 2023 December 31, 2022 EFSC Bank EFSC Bank To Be Well-Capitalized Minimum Ratio Common Equity Tier 1 Capital to Risk Weighted Assets 11.3 % 12.2 % 11.1 % 12.1 % 6.5 % 7.0 % Tier 1 Capital to Risk Weighted Assets 12.7 % 12.2 % 12.6 % 12.1 % 8.0 % 8.5 % Total Capital to Risk Weighted Assets 14.2 % 13.2 % 14.2 % 13.1 % 10.0 % 10.5 % Leverage Ratio (Tier 1 Capital to Average Assets) 11.0 % 10.6 % 10.9 % 10.5 % 5.0 % N/A

Shareholders' Equity and Compen

Shareholders' Equity and Compensation Plans	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Shareholders' Equity and Compensation Plans	SHAREHOLDERS’ EQUITY AND COMPENSATION PLANS Shareholders’ Equity Common Stock At December 31, 2023 and 2022, the Company has reserved the following shares of its authorized but unissued common stock for possible future issuance in connection with the following: December 31, 2023 December 31, 2022 Outstanding performance units (maximum issuance) 273,202 209,702 Outstanding RSU’s 290,141 269,868 Outstanding options 333,608 222,032 2018 Stock Incentive Plan 732,427 342,157 Non-Management Director Plan 130,162 55,878 2018 Employee Stock Purchase Plan 447,655 515,941 Total 2,207,195 1,615,578 Common Stock Repurchase Plan In April 2021, the Company’s board of directors authorized the repurchase of up to two million shares of the Company’s common stock. As of May 2022, this plan was depleted. In May 2022, the Company’s board of directors authorized the repurchase of up to two million shares of the Company’s common stock. The repurchases may be made in open market or privately negotiated transactions and the stock repurchase program will remain in effect until fully utilized or until modified, superseded or terminated. At December 31, 2023, there were two million shares available for repurchase under the plan. Preferred Stock The Company has 5,000,000 shares of authorized preferred stock with a par value of $0.01 with 75,000 shares issued and outstanding at the end of 2023 and 2022. The Board of Directors has the right to set for each series of preferred stock, subject to the laws of the State of Delaware, the dividend rate, conversion and redemption terms, voting rights and liquidation preferences, among others. In the fourth quarter 2021, the Company issued and sold 3,000,000 depositary shares, each representing 1/40th interest in a share of the Company’s 5% Noncumulative, Perpetual Preferred Stock, Series A (“Series A Preferred Stock”), totaling $72.0 million, net of issuance costs. The depositary shares trade under the ticker “EFSCP”. The Series A Preferred Stock may be redeemed at the Company’s option, subject to prior regulatory approval, in whole or in part on any dividend payment date on or after December 15, 2026 or within 90 days following a regulatory capital event, as defined in the offering documents. If any Series A Preferred Stock are redeemed, a proportionate number of depositary shares will also be redeemed. Dividends The Company’s ability to pay dividends to its shareholders is generally dependent upon the payment of dividends by the Bank to the parent company. The Bank cannot pay dividends to the extent it would be deemed undercapitalized by the FDIC after making such dividend. Preferred stock dividends, when and if declared by the board of directors, are payable, quarterly in arrears, on March 15, June 15, September 15 and December 15 of each year. If dividends on the Series A Preferred stock have not been declared or paid in six quarterly periods, whether or not consecutive, the number of directors on the board will automatically be increased by two and the holders of the Series A preferred stock will be entitled to vote for the additional directors. Quarterly dividends have been declared and paid in all periods since the preferred stock was issued. Dividends on the Company’s capital stock are prohibited under the terms of the junior subordinated debenture agreements, see “Note 10 – Subordinated Debentures and Notes,” if the Company is in continuous default on its payment obligations to the capital trusts, has elected to defer interest payments on the debentures or extends the interest payment period. Furthermore, unless dividends on all outstanding shares of the Series A Preferred Stock for the most recently completed dividend period have been paid or declared, dividends on, and repurchases of, common stock is prohibited. At December 31, 2023, the Company was not in default on any of the junior subordinated debenture issuances or preferred stock. Accumulated Other Comprehensive Income (Loss) The following table presents the changes in accumulated other comprehensive income (loss) after-tax by component: ($ in thousands) Net Unrealized Gain (Loss) on Available-for-Sale Debt Securities Unamortized Gain (Loss) on Held-to-Maturity Securities Net Unrealized Gain (Loss) on Cash Flow Hedges Total Balance, December 31, 2020 $ 22,320 $ 19,308 $ (4,508) $ 37,120 Net change (17,049) (3,624) 2,330 (18,343) Balance, December 31, 2021 $ 5,271 $ 15,684 $ (2,178) $ 18,777 Net change (149,623) (2,696) 3,210 (149,109) Transfer from available-for-sale to held-to-maturity (197) 197 — — Balance, December 31, 2022 $ (144,549) $ 13,185 $ 1,032 $ (130,332) Net change 31,705 (2,605) 217 29,317 Balance, December 31, 2023 $ (112,844) $ 10,580 $ 1,249 $ (101,015) The following table presents the pre-tax and after-tax changes in the components of other comprehensive income: 2023 2022 2021 ($ in thousands) Pre-tax Tax effect After-tax Pre-tax Tax effect After-tax Pre-tax Tax effect After-tax Change in unrealized gain (loss) on available-for-sale securities $ 42,988 $ 10,833 $ 32,155 $ (200,030) $ (50,407) $ (149,623) $ (22,701) $ (5,652) $ (17,049) Reclassification of gain on sale of available-for-sale securities(a) (601) (151) (450) — — — — — — Reclassification of gain on held-to-maturity securities(a) (3,483) (878) (2,605) (3,605) (909) (2,696) (4,672) (1,048) (3,624) Change in unrealized gain (loss) on cash flow hedges (656) (165) (491) 3,741 943 2,798 1,533 372 1,161 Reclassification of loss on cash flow hedges(b) 945 237 708 551 139 412 1,543 374 1,169 Total other comprehensive income (loss) $ 39,193 $ 9,876 $ 29,317 $ (199,343) $ (50,234) $ (149,109) $ (24,297) $ (5,954) $ (18,343) (a) The pre-tax amount is reported in noninterest income/expense in the Consolidated Statements of Income. (b) The pre-tax amount is reported in interest income/expense in the Consolidated Statements of Income. Compensation Plans The Company has adopted share-based compensation plans to reward and provide long-term incentive for directors and key employees of the Company including its subsidiaries. These plans provide for the granting of stock, stock options, stock-settled stock appreciation rights, and restricted stock units (“RSUs”), and may contain performance terms for key employees as designated by the Company’s Board of Directors upon the recommendation of the Compensation Committee of the Board. The Company uses authorized and unissued shares to satisfy share award exercises. The total excess income tax benefit (expense) for share-based compensation arrangements was $0.3 million, $0.1 million, and $(0.1) million for the years ended December 31, 2023, 2022, and 2021, respectively. At December 31, 2023, there was $14.5 million of total unrecognized compensation cost related to unvested share-based compensation awards. The cost is expected to be recognized over a weighted-average term of approximately 2 years. The following table summarizes share-based compensation expense: ($ in thousands) 2023 2022 2021 Performance stock units $ 2,879 $ 2,391 $ 1,777 Restricted stock units 5,014 4,156 3,109 Stock options 1,609 916 396 Employee stock purchase plan 644 543 735 Total share-based compensation expense $ 10,146 $ 8,006 $ 6,017 Performance Stock Units The Company has entered into long-term incentive agreements with certain key employees. These awards are conditioned on certain performance criteria and market criteria measured against a group of peer banks over a three-year period for each grant. The awards contain minimum (threshold), target, and maximum (exceptional) performance levels. In the event of a change in control, as defined in the plan, the awards will vest at least at the target level. The amount of the awards is determined at the end of the three-year vesting and performance period. The fair value of performance units issued upon vesting in 2023, 2022, and 2021 were $1.6 million, $0.5 million, and $0.9 million, respectively. Information related to the outstanding grants at December 31, 2023 is shown below: ($ in thousands, except per share data) 2021 - 2023 Cycle 2022 - 2024 Cycle 2023 - 2025 Cycle Shares issuable at target 38,412 41,765 56,424 Maximum shares issuable 76,824 83,530 112,848 Unrecognized compensation cost $ 77 $ 1,001 $ 2,340 Weighted average grant date fair value (per share) $ 47.16 $ 51.91 $ 62.19 Maximum Shares Issuable Outstanding at December 31, 2022 209,702 Granted 112,848 Vested (issued 31,142 shares) (49,348) Outstanding at December 31, 2023 273,202 Restricted Stock Units The Company awards nonvested stock, in the form of RSUs to employees. RSUs generally are subject to continued employment and generally vest ratably over three Various information related to the RSUs is shown below. ($ in thousands) 2023 2022 2021 Total fair value of awards vesting during the year $ 3,894 $ 3,888 $ 2,855 Unrecognized compensation cost 8,438 8,507 4,622 Expected years to recognize unearned compensation 1.7 years 2.0 years 1.9 years Weighted average grant date fair value $ 50.46 $ 47.96 $ 44.01 A summary of the status of the Company’s RSU awards as of December 31, 2023 and changes during the year then ended is presented below. Shares Weighted Average Grant Date Outstanding at December 31, 2022 269,868 $ 46.49 Granted 107,353 50.46 Vested (77,195) 43.60 Forfeited (9,885) 47.65 Outstanding at December 31, 2023 290,141 $ 48.69 Stock Options In determining compensation cost for stock options, the Black-Scholes option-pricing model is used to estimate the fair value on date of grant. The model utilizes several assumptions in its calculations. The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield in effect at the time of the grant. The expected term of options granted is based on the option's vesting schedule and expected exercise patterns and represent the period of time options granted are expected to be outstanding. The expected volatility is based on the historical volatility of the Company's stock and expected term of the option. The dividend yield is determined by annualizing the dividend rate as a percentage of the Company's stock price. The following weighted average assumptions were used for grants issued during the year ended December 31, 2023. Weighted Average Risk Free Interest Rate 4.09% Expected Dividend Yield 1.84% Expected Volatility 34.74% Expected Term (years) 6.3 Non-qualified stock options have been granted to key employees with exercise prices equal to the market price of the Company’s common stock at the date of grant and 10-year contractual terms. Stock options have a vesting schedule of three Following is a summary of stock option activity for 2023. Shares Weighted Weighted Outstanding at December 31, 2022 222,032 $ 46.12 Granted 122,161 54.46 Exercised (909) 45.28 Forfeited (9,676) 48.30 Outstanding at December 31, 2023 333,608 $ 49.11 8.2 years Exercisable at December 31, 2023 53,208 $ 45.30 7.5 years The intrinsic value of options exercised totaled $0.1 million and $0.1 million in 2023 and 2022, respectively. Employee Stock Purchase Plan The Company’s Employee Stock Purchase Plan (“ESPP”) provides its eligible employees with an opportunity to purchase common stock through accumulated payroll contributions. The ESPP provides for shares to be purchased at 85% of the lesser of the stock price at the enrollment date or the exercise date. The maximum number of shares of common stock available for sale under the ESPP is 750,000. In 2023, 2022, and 2021, employees purchased 68,286, 55,123, and 64,826 shares, respectively, and there are 447,655 remaining shares available under the ESPP at December 31, 2023. Stock Plan for Non-Management Directors The Company has adopted a Stock Plan for Non-Management Directors, which provides for issuing up to 400,000 shares of common stock to non-management directors as compensation. At December 31, 2023, there were 108,893 shares of stock available for grant under the Stock Plan for Non-Management Directors, exclusive of 21,269 shares to be issued upon deferral release. Various information related to the Director Plan is shown below. 2023 2022 2021 Shares granted 27,016 23,343 12,998 Weighted average grant date fair value $ 41.31 $ 42.17 $ 46.05 401(k) Plan The Company has a 401(k) savings plan which covers substantially all full-time employees over the age of 21 and matches 100% of the first 6% of employee contributions. The amount charged to expense for the Company’s contributions to the plan was $6.5 million, $5.8 million and $4.9 million for 2023, 2022, and 2021, respectively. Deferred Compensation Plan The Company has a nonqualified deferred compensation plan that permits certain executives to participate and defer up to 25% of their base salary and/or up to 100% of their eligible bonus for a plan year. Participants make an irrevocable election when they elect to participate for a plan year to receive the vested account balance following their retirement date, or at a future date not less than five years after the beginning of the plan year. At December 31, 2023, the Company had a liability of $3.7 million related to the deferred compensation plan.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The components of income tax expense (benefit) for the years ended December 31, are as follows: Year ended December 31, ($ in thousands) 2023 2022 2021 Current: Federal $ 40,471 $ 42,718 $ 29,835 State and local 9,616 11,505 5,198 Total current 50,087 54,223 35,033 Deferred: Federal 283 1,853 870 State and local 2,097 341 (325) Total deferred 2,380 2,194 545 Total income tax expense $ 52,467 $ 56,417 $ 35,578 A reconciliation of expected income tax expense, computed by applying the statutory federal income tax rate to income before income taxes reflected in the Consolidated Statements of Income is as follows: Year ended December 31, ($ in thousands) 2023 2022 2021 Income tax expense at statutory rate $ 51,770 $ 54,487 $ 35,413 Increase (reduction) in income tax resulting from: Tax-exempt interest income, net (4,942) (4,351) (3,198) State and local income taxes, net 9,445 9,767 4,936 Bank-owned life insurance (888) (545) (713) Non-deductible expenses 2,059 926 1,090 Tax benefit of low-income housing tax credit ("LIHTC") investments, net (56) (195) (132) Excess tax benefits (251) (68) 146 Federal tax credits (4,364) (3,661) (1,136) Non-taxable donation to charitable foundation — — (263) Other, net (306) 57 (565) Total income tax expense $ 52,467 $ 56,417 $ 35,578 The net amount recognized as a component of tax expense for tax credits, other tax benefits, and amortization from LIHTC investments recognized per the table above was immaterial for the year ended December 31, 2023, and $0.2 million and $0.1 million for the years ended December 31, 2022, and December 31, 2021, respectively. As of December 31, 2023 and 2022, the carrying value of the investments related to low-income housing tax credits was $17.2 million and $7.3 million, respectively. No impairment losses have been recognized from forfeiture or ineligibility of tax credits or other circumstances during the life of any of the investments. A net deferred income tax asset of $76.7 million and $89.0 million is included in other assets in the consolidated balance sheets at December 31, 2023 and 2022, respectively. The tax effect of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities is as follows: Year ended December 31, ($ in thousands) 2023 2022 Deferred tax assets: Allowance for loan losses $ 33,423 $ 34,507 Loans held-for-sale 4,463 5,917 Other real estate — 179 Deferred compensation 4,746 3,527 Accrued compensation 6,047 6,294 Unrealized losses on securities, net 33,687 44,094 Net operating losses and tax credits 5,544 5,829 Lease liability accrual 7,101 4,545 Other investments 5,341 4,293 Research and experimental expenses 1,944 — Fixed assets 2,341 2,867 Other deferred tax assets 4,823 3,596 Total deferred tax assets 109,460 115,648 Deferred tax liabilities: Acquired loans 2,388 2,212 Intangible assets 8,576 8,676 Right of use asset 6,301 4,374 Other investments 11,834 7,530 Other deferred tax liabilities 841 1,065 Total deferred tax liabilities 29,940 23,857 Net deferred tax asset before valuation allowance 79,520 91,791 Less: valuation allowance 2,812 2,830 Net deferred tax asset $ 76,708 $ 88,961 As part of an acquisition in 2019, the company acquired net operating loss, tax credit, and capital loss deferred tax assets. Net operating losses originated in the years 2012, 2014-2017, and 2019 and will expire in the years between 2032-2037. Tax credit carryforwards originated in years 2010-2015 and will expire in the years between 2030-2035. A valuation allowance is provided on deferred tax assets when it is more likely than not that some portion of the assets will not be realized. The company determined it was more likely than not that some of the acquired net operating loss and tax credit assets would not be realized and has recognized a valuation allowance of $2.8 million at December 31, 2023 and 2022, respectively. The Company and its subsidiaries file income tax returns in the federal jurisdiction and in thirty-two states. The Company is no longer subject to federal, state or local income tax audits by tax authorities for years before 2018, with the exception of 2016 and 2017 being open years by state taxing authorities. Net operating losses generated prior to 2016 that are utilized going forward would still be subject to examination. As of December 31, 2023, the gross amount of unrecognized tax benefits was $3.1 million and the total amount of net unrecognized tax benefits that would impact the effective tax rate, if recognized, was $2.4 million compared to $2.2 million and $2.5 million as of December 31, 2022 and 2021, respectively. The Company believes it is reasonably possible the gross amount of unrecognized benefits will be reduced by approximately $0.4 million as a result of a lapse of statute of limitations in the next 12 months. The Company is under audit by the state of Missouri, and while the Company has concluded it has adequately provided for uncertain tax positions, the outcome of such audits are always uncertain and could result in additional tax expense, though immaterial. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense and classifies such interest and penalties in the liability for unrecognized tax benefits. The amount accrued for interest and penalties was $1.0 million for 2023, $0.6 million as of 2022, and $0.5 million for 2021. The activity in the gross liability for unrecognized tax benefits was as follows: ($ in thousands) 2023 2022 2021 Balance at beginning of year $ 2,724 $ 2,697 $ 3,157 Additions based on tax positions related to the current year 727 683 563 Additions for tax positions of prior years 24 47 436 Settlements for tax positions of prior years — (82) (1,289) Settlements or lapse of statute of limitations (398) (621) (170) Balance at end of year $ 3,077 $ 2,724 $ 2,697

Commitments and Contingent Liab

Commitments and Contingent Liabilities	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	COMMITMENTS AND CONTINGENT LIABILITIES Long-term Lease Commitments See “Note 5 – Leases” in this report for information regarding the Company’s long-term lease commitments. Off-balance-Sheet Commitments The Company issues financial instruments in the normal course of the business of meeting the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. These instruments may involve, to varying degrees, elements of credit and interest rate risk in excess of the amounts recognized in the consolidated balance sheets. The Company’s extent of involvement and maximum potential exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is not more than the contractual amount of these instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for financial instruments included on its consolidated balance sheets. The contractual amounts of off-balance-sheet financial instruments are as follows: ($ in thousands) December 31, 2023 December 31, 2022 Commitments to extend credit $ 2,937,760 $ 3,113,966 Letters of credit 107,082 68,544 Tax credits 3,514 4,075 Limited partnership commitments 32,548 35,090 There was an insignificant amount of unadvanced commitments on impaired loans at December 31, 2023 and December 31, 2022. Other liabilities include an allowance for credit losses on unadvanced commitments of $6.6 million and $12.1 million at December 31, 2023 and 2022, respectively. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments usually have fixed expiration dates or other termination clauses, may have significant usage restrictions, and may require payment of a fee. Of the total commitments to extend credit at December 31, 2023, and December 31, 2022, $191.6 million and $246.5 million, respectively, represent fixed rate loan commitments. Since certain of the commitments may expire without being drawn upon or may be revoked, the total commitment amounts do not necessarily represent future cash obligations. The Company evaluates each customer’s credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the borrower. Collateral held varies, but may include accounts receivable, inventory, premises and equipment, and real estate. Letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. These letters of credit are issued to support contractual obligations of the Company’s customers. The credit risk involved in issuing letters of credit is essentially the same as the risk involved in extending loans to customers. The approximate remaining term of letters of credit range from one month to 9 years at December 31, 2023. The Company also has off-balance sheet commitments for purchases of tax credits and commitments for various capital raises for limited partnership investments .

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS The fair value of an asset or liability is the exchange price that would be received to sell that asset or paid to transfer that liability in an orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for such asset or liability. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability. ASC Topic 820, Fair Value Measurements and Disclosures, establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows: • Level 1 Inputs - Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. • Level 2 Inputs - Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds, credit risks, etc.) or inputs that are derived principally from or corroborated by market data by correlation or other means. • Level 3 Inputs - Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. Fair value on a recurring basis The following table summarizes financial instruments measured at fair value on a recurring basis, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value. December 31, 2023 ($ in thousands) Quoted Prices in Significant Significant Total Fair Assets Securities available-for-sale Obligations of U.S. Government-sponsored enterprises $ — $ 296,446 $ — $ 296,446 Obligations of states and political subdivisions — 432,171 — 432,171 Residential mortgage-backed securities — 700,381 — 700,381 Corporate debt securities — 181,701 — 181,701 U.S. Treasury Bills — 7,574 — 7,574 Total securities available-for-sale — 1,618,273 — 1,618,273 Other investments — 2,941 — 2,941 Derivatives — 17,789 — 17,789 Total assets $ — $ 1,639,003 $ — $ 1,639,003 Liabilities Derivatives $ — $ 16,184 $ — $ 16,184 Total liabilities $ — $ 16,184 $ — $ 16,184 December 31, 2022 ($ in thousands) Quoted Prices in Significant Significant Total Fair Assets Securities available-for-sale Obligations of U.S. Government-sponsored enterprises $ — $ 237,785 $ — $ 237,785 Obligations of states and political subdivisions — 417,444 — 417,444 Residential mortgage-backed securities — 659,404 — 659,404 Corporate debt securities — 12,640 — 12,640 U.S. Treasury Bills — 208,534 — 208,534 Total securities available-for-sale — 1,535,807 — 1,535,807 Other investments — 2,667 — 2,667 Derivative financial instruments — 22,958 — 22,958 Total assets $ — $ 1,561,432 $ — $ 1,561,432 Liabilities Derivative financial instruments $ — $ 21,581 $ — $ 21,581 Total liabilities $ — $ 21,581 $ — $ 21,581 • Securities available-for-sale . Fair values for available-for-sale securities are based upon dealer quotes, market spreads, the U.S. Treasury yield curve, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions at the security level. Changes in fair value are recognized through accumulated other comprehensive income. • Derivatives . Derivatives are reported at fair value utilizing Level 2 inputs. The Company obtains counterparty quotations to value its interest rate swaps and caps. In addition, the Company validates the counterparty quotations with third-party valuation sources. Derivatives with negative fair values are included in Other liabilities in the consolidated balance sheets. Derivatives with positive fair value are included in Other assets in the consolidated balance sheets. Changes in the fair value of client-related derivative instruments are recognized through net income. For the years ended December 31, 2023 and 2022, the gains and losses substantially offset each other due to the Company’s hedging of the client swaps with other bank counterparties. Fair value on a non-recurring basis Certain financial assets and financial liabilities are measured at fair value on a non-recurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). • Individually-evaluated loans . On a quarterly basis, fair value adjustments are recorded as necessary on loans that no longer exhibit risk characteristics similar to other loans to account for (1) partial write-downs based on the current appraised or market-quoted value of the underlying collateral or (2) the full charge-off of the loan carrying value. In some cases, the properties for which market quotes or appraised values have been obtained are located in areas where comparable sales data is limited, outdated, or unavailable. In addition, the Company may adjust the valuations based on other relevant market conditions or information. Accordingly, fair value estimates, including those obtained from real estate brokers or other third-party consultants, for collateral-dependent loans are classified in Level 3 of the valuation hierarchy. Fair value estimates on individually-evaluated loans utilizing a discounted cash flow approach are also classified as Level 3. • Other real estate. These assets are initially reported at fair value, less cost to sell, and subsequently at the lower of cost or fair value, less cost to sell. Fair value is based on third party appraisals of each property and the Company’s judgment of other relevant market conditions. These are considered Level 3 inputs. • Loan servicing asset . The loan servicing asset is included in Other assets on the Company’s consolidated balance sheets and assessed for impairment on a quarterly basis. Market-based cash flow modeling and discounting models specific to the SBA industry are provided by a third-party valuation service and are considered Level 2 inputs. The following tables present financial instruments and non-financial assets still held as of the reporting date measured at fair value on a non-recurring basis. December 31, 2023 (1) (1) (1) (1) ($ in thousands) Total Fair Value Quoted Prices in Active Significant Significant Individually-evaluated loans $ 5,138 $ — $ — $ 5,138 Other real estate 5,736 — — 5,736 Total $ 10,874 $ — $ — $ 10,874 December 31, 2022 (1) (1) (1) (1) ($ in thousands) Total Fair Value Quoted Prices in Active Significant Significant Other real estate 269 — — 269 Loan servicing asset 1,027 — 1,027 — Total $ 1,296 $ — $ 1,027 $ 269 (1) The amounts represent balances measured at fair value during the period and still held as of the reporting date. Carrying amount and fair value Following is a summary of the carrying amounts and fair values of the Company’s financial instruments on the consolidated balance sheets at December 31, 2023 and 2022. This summary excludes certain financial assets and liabilities for which carrying value approximates fair value and financial instruments that are recorded at fair value on a recurring basis disclosed above. Financial instruments for which carrying values approximate fair value include cash and due from banks, federal funds sold, interest bearing deposits, accrued interest receivable/payable, demand, savings and money market deposits. December 31, 2023 December 31, 2022 ($ in thousands) Carrying Amount Estimated fair value Level Carrying Amount Estimated fair value Level Balance sheet assets Securities held-to-maturity $ 750,434 $ 696,647 Level 2 $ 709,915 $ 628,517 Level 2 Other investments 63,255 63,255 Level 2 61,123 61,123 Level 2 Loans held-for-sale 359 359 Level 2 1,228 1,228 Level 2 Loans, net 10,749,347 10,392,551 Level 3 9,600,206 9,328,844 Level 3 State tax credits, held-for-sale 22,115 23,897 Level 3 27,700 28,880 Level 3 Servicing asset 2,861 3,799 Level 2 3,648 3,905 Level 2 Balance sheet liabilities Certificates of deposit $ 1,272,914 $ 1,265,905 Level 3 $ 530,708 $ 512,229 Level 3 Subordinated debentures and notes 155,984 154,354 Level 2 155,433 152,679 Level 2 FHLB advances — — Level 2 100,000 100,004 Level 2 Other borrowings 297,829 274,658 Level 2 324,119 324,119 Level 2 Limitations Fair value estimates are made at a specific point in time based on relevant market information and information about the financial instrument. These estimates are subjective in nature and involve uncertainties and matters of significant judgment, and therefore, cannot be determined with precision. Such estimates include the valuation of loans, goodwill, intangible assets, and other long-lived assets, along with assumptions used in the calculation of income taxes, among others. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using experience and other factors, including the current economic environment. Such estimates and assumptions are adjusted when facts and circumstances dictate. Changing real estate values, illiquid credit markets, volatile equity markets, and changes in consumer spending have combined to increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods. In addition, these estimates do not reflect any premium or discount that could result from offering for sale the Company’s entire holdings of a particular financial instrument at one time. Fair value estimates are based on existing on-balance and off-balance-sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in many of the estimates.

Parent Company Only Condensed F

Parent Company Only Condensed Financial Statements	12 Months Ended
	Dec. 31, 2023
Condensed Financial Information Disclosure [Abstract]
Parent Company Only Condensed Financial Statements	PARENT COMPANY ONLY CONDENSED FINANCIAL STATEMENTS Condensed Balance Sheets December 31, ($ in thousands) 2023 2022 Assets Cash $ 100,418 $ 99,018 Investment in Bank 1,748,260 1,553,657 Investment in nonbank subsidiaries 11,267 16,476 Other assets 27,701 30,312 Total assets $ 1,887,646 $ 1,699,463 Liabilities and Shareholders’ Equity Subordinated debentures and notes $ 155,984 $ 155,433 Notes payable 11,429 17,143 Accounts payable and other liabilities 4,165 4,624 Shareholders' equity 1,716,068 1,522,263 Total liabilities and shareholders' equity $ 1,887,646 $ 1,699,463 Condensed Statements of Income Year ended December 31, ($ in thousands) 2023 2022 2021 Income: Dividends from Bank $ 45,000 $ 75,000 $ 95,000 Dividends from nonbank subsidiaries 4,875 1,700 2,000 Other 7,736 1,086 3,600 Total income 57,611 77,786 100,600 Expenses: Interest expense 10,856 9,825 11,406 Other expenses 8,774 8,580 11,037 Total expenses 19,630 18,405 22,443 Income before taxes and equity in undistributed earnings of subsidiaries 37,981 59,381 78,157 Income tax benefit 2,520 3,585 3,710 Net income before equity in undistributed earnings of subsidiaries 40,501 62,966 81,867 Equity in undistributed earnings of subsidiaries 153,558 140,077 51,188 Net income $ 194,059 $ 203,043 $ 133,055 Condensed Statements of Cash Flows Year ended December 31, ($ in thousands) 2023 2022 2021 Cash flows from operating activities: Net income $ 194,059 $ 203,043 $ 133,055 Adjustments to reconcile net income to net cash provided by operating activities: Share-based compensation 4,439 8,006 6,017 Net income of subsidiaries (203,433) (216,777) (148,188) Dividends from subsidiaries 49,875 76,700 97,000 Other, net (421) 6,102 (16) Net cash provided by operating activities 44,519 77,074 87,868 Cash flows from investing activities: Proceeds from acquisitions, net of cash acquired — — 2,346 Purchases of other investments (1,002) (2,187) (2,204) Proceeds from distributions on other investments 3,314 3,878 2,656 Net cash provided by investing activities 2,312 1,691 2,798 Cash flows from financing activities: Payments for the redemption of subordinated notes — — (50,000) Repayment of long-term debt (5,714) (5,714) (7,143) Dividends paid on common stock (37,368) (33,602) (26,153) Payments for the repurchase of common stock — (32,923) (60,589) Proceeds from issuance of preferred stock — — 71,988 Dividends paid on preferred stock (3,750) (4,041) — Other 1,401 1,773 516 Net cash used in financing activities (45,431) (74,507) (71,381) Net increase in cash and cash equivalents 1,400 4,258 19,285 Cash and cash equivalents, beginning of year 99,018 94,760 75,475 Cash and cash equivalents, end of year $ 100,418 $ 99,018 $ 94,760 Supplemental disclosures of cash flow information: Noncash transactions: Common shares issued in connection with acquisitions $ — $ — $ 343,650

Supplemental Financial Informat

Supplemental Financial Information	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Financial Information	SUPPLEMENTAL FINANCIAL INFORMATION The following table presents other income and other expense components that primarily exceed one percent of the aggregate of total interest income and noninterest income in one or more of the periods indicated: Year ended December 31, ($ in thousands) 2023 2022 2021 Other income: Community development fees $ 4,037 $ 5,304 $ 5,491 Bank-owned life insurance 3,688 3,324 2,938 Other income 15,187 8,089 13,719 Total other noninterest income $ 22,912 $ 16,717 $ 22,148 Other expense: Amortization of intangibles $ 4,601 $ 5,367 $ 5,691 Banking expenses 8,110 7,212 6,123 FDIC and other insurance 13,164 7,098 5,789 Loan, legal expenses 8,639 6,943 7,130 Outside services 7,040 5,399 4,992 Other expenses 32,332 25,854 18,739 Total other noninterest expenses $ 73,886 $ 57,873 $ 48,464

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pay vs Performance Disclosure
Net income	$ 194,059	$ 203,043	$ 133,055

Insider Trading Arrangements

Insider Trading Arrangements	12 Months Ended
	Dec. 31, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Business and Consolidation	Business and Consolidation Enterprise is a financial holding company that provides a full range of banking and wealth management services to individuals and corporate customers primarily located in Arizona, California, Florida, Kansas, Missouri, Nevada, and New Mexico through its banking subsidiary, Enterprise Bank & Trust. All intercompany accounts and transactions have been eliminated.
Use of Estimates	Use of Estimates
Cash Flow Information	Cash Flow Information For purposes of reporting cash flows, the Company considers cash and due from banks, interest-bearing deposits and federal funds sold that mature within 90 days to be cash and cash equivalents. Cash balances include deposits in transit and drafts in the process of collection. The Federal Reserve is authorized to establish reserve requirements on depository institutions. In 2020, the Federal Reserve reduced the reserve requirement to zero percent. As such, cash balances at the Federal Reserve at December 31, 2023 and 2022 were not subject to a reserve requirement.
Recent Accounting Pronouncements	Recent Accounting Pronouncements FASB ASU 2021-01, Reference Rate Reform (Topic 848): Scope (ASU 2021-01) . ASU 2021-01 was issued in January 2021 and provides optional expedients and exceptions in ASC 848 to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendment only applies to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by the amendments will not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. The amendments in this update were effective immediately upon issuance and did not have a material effect on the consolidated financial statements. In December 2022, ASU 2022-06 Reference Rate Reform (Topic 848): Deferral of the Sunset date of Topic 848 was issued, which extends the sunset date from December 31, 2022 to December 31, 2024. FASB ASU 2022-02, Financial Instruments–Credit Losses (Topic 326); Troubled Debt Restructurings and Vintage Disclosures. ASU 2022-02 was issued in March 2022 and eliminates the accounting guidance on troubled debt restructurings for creditors in ASC 310-40 and amends the guidance on “vintage disclosures” to require disclosure of current-period gross write-offs by year of origination. The ASU also updates the requirements related to accounting for credit losses under ASC 326 and adds enhanced disclosures for creditors with respect to loan refinancings and restructurings for borrowers experiencing financial difficulty. The amendments in this update will be effective for fiscal years beginning after December 15, 2022 for entities that have adopted the amendments in ASU 2016-13, Financial Instruments–Credit Losses (Topic 326) Measurement of Credit Losses on Financial Instruments . The adoption of ASU 2022-02 did not have a material effect on the consolidated financial statements. FASB ASU 2022-03, Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. ASU 2022-03 was issued in June 2022 to (1) clarify the guidance in Topic 820, Fair Value Measurement, when measuring the fair value of an equity security subject to contractual restrictions that prohibit the sale of an equity security, (2) amend a related illustrative example, and (3) introduce new disclosure requirements for equity securities subject to contractual sale restrictions that are measured at fair value in accordance with Topic 820. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within those fiscal years. The Company has evaluated the accounting and disclosure requirements of ASU 2022-03 and does not expect them to have a material effect on the consolidated financial statements. FASB ASU 2023-02, Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method . ASU 2023-02 was issued in March 2023 to allow reporting entities to consistently account for equity investments made primarily for the purpose of receiving income tax credits and other income tax benefits. If certain conditions are met, a reporting entity may elect to account for its tax equity investments by using the proportional amortization method regardless of the program from which it receives income tax credits, instead of only low-income-housing tax credit (“LIHTC”) structures. This amendment also eliminates certain LIHTC-specific guidance aligning the accounting with other equity investments in tax credit structures. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within those fiscal years. The Company is evaluating the accounting and disclosure requirements of ASU 2023-02 and does not expect them to have a material effect on the consolidated financial statements. FASB ASU 2023-07, Improvements to Reportable Segment Disclosures . ASU 2023-07 was issued in November 2023 to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment disclosures. The amendments in this update require annual and interim disclosures on significant segment expenses that are regularly provided to the chief operating decision maker and require annual and interim disclosures on “other segment items” that comprise the difference between segment revenue less segment expense compared to the reported measure of segment profit or loss. In addition, the amendments will require all annual disclosures that are currently required to be reported on an interim basis and requires disclosure of the title and position of the chief operating decision maker and how that position uses the information to assess segment performance and the allocation of resources. ASU 2023-07 also requires entities that have a single reportable segment, such as the Company, to provide all disclosures required in this update and the existing segment disclosures in Topic 280. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of ASU 2023-07 and does not expect them to have a material effect on the consolidated financial statements. FASB ASU 2023-09, Income Tax Disclosures . ASU 2023-09 was issued in December 2023 to require annual disclosures on specific categories in the income tax rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. Annual disclosures are required on income taxes paid, including the amounts paid for federal, state and foreign taxes and the amount paid in individual jurisdictions if the amount is equal to or greater than 5% of total income taxes paid (net of refunds received). Additional annual disclosures are required on pre-tax income from continuing operations and income tax expense, disaggregated by domestic and foreign amounts. The amendments in this update are effective for fiscal years beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of ASU 2023-09 and does not expect them to have a material effect on the consolidated financial statements.
Investments	Investments The Company has classified all investments in debt securities as either available-for-sale or held-to-maturity. Securities classified as available-for-sale are carried at fair value. Unrealized holding gains and losses for available-for-sale securities are excluded from earnings and reported as a net amount as a separate component of shareholders’ equity until realized. All previous fair value adjustments included in the separate component of shareholders’ equity are reversed upon sale. Securities classified as held-to-maturity are carried at amortized cost and adjusted for amortization of premiums and accretion of discounts. An ACL on held-to-maturity securities is deducted from the amortized cost basis of the securities to reflect the expected amount to be collected. When it is determined a security will not be collected, the balance is written-off through the allowance. In evaluating the need for an ACL, securities with similar risk characteristics are grouped and an estimate of expected cash flows is determined using loss experience, adjusted for current and reasonable and supportable forecasts of economic conditions. For available-for-sale securities in a loss position, the Company evaluates whether the decline in fair value below amortized cost resulted from a credit loss or other factors. Losses attributed to credit are recognized through an ACL on available-for-sale securities, limited to the amount that the fair value of securities is less than the amortized cost basis. In assessing credit loss, the Company considers, among other things, (1) the extent to which fair value is less than the amortized cost basis, (2) adverse conditions specific to the security or industry, (3) historical payment patterns, (4) the likelihood of future payments, and (5) changes to the rating of a security by a rating agency. The Company has elected to exclude accrued interest receivable balances from the estimate of the ACL as these amounts are timely written off as a credit loss expense. Adjustments to the ACL on held-to-maturity and available-for-sale securities are recognized as a component of the provision for credit losses in the Consolidated Statements of Income. Premiums and discounts are amortized or accreted over the expected lives of the respective securities as an adjustment to yield using the interest method. Dividend and interest income is recognized when earned. Realized gains and losses are included in earnings and are derived using the specific identification method for determining the cost of securities sold.
Loans Receivable	Loans Held-for-Sale and Servicing Assets The Company provides long-term financing of 1-4 family residential real estate by originating fixed and variable rate loans. Long-term fixed and variable rate loans are usually sold into the secondary market with limited recourse. Upon receipt of an application for a real estate loan, the Company determines whether the loan will be sold into the secondary market or retained in the Company’s loan portfolio. The interest rates on the loans sold are locked with the buyer and the Company bears no interest rate risk related to these loans. Mortgage loans held-for-sale are carried at the lower of cost or fair value, which is determined on a specific identification method. The Company does not retain servicing on these loans. The Company also originates SBA 7(a) loans that generally provide for a guarantee of 75% of the loan, up to a maximum amount. The guaranteed portion of the loan can be sold in an active secondary market. For the years ended December 31, 2023 and 2022, all SBA7(a) loans are considered held-for-investment; however, as the Company makes the determination to sell the loans, they will be moved into the held-for-sale category. Sales of SBA guaranteed loans are executed on a servicing retained basis, and the Company retains the rights and obligations to service the loans. At December 31, 2023, the Company was servicing SBA loans that had been sold and has recorded a related servicing asset of $2.9 million. The servicing asset is accounted for under the amortization method and is evaluated for impairment. Amortization of the servicing asset is recorded as a reduction to servicing income. Gains on the sale of held-for-sale loans are reported net of direct origination fees and costs in the Company’s Consolidated Statements of Income. Loans Loans are reported at the principal balance outstanding, net of unearned fees, costs, and premiums or discounts on acquired loans. Loan origination fees, direct origination costs, and premiums or discounts resulting from acquired loans are deferred and recognized over the lives of the related loans as a yield adjustment using the interest method. Interest on loans is accrued to income based on the principal balance outstanding. The recognition of interest income is discontinued when a loan becomes 90 days past due or a significant deterioration in the borrower’s credit has occurred which, in management’s judgment, negatively impacts the collectibility of the loan. Unpaid interest on such loans is reversed at the time the loan becomes uncollectible and subsequent interest payments received are generally applied to principal if any doubt exists as to the collectibility of such principal. Loans that have not been restructured are returned to accrual status when management believes full collectibility of principal and interest is expected. Non-accrual loans that have been restructured will remain in a non-accrual status until the borrower has made at least six months of consecutive contractual payments. The Company has elected to present the accrued interest receivable balance separate from amortized cost basis, to exclude accrued interest receivable balances from the tabular disclosures, and not to estimate an ACL on accrued interest receivable as these amounts are timely written off as a credit loss expense. Accrued interest receivable totaled $66.7 million and $48.1 million at December 31, 2023 and 2022, respectively, and were reported in Other Assets on the consolidated balance sheets. Acquired Loans Acquired loans are separated into two categories based on the credit risk characteristics of the underlying borrowers as either PCD, for loans which have experienced more than insignificant credit deterioration since origination, or loans with no credit deterioration (non-PCD). At the date of acquisition, an ACL on PCD loans is determined and added to the amortized cost basis of the individual loans. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. The ACL on PCD loans is recorded in the acquisition accounting and no provision for credit losses is recognized at the acquisition date. Subsequent changes to the ACL are recorded through provision expense. For non-PCD loans, an ACL is established immediately after the acquisition through a charge to the provision for credit losses. The ACL for both PCD and non-PCD is determined by pooling loans with similar risk characteristics and using the approach described below under “Allowance for Credit Losses on Loans.” Non-accrual Loans Loans are generally placed on non-accrual status when contractually past due 90 days or more as to interest or principal payments. Additionally, whenever management becomes aware of facts or circumstances that may adversely impact the collectability of principal or interest on loans, it is management’s practice to place such loans on non-accrual status immediately, rather than delaying such action until the loans become 90 days past due. Previously accrued and uncollected interest on such loans is reversed. Income is recorded only to the extent a determination has been made that the principal balance of the loan is collectible and the interest payments are subsequently received in cash, or for a restructured loan, the borrower has made six consecutive contractual payments. If collectibility of the principal is in doubt, payments received are applied to loan principal. Loans past due 90 days or more but still accruing interest are also generally included in nonperforming loans. Loans past due 90 days or more but still accruing are classified as such where the underlying loans are both well secured (the collateral value covers principal and accrued interest) and in the process of collection. Allowance for Credit Losses on Loans The ACL on loans is a valuation account that is deducted from the amortized cost basis to present the net amount expected to be collected. Loans are charged-off against the allowance when management deems the loan uncollectible. Management estimates the allowance using relevant available information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Credit loss experience provides the basis for the estimation of expected credit losses. Adjustments to historical loss information are made for differences in current loan-specific risk characteristics such as differences in underwriting standards, portfolio mix, delinquency level, or term as well as for changes in environmental conditions, such as changes in unemployment rates, property values, or other relevant factors. The ACL on loans is measured on a collective basis when similar risk characteristics exist. The Company has identified the following portfolio segments: C&I – C&I loans consist of loans to small and medium-sized businesses in a wide variety of industries. These loans are generally collateralized by inventory, accounts receivable, equipment, real estate and other commercial assets, and may be supported by other credit enhancements such as personal guarantees. Risk arises primarily due to a difference between expected and actual cash flows of the borrower. However, the recoverability of these loans is also dependent on other factors primarily dictated by the type of collateral securing these loans. The fair value of the collateral securing these loans may fluctuate as market conditions change. Included within C&I are revolving loans supported by borrowing bases that fluctuate depending on the amount of underlying collateral. A portion of C&I loans consists of sponsor finance, which are loans with senior debt exposure to private equity backed companies. CRE – CRE loans include various types of loans for which the Company holds real property as collateral. Commercial real estate lending activity is typically restricted to owner-occupied properties or to investor properties that are owned by customers with a current banking relationship. The primary risks of CRE loans include the borrower’s inability to pay, material decreases in the value of the real estate being held as collateral and significant increases in interest rates, which may make the real estate mortgage loan unprofitable. Real estate loans may be more adversely affected by conditions in the real estate markets and in the general economy. Construction and Land Development – The Company originates loans to finance construction projects including 1-4 family residences, multifamily residences, commercial office, and industrial projects. Construction loans are generally collateralized by first liens on the real estate and have floating interest rates. Construction loans are considered to have higher risks due to construction completion and timing risk, and the ultimate repayment being sensitive to interest rate changes, governmental regulation of real property and the availability of long-term financing. Additionally, economic conditions may impact the Company’s ability to recover its investment in construction loans. Adverse economic conditions may negatively impact the real estate market which could affect the borrowers’ ability to complete and sell the project. Additionally, the fair value of the underlying collateral may fluctuate as market conditions change. Residential Real Estate – The Company originates loans to finance one- to four-family residences, secured by both first and second liens. Repayment of these loans is dependent on the borrowers’ ability to pay and the fair value of the underlying collateral. Residential loans with a second lien are inherently riskier due to the junior lien position. Agricultural – Agricultural loans are generally secured with equipment, livestock, crops or other non-real property and at times the underlying real property. Agricultural loans are primarily included as a component of CRE and C&I loans. As of December 31, 2023, the Company has ceased originating new agricultural credit relationships. Consumer – The Company provides a broad range of consumer loans to customers, including personal lines of credit, credit cards, recreational vehicles, yachts and automobile loans. Repayment of these loans is dependent on the borrowers’ ability to pay and the fair value of the underlying collateral. Consumer loans are included as a component of Other loans. The Company utilizes a DCF method to measure the ACL on loans collectively evaluated that are sub-segmented by credit risk levels. The DCF method incorporates assumptions for probability of default, loss given default, prepayments and curtailments over the contractual term of the loans. In determining the probability of default, the Company utilized regression analysis to determine certain economic factors that are relevant loss drivers in the portfolio segments based on historical or peer evaluations. National unemployment is a loss driver used in all portfolios. The annual percentage change in gross domestic product is used in Construction, Agricultural, and Consumer portfolios. The annual percentage change in a commercial real estate index, national house price index and national retail sales are used in the CRE, Residential Real Estate and C&I portfolios, respectively. The contractual term excludes expected extensions, renewals, and modifications unless the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the Company. The Company uses a one-year reasonable and supportable forecast that considers baseline, upside and downside economic scenarios. For periods beyond the forecast period, the Company reverts to historical loss rates on a straight-line basis over a one-year period. Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When management determines foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs. Other individually-evaluated loans may be remeasured using a discounted cash flow method if appropriate. Non-accrual loans, loans past due greater than 90 days and still accruing, unless adequately secured and in the process of collection, and restructured loans are evaluated individually. Loan Charge-Offs
Other Real Estate	Other Real Estate and Repossessed Assets Other real estate represents property acquired through foreclosure or deeded to the Company in lieu of foreclosure on loans on which the borrowers have defaulted on the payment of principal or interest. Other real estate is initially recorded at fair value less cost to sell and subsequently at the lower of cost or fair value less estimated costs to sell. The fair value of other real estate is based upon estimates of future cash flows, market value of similar assets, if available, or independent appraisals. These estimates involve significant uncertainties and judgments. As a result, fair value estimates may not be realizable in a current sale or settlement of the other real estate. Gains, losses and writedowns resulting from the writedown or sale of other real estate are credited or charged to earnings. Gains and losses resulting from the sale of other real estate are credited or charged to current period earnings. Costs of maintaining and operating other real estate are expensed as incurred, and expenditures to complete or improve other real estate properties are capitalized if the expenditures are expected to be recovered upon ultimate sale of the property. Repossessed assets represent property, other than real estate, that is acquired through repossession and is initially recorded at estimated fair value on the date of acquisition, less costs to sell. Subsequent to repossession, the assets are carried at the lower of cost or fair value, less estimated costs to sell.
Fixed Assets	Fixed Assets Buildings, leasehold improvements, furniture, fixtures, and equipment are stated at cost less accumulated depreciation. All categories are computed using the straight-line method over their respective estimated useful lives. Furniture, fixtures and equipment is depreciated over three ten
State Tax Credits Held for Sale	State Tax Credits
Cash Surrender Value of Life Insurance	Cash Surrender Value of Life Insurance The Company has purchased bank-owned life insurance policies on certain bank officers. Bank-owned life insurance is recorded at its cash surrender value. Changes in the cash surrender values, including death benefits in excess of the carrying amount, are included in noninterest income.
Federal Home Loan Bank Stock	Federal Home Loan Bank Stock
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The Company tests goodwill for impairment on an annual basis and whenever events or changes in circumstances indicate the Company may not be able to recover the respective asset’s carrying amount. The Company’s annual test for impairment was performed in the fourth quarter of 2023. Such tests involve the use of estimates and assumptions. Potential impairments to goodwill must first be identified by performing a qualitative assessment which evaluates relevant events or circumstances to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If this test indicates it is more likely than not that goodwill has been impaired, then a quantitative impairment test is completed. The quantitative impairment test calculates the fair value of the reporting unit and compares it with its carrying amount, including goodwill. If the carrying amount of goodwill exceeds its implied fair market value, an impairment loss is recognized. That loss is equal to the carrying amount of goodwill that is in excess of its implied fair market value. Core deposit intangibles are amortized using an accelerated method over an estimated useful life of approximately 10 years.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets Long-lived assets, such as fixed assets and purchased intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of are separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. The assets and liabilities of a disposal group classified as held-for-sale are presented separately in the appropriate asset and liability sections of the balance sheet.
Derivative Financial Instruments and Hedging Activities	Derivative Financial Instruments and Hedging Activities The Company uses derivative financial instruments to assist in managing interest rate sensitivity and to modify the repricing, maturity and option characteristics of certain assets and liabilities. In addition, the Company also offers an interest rate hedge program that includes interest rate swaps to assist its customers in managing their interest rate risk profile. In order to eliminate the interest rate risk associated with offering these products, the Company enters into derivative contracts with third parties to offset the customer contracts. The Company does not enter into derivative financial instruments for trading purposes. Derivative instruments are required to be measured at fair value and recognized as either assets or liabilities in the consolidated financial statements. Fair value represents the payment the Company would receive or pay if the item were sold or bought in a current transaction. The accounting for changes in fair value (gains or losses) of a hedged item is dependent on whether the related derivative is designated and qualifies for “hedge accounting.” The Company assigns derivatives to one of these categories at the purchase date: cash flow hedge, fair value hedge, or non-designated hedges as part of a customer interest-rate swap product. An assessment of the expected and ongoing hedge effectiveness of any derivative designated a fair value hedge or cash flow hedge is performed as required by the applicable accounting standards. Derivatives are included in other assets other liabilities Certain derivative financial instruments are not designated as cash flow or as fair value hedges for accounting purposes. These non-designated derivatives are intended to provide interest rate protection on net interest income or noninterest income but do not meet hedge accounting treatment. Customer accommodation interest rate swap contracts are not designated as hedging instruments. Changes in the fair value of these instruments are recorded in interest income or noninterest income in the consolidated statements of income depending on the underlying hedged item.
Income Taxes	Income Taxes The Company and its subsidiaries file a consolidated federal income tax return. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The need for deferred tax asset valuation allowances is based on a more-likely-than-not standard. The ability to realize deferred tax assets depends on the ability to generate sufficient positive taxable income within the carryback or carryforward periods provided for in the laws for each applicable taxing jurisdiction. The following possible sources of taxable income are considered: future reversal patterns of existing taxable temporary differences, future taxable income exclusive of reversing temporary differences, taxable income in prior carryback years and the availability of qualified tax planning strategies. The assessment regarding whether a valuation allowance is required or should be adjusted depends on all available positive and negative factors including, but not limited to, nature, frequency, and severity of recent losses, duration of available carryforward periods, experience with tax attributes expiring unused and near and medium term financial outlook. Because of the complexity of tax laws and regulations, interpretation can be difficult and subject to legal judgment given specific facts and circumstances. It is possible that others, given the same information, may at any point in time reach different reasonable conclusions regarding the estimated amounts of accrued taxes.
Stock-Based Compensation	Share-Based Compensation
Acquisitions and Divestitures	Acquisitions and Divestitures Acquisitions and business combinations are accounted for using the acquisition method of accounting. The assets and liabilities of the acquired entities have been recorded at their estimated fair values at the date of acquisition. Goodwill represents the excess of the purchase price over the fair value of net assets acquired, including the amount assigned to identifiable intangible assets. The purchase price allocation process requires an estimation of the fair values of the assets acquired and the liabilities assumed. When a business combination agreement provides for an adjustment to the cost of the combination contingent on future events, the Company includes an estimate of the acquisition-date fair value as part of the cost of the combination. To determine the fair values, the Company relies on third party valuations, such as appraisals, or internal valuations based on discounted cash flow analyses or other valuation techniques. The results of operations of the acquired business are included in the Company’s consolidated financial statements from the date of acquisition. Merger-related expenses include costs directly related to merger or acquisition activity and include legal and professional fees, system consolidation and conversion costs, and compensation costs such as severance and retention incentives for employees impacted by acquisition activity. The Company accounts for merger-related expenses in the periods in which the costs are incurred and the services are received. For divestitures, the Company measures an asset (disposal group) classified as held-for-sale at the lower of its carrying value at the date the asset is initially classified as held-for-sale or its fair value less costs to sell. The Company reports the results of operations of an entity or group of components that either has been disposed of or held-for-sale as discontinued operations only if the disposal of that component represents a strategic shift that has or will have a major effect on an entity’s operations and financial results. Any incremental direct costs incurred to transact the sale are allocated against the gain or loss on the sale. These costs include items such as legal fees, title transfer fees, broker fees, etc. Any goodwill and intangible assets associated with the portion of the reporting unit to be disposed of is included in the carrying amount of the business in determining the gain or loss on the sale.
Basic and Diluted Earnings Per Common Share	Basic and Diluted Earnings Per Common Share
Consolidated Statement of Comprehensive Income	Consolidated Statement of Comprehensive Income
Reclassification, Policy [Policy Text Block]	Reclassifications Certain amounts, including deposit costs and other noninterest expense, reported in prior periods in the “Consolidated Statements of Income,” and “Note 20 – Supplemental Financial Information,” have been reclassified to conform to the current presentation. The reclassifications had no effect on net income or shareholders’ equity.
Available-for-sale Securities	The unrealized losses at both December 31, 2023 and 2022, were primarily attributable to changes in market interest rates since the securities were purchased. In 2023, an allowance for credit losses on available-for-sale investment securities was established through a provision for credit losses of $4.2 million. A debt security of $4.2 million was subsequently charged-off against that allowance. At both December 31, 2023 and 2022, there was no ACL on available-for-sale securities outstanding. Accrued interest receivable on held-to-maturity debt securities totaled $6.5 million and $5.8 million at December 31, 2023 and 2022, respectively, and is excluded from the estimate of expected credit losses. The estimate of expected credit losses considers historical credit loss information adjusted for current conditions and reasonable and supportable forecasts. At December 31, 2023 and 2022, the ACL on held-to-maturity securities was $0.8 million and $0.7 million, respectively.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Summary of Per Common Share Data and Amounts	The following table presents a summary of per common share data and amounts for the periods indicated. Year ended December 31, ($ and shares in thousands, except per share data) 2023 2022 2021 Net income available to common shareholders $ 190,309 $ 199,002 $ 133,055 Weighted average common shares outstanding 37,370 37,381 34,436 Additional dilutive common stock equivalents 137 119 60 Weighted average diluted common shares outstanding 37,507 37,500 34,496 Basic earnings per common share $ 5.09 $ 5.32 $ 3.86 Diluted earnings per common share $ 5.07 $ 5.31 $ 3.86

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale and Held-to-Maturity Securities Reconciliation	The following table presents the amortized cost, gross unrealized gains and losses and fair value of securities available-for-sale and held-to-maturity: December 31, 2023 ($ in thousands) Amortized Cost Gross Gross Fair Value Available-for-sale securities: Obligations of U.S. Government-sponsored enterprises $ 316,511 $ 303 $ (20,368) $ 296,446 Obligations of states and political subdivisions 500,881 57 (68,767) 432,171 Agency mortgage-backed securities 758,283 1,181 (59,083) 700,381 Corporate debt securities 8,750 — (1,176) 7,574 U.S. Treasury Bills 184,709 62 (3,070) 181,701 Total securities available-for-sale $ 1,769,134 $ 1,603 $ (152,464) $ 1,618,273 Held-to-maturity securities: Obligations of states and political subdivisions $ 575,699 $ 7,078 $ (47,461) $ 535,316 Agency mortgage-backed securities 52,100 — (5,424) 46,676 Corporate debt securities 123,420 216 (8,981) 114,655 Total securities held-to-maturity $ 751,219 $ 7,294 $ (61,866) $ 696,647 Allowance for credit losses (785) Total securities held-to-maturity, net $ 750,434 December 31, 2022 ($ in thousands) Amortized Cost Gross Gross Fair Value Available-for-sale securities: Obligations of U.S. Government-sponsored enterprises $ 266,090 $ — $ (28,305) $ 237,785 Obligations of states and political subdivisions 507,842 27 (90,425) 417,444 Agency mortgage-backed securities 727,931 453 (68,980) 659,404 Corporate debt securities 13,750 — (1,110) 12,640 U.S. Treasury Bills 213,441 1 (4,908) 208,534 Total securities available-for-sale $ 1,729,054 $ 481 $ (193,728) $ 1,535,807 Held-to-maturity securities: Obligations of states and political subdivisions $ 529,012 $ 2,321 $ (65,347) $ 465,986 Agency mortgage-backed securities 57,018 — (6,416) 50,602 Corporate debt securities 124,620 163 (12,854) 111,929 Total securities held-to-maturity $ 710,650 $ 2,484 $ (84,617) $ 628,517 Allowance for credit losses (735) Total securities held-to-maturity, net $ 709,915
Debt Securities, Available-for-sale	The following table presents the amortized cost, gross unrealized gains and losses and fair value of securities available-for-sale and held-to-maturity: December 31, 2023 ($ in thousands) Amortized Cost Gross Gross Fair Value Available-for-sale securities: Obligations of U.S. Government-sponsored enterprises $ 316,511 $ 303 $ (20,368) $ 296,446 Obligations of states and political subdivisions 500,881 57 (68,767) 432,171 Agency mortgage-backed securities 758,283 1,181 (59,083) 700,381 Corporate debt securities 8,750 — (1,176) 7,574 U.S. Treasury Bills 184,709 62 (3,070) 181,701 Total securities available-for-sale $ 1,769,134 $ 1,603 $ (152,464) $ 1,618,273 Held-to-maturity securities: Obligations of states and political subdivisions $ 575,699 $ 7,078 $ (47,461) $ 535,316 Agency mortgage-backed securities 52,100 — (5,424) 46,676 Corporate debt securities 123,420 216 (8,981) 114,655 Total securities held-to-maturity $ 751,219 $ 7,294 $ (61,866) $ 696,647 Allowance for credit losses (785) Total securities held-to-maturity, net $ 750,434 December 31, 2022 ($ in thousands) Amortized Cost Gross Gross Fair Value Available-for-sale securities: Obligations of U.S. Government-sponsored enterprises $ 266,090 $ — $ (28,305) $ 237,785 Obligations of states and political subdivisions 507,842 27 (90,425) 417,444 Agency mortgage-backed securities 727,931 453 (68,980) 659,404 Corporate debt securities 13,750 — (1,110) 12,640 U.S. Treasury Bills 213,441 1 (4,908) 208,534 Total securities available-for-sale $ 1,729,054 $ 481 $ (193,728) $ 1,535,807 Held-to-maturity securities: Obligations of states and political subdivisions $ 529,012 $ 2,321 $ (65,347) $ 465,986 Agency mortgage-backed securities 57,018 — (6,416) 50,602 Corporate debt securities 124,620 163 (12,854) 111,929 Total securities held-to-maturity $ 710,650 $ 2,484 $ (84,617) $ 628,517 Allowance for credit losses (735) Total securities held-to-maturity, net $ 709,915
Investments Classified by Contractual Maturity Date	The amortized cost and estimated fair value of debt securities at December 31, 2023, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. The weighted average life of the mortgage-backed securities is approximately 5 years. Available-for-sale Held-to-maturity ($ in thousands) Amortized Cost Estimated Amortized Cost Estimated Due in one year or less $ 141,734 $ 140,353 $ 1,230 $ 1,230 Due after one year through five years 327,794 309,375 81,887 77,227 Due after five years through ten years 130,737 117,025 190,949 183,396 Due after ten years 410,586 351,139 425,053 388,118 Agency mortgage-backed securities 758,283 700,381 52,100 46,676 $ 1,769,134 $ 1,618,273 $ 751,219 $ 696,647
Schedule of Unrealized Loss on Investments	There were 753 and 740 available-for-sale securities in an unrealized loss position as of December 31, 2023 and 2022, respectively, included in the following tables: December 31, 2023 Less than 12 months 12 months or more Total ($ in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Obligations of U.S. Government-sponsored enterprises $ 25,886 $ 85 $ 247,027 $ 20,283 $ 272,913 $ 20,368 Obligations of states and political subdivisions 1,168 163 428,171 68,604 429,339 68,767 Agency mortgage-backed securities 58,249 417 540,032 58,666 598,281 59,083 Corporate debt securities — — 7,574 1,176 7,574 1,176 U.S. Treasury Bills 41,857 49 103,588 3,021 145,445 3,070 $ 127,160 $ 714 $ 1,326,392 $ 151,750 $ 1,453,552 $ 152,464 December 31, 2022 Less than 12 months 12 months or more Total ($ in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Obligations of U.S. Government-sponsored enterprises $ 73,738 $ 6,249 $ 163,047 $ 22,056 $ 236,785 $ 28,305 Obligations of states and political subdivisions 103,179 13,501 311,634 76,924 414,813 90,425 Agency mortgage-backed securities 334,431 20,038 281,321 48,942 615,752 68,980 Corporate debt securities 12,640 1,110 — — 12,640 1,110 U.S. Treasury Bills 198,688 4,908 — — 198,688 4,908 $ 722,676 $ 45,806 $ 756,002 $ 147,922 $ 1,478,678 $ 193,728
Schedule of Realized Gain (Loss)	The proceeds, gross gains and losses realized from sales of available-for-sale investment securities were as follows: December 31, ($ in thousands) 2023 2022 2021 Gross gains realized $ 601 $ — $ — Proceeds from sales 40,393 — 27,135

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2023
Non-covered Loans [Line Items]
Schedule of Collateral Dependent Loans	Collateral-dependent nonperforming loans by class of loan is presented as of the dates indicated: December 31, 2023 Type of Collateral ($ in thousands) Commercial Real Estate Residential Real Estate Blanket Lien Other Commercial and industrial $ 527 $ 1,864 $ 344 $ 3,445 Real estate: Commercial - investor owned 19,467 — — — Commercial - owner occupied 5,904 1,638 1,831 — Construction and land development 528 741 — — Residential — 959 — — Total $ 26,426 $ 5,202 $ 2,175 $ 3,445 December 31, 2022 Type of Collateral ($ in thousands) Commercial Real Estate Residential Real Estate Blanket Lien Commercial and industrial $ — $ — $ 1,047 Real estate: Commercial - investor owned 2,238 785 — Commercial - owner occupied 1,177 — — Construction and land development — 1,192 — Residential — 73 — Total $ 3,415 $ 2,050 $ 1,047
Summary of Recorded Investment by for Portfolio Loans Restructured	The following table shows the recorded investment at the end of the reporting period for loans modified to borrowers experiencing financial difficulty, disaggregated by loan class and type of concession granted: Term Extension Twelve months ended ($ in thousands) December 31, 2023 Percent of Total Loan Class Commercial and industrial $ 39,437 0.84 % Real estate: Commercial - investor owned 9,411 0.38 % Commercial - owner occupied 94 — % Construction and land development 1,137 0.15 % Residential 7,601 2.04 % Other 4 — % Total $ 57,684 The following table summarizes the financial impacts of loan modifications made to borrowers experiencing financial difficulty and outstanding at the end of the year: Weighted Average Term Extension (in months) Twelve months ended December 31, 2023 Commercial and industrial 5 Real estate: Commercial - investor owned 4 Commercial - owner occupied 3 Construction and land development 7 Residential 3 Other 48 The following table shows the aging of the recorded investment in modified loans by class: December 31, 2023 ($ in thousands) Current 30-89 Days 90 or More Total Commercial and industrial $ 39,187 $ 250 $ — $ 39,437 Real estate: Commercial - investor owned 9,411 — — 9,411 Commercial - owner occupied — 94 — 94 Construction and land development 1,137 — — 1,137 Residential 7,527 74 — 7,601 Other — 4 — 4 Total $ 57,262 $ 422 $ — $ 57,684
Summary of Recorded Investment by Risk Category of Portfolio Loans by Portfolio Class and Category	ross charge-offs by loan class and year of origination is presented in the following table: December 31, 2023 Term Loans by Origination Year ($ in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Converted to Term Loans Revolving Loans Total Commercial and industrial $ 600 $ 2,999 $ 1,940 $ 2,539 $ — $ — $ 12,533 $ 15,178 $ 35,789 Real estate: Commercial - investor owned — — 170 — 4,692 7 — — 4,869 Construction and land development — — — — — 9 — — 9 Residential — — — — — 480 176 — 656 Other — 3 459 — — 319 12 — 793 Total charge-offs by origination year $ 600 $ 3,002 $ 2,569 $ 2,539 $ 4,692 $ 815 $ 12,721 $ 15,178 $ 42,116 Total gross charge-offs by performing status 1,099 Total gross charge-offs $ 43,215
Non-Covered Loans
Non-covered Loans [Line Items]
Summary of Portfolio Loans by Category	The following table presents a summary of loans by category: ($ in thousands) December 31, 2023 December 31, 2022 Commercial and industrial $ 4,674,056 $ 3,859,964 Real estate loans: Commercial - investor owned 2,452,402 2,357,820 Commercial - owner occupied 2,344,117 2,270,551 Construction and land development 760,122 611,565 Residential 371,995 395,537 Total real estate loans 5,928,636 5,635,473 Other 285,653 248,990 Loans, before unearned loan fees 10,888,345 9,744,427 Unearned loan fees, net (4,227) (7,289) Loans, including unearned loan fees $ 10,884,118 $ 9,737,138
Summary of Allowance for Loan Losses and the Recorded Investment in Portfolio Loans by Class and Category Based on Impairment Method	A summary of the activity, by loan category, in the allowance for credit losses on loans for 2021, 2022, and 2023 is as follows: ($ in thousands) Commercial and industrial CRE - investor owned CRE - owner occupied Construction and land development Residential real estate Other Total Balance at December 31, 2021 Allowance for credit losses on loans: Balance, beginning of year $ 58,812 $ 32,062 $ 17,012 $ 21,413 $ 4,585 $ 2,787 $ 136,671 Provision (benefit) for credit losses 14,361 568 (550) (7,365) 3,900 2,079 12,993 Initial allowance on acquired PCD loans 1,077 3,651 1,504 37 — 737 7,006 Charge-offs (12,113) (2,487) (602) (3) (1,521) (459) (17,185) Recoveries 1,688 2,083 196 454 963 172 5,556 Balance, end of year $ 63,825 $ 35,877 $ 17,560 $ 14,536 $ 7,927 $ 5,316 $ 145,041 Balance at December 31, 2022 Allowance for credit losses on loans: Balance, beginning of year $ 63,825 $ 35,877 $ 17,560 $ 14,536 $ 7,927 $ 5,316 $ 145,041 Provision (benefit) for credit losses (6,121) 46 4,867 (3,145) 540 (397) (4,210) Charge-offs (6,082) (478) (395) — (2,068) (370) (9,393) Recoveries 2,213 746 720 53 1,529 233 5,494 Balance, end of year $ 53,835 $ 36,191 $ 22,752 $ 11,444 $ 7,928 $ 4,782 $ 136,932 Balance at December 31, 2023 Allowance for credit losses on loans: Balance, beginning of year $ 53,835 $ 36,191 $ 22,752 $ 11,444 $ 7,928 $ 4,782 $ 136,932 Provision (benefit) for credit losses 38,308 (335) 523 (1,300) (2,109) 796 35,883 Charge-offs (36,302) (4,869) — (9) (656) (1,379) (43,215) Recoveries 3,045 293 130 63 979 661 5,171 Balance, end of year $ 58,886 $ 31,280 $ 23,405 $ 10,198 $ 6,142 $ 4,860 $ 134,771
Schedule of Recorded Investment in Impaired Portfolio Loans by Category	The following tables present the recorded investment in nonperforming loans by category, excluding government guaranteed balances: December 31, 2023 ($ in thousands) Non-accrual Restructured, accruing Loans over 90 days past due and still accruing interest Total nonperforming loans Nonaccrual loans with no allowance Commercial and industrial $ 7,641 $ — $ 115 $ 7,756 $ 6,179 Real estate: Commercial - investor owned 20,404 — — 20,404 19,466 Commercial - owner occupied 12,972 — 363 13,335 9,010 Construction and land development 1,205 — 64 1,269 464 Residential 959 — — 959 959 Other — — 5 5 — Total $ 43,181 $ — $ 547 $ 43,728 $ 36,078 December 31, 2022 ($ in thousands) Non-accrual Restructured, accruing Loans over 90 days past due and still accruing interest Total nonperforming loans Nonaccrual loans with no allowance Commercial and industrial $ 4,373 $ — $ 70 $ 4,443 $ 1,047 Real estate: Commercial - investor owned 3,023 — — 3,023 — Commercial - owner occupied 1,177 — — 1,177 — Construction and land development 1,192 — — 1,192 1,192 Residential — 73 — 73 — Other 1 — 72 73 — Total $ 9,766 $ 73 $ 142 $ 9,981 $ 2,239
Summary of Aging of Recorded Investment in Past Due Portfolio Loans by Portfolio Class and Category	The aging of the recorded investment in past due loans by class and category is presented as of the dates indicated. December 31, 2023 ($ in thousands) 30-89 Days 90 or More Total Current Total Commercial and industrial $ 3,445 $ 9,037 $ 12,482 $ 4,661,574 $ 4,674,056 Real estate: Commercial - investor owned 1,905 18,395 20,300 2,432,102 2,452,402 Commercial - owner occupied 8,409 14,142 22,551 2,321,566 2,344,117 Construction and land development 770 1,908 2,678 757,444 760,122 Residential 1,620 959 2,579 369,416 371,995 Other 82 4 86 285,567 285,653 Loans, before unearned loan fees 16,231 44,445 60,676 10,827,669 10,888,345 Unearned loan fees, net (4,227) Total $ 10,884,118 December 31, 2022 ($ in thousands) 30-89 Days 90 or More Total Current Total Commercial and industrial $ 555 $ 2,373 $ 2,928 $ 3,857,036 $ 3,859,964 Real estate: Commercial - investor owned — 1,135 1,135 2,356,685 2,357,820 Commercial - owner occupied 8,628 164 8,792 2,261,759 2,270,551 Construction and land development 9 1,192 1,201 610,364 611,565 Residential 1,227 — 1,227 394,310 395,537 Other 18 72 90 248,900 248,990 Loans, before unearned loan fees 10,437 4,936 15,373 9,729,054 9,744,427 Unearned loan fees, net (7,289) Total $ 9,737,138
Summary of Recorded Investment by Risk Category of Portfolio Loans by Portfolio Class and Category	The recorded investment by risk category of the loans by class and year of origination is presented in the following tables as of the dates indicated: December 31, 2023 Term Loans by Origination Year ($ in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Converted to Term Loans Revolving Loans Total Commercial and industrial Pass (1-6) $ 1,567,738 $ 1,052,462 $ 345,292 $ 194,972 $ 123,425 $ 71,205 $ 12,163 $ 1,108,233 $ 4,475,490 Special Mention (7) 52,523 6,845 8,597 544 453 242 272 19,590 89,066 Classified (8-9) 12,824 19,306 1,833 812 339 363 508 45,830 81,815 Total Commercial and industrial $ 1,633,085 $ 1,078,613 $ 355,722 $ 196,328 $ 124,217 $ 71,810 $ 12,943 $ 1,173,653 $ 4,646,371 Commercial real estate-investor owned Pass (1-6) $ 495,131 $ 544,223 $ 492,974 $ 323,175 $ 165,343 $ 236,914 $ 5,222 $ 51,413 $ 2,314,395 Special Mention (7) 3,626 22,725 51,851 1,657 164 5,526 — — 85,549 Classified (8-9) 9,411 1,034 43 15,838 2,831 4,919 48 — 34,124 Total Commercial real estate-investor owned $ 508,168 $ 567,982 $ 544,868 $ 340,670 $ 168,338 $ 247,359 $ 5,270 $ 51,413 $ 2,434,068 Commercial real estate-owner occupied Pass (1-6) $ 407,901 $ 486,701 $ 489,589 $ 301,399 $ 183,872 $ 313,474 $ 5,083 $ 30,036 $ 2,218,055 Special Mention (7) 13,739 2,521 4,652 10,492 5,439 15,833 — 1,493 54,169 Classified (8-9) 3,389 3,413 2,247 3,181 8,878 24,857 5,056 — 51,021 Total Commercial real estate-owner occupied $ 425,029 $ 492,635 $ 496,488 $ 315,072 $ 198,189 $ 354,164 $ 10,139 $ 31,529 $ 2,323,245 Construction real estate Pass (1-6) $ 292,689 $ 325,010 $ 96,426 $ 30,956 $ 1,413 $ 3,408 $ 10 $ 3,700 $ 753,612 Special Mention (7) 42 2,958 1,046 210 123 114 — — 4,493 Classified (8-9) 1,137 704 — — 13 466 — — 2,320 Total Construction real estate $ 293,868 $ 328,672 $ 97,472 $ 31,166 $ 1,549 $ 3,988 $ 10 $ 3,700 $ 760,425 Residential real estate Pass (1-6) $ 59,259 $ 41,956 $ 51,436 $ 30,713 $ 17,793 $ 77,327 $ 1,464 $ 78,351 $ 358,299 Special Mention (7) 322 — — — 75 1,801 — 614 2,812 Classified (8-9) 127 1,073 69 — 30 1,492 74 7,500 10,365 Total residential real estate $ 59,708 $ 43,029 $ 51,505 $ 30,713 $ 17,898 $ 80,620 $ 1,538 $ 86,465 $ 371,476 Other Pass (1-6) $ 10,071 $ 55,923 $ 67,766 $ 53,569 $ 9,382 $ 19,657 $ 7 $ 28,464 $ 244,839 Special Mention (7) — — 14,472 — — — — 11,645 26,117 Classified (8-9) — — — — — 8 — — 8 Total Other $ 10,071 $ 55,923 $ 82,238 $ 53,569 $ 9,382 $ 19,665 $ 7 $ 40,109 $ 270,964 Total loans classified by risk category $ 2,929,929 $ 2,566,854 $ 1,628,293 $ 967,518 $ 519,573 $ 777,606 $ 29,907 $ 1,386,869 $ 10,806,549 Total loans classified by performing status 77,569 Total loans $ 10,884,118 December 31, 2022 Term Loans by Origination Year ($ in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Converted to Term Loans Revolving Loans Total Commercial and industrial Pass (1-6) $ 1,403,381 $ 635,275 $ 332,740 $ 172,127 $ 62,729 $ 66,152 $ 8,388 $ 964,592 $ 3,645,384 Special Mention (7) 37,048 10,836 13,858 423 7,995 4,102 — 72,944 147,206 Classified (8-9) 16,176 4,457 1,627 24 166 183 — 21,349 43,982 Total Commercial and industrial $ 1,456,605 $ 650,568 $ 348,225 $ 172,574 $ 70,890 $ 70,437 $ 8,388 $ 1,058,885 $ 3,836,572 Commercial real estate-investor owned Pass (1-6) $ 667,107 $ 584,644 $ 392,402 $ 240,033 $ 115,530 $ 202,661 $ 1,457 $ 53,051 $ 2,256,885 Special Mention (7) 18,844 5,751 23,502 11,605 — 13,063 — — 72,765 Classified (8-9) 1,823 — 465 953 193 6,092 49 — 9,575 Total Commercial real estate-investor owned $ 687,774 $ 590,395 $ 416,369 $ 252,591 $ 115,723 $ 221,816 $ 1,506 $ 53,051 $ 2,339,225 Commercial real estate-owner occupied Pass (1-6) $ 539,610 $ 555,690 $ 362,150 $ 232,335 $ 123,095 $ 270,613 $ — $ 57,308 $ 2,140,801 Special Mention (7) 11,164 3,801 16,856 4,455 13,043 9,009 — 800 59,128 Classified (8-9) — 1,572 3,483 8,910 15,873 11,387 — — 41,225 Total Commercial real estate-owner occupied $ 550,774 $ 561,063 $ 382,489 $ 245,700 $ 152,011 $ 291,009 $ — $ 58,108 $ 2,241,154 Construction real estate Pass (1-6) $ 290,146 $ 232,998 $ 53,129 $ 2,909 $ 2,061 $ 8,480 $ — $ 1,769 $ 591,492 Special Mention (7) 17,331 — 681 146 111 106 — — 18,375 Classified (8-9) 1,192 — — 14 471 21 — — 1,698 Total Construction real estate $ 308,669 $ 232,998 $ 53,810 $ 3,069 $ 2,643 $ 8,607 $ — $ 1,769 $ 611,565 Residential real estate Pass (1-6) $ 63,317 $ 60,910 $ 48,796 $ 20,943 $ 11,259 $ 88,795 $ 579 $ 96,304 $ 390,903 Special Mention (7) 331 — — 79 352 781 — — 1,543 Classified (8-9) 121 73 — 53 1,102 994 — 5 2,348 Total residential real estate $ 63,769 $ 60,983 $ 48,796 $ 21,075 $ 12,713 $ 90,570 $ 579 $ 96,309 $ 394,794 Other Pass (1-6) $ 38,753 $ 88,613 $ 56,252 $ 10,556 $ 20,508 $ 10,796 $ — $ 9,536 $ 235,014 Special Mention (7) — — — — — — — — — Classified (8-9) — — — 4 3 11 3 4 25 Total Other $ 38,753 $ 88,613 $ 56,252 $ 10,560 $ 20,511 $ 10,807 $ 3 $ 9,540 $ 235,039 Total loans classified by risk category $ 3,106,344 $ 2,184,620 $ 1,305,941 $ 705,569 $ 374,491 $ 693,246 $ 10,476 $ 1,277,662 $ 9,658,349 Total loans classified by performing status 78,789 Total loans $ 9,737,138 In the tables above, loan originations in 2023 and 2022 with a classification of “special mention” or “classified” primarily represent renewals or modifications initially underwritten and originated in prior years. For certain loans the Company evaluates credit quality based on the aging status. The following tables present the recorded investment in loans based on payment activity as of the dates indicated: December 31, 2023 ($ in thousands) Performing Non Performing Total Commercial and industrial $ 26,076 $ 112 $ 26,188 Real estate: Commercial - investor owned 17,885 — 17,885 Commercial - owner occupied 28,373 — 28,373 Residential 712 — 712 Other 4,406 5 4,411 Total $ 77,452 $ 117 $ 77,569 December 31, 2022 ($ in thousands) Performing Non Performing Total Commercial and industrial $ 23,240 $ 70 $ 23,310 Real estate: Commercial - investor owned 18,595 — 18,595 Commercial - owner occupied 29,397 — 29,397 Residential 743 — 743 Other 6,672 72 6,744 Total $ 78,647 $ 142 $ 78,789

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Lease, Cost [Table Text Block]	For the year ended December 31, ($ in thousands) 2023 2022 Operating lease cost $ 5,628 $ 5,868 Short-term lease cost 491 814 Total lease cost $ 6,119 $ 6,682
Assets And Liabilities, Lessee [Table Text Block]	Supplemental balance sheet information related to leases is as follows: ($ in thousands) December 31, 2023 December 31, 2022 Operating lease right-of-use assets, included in other assets $ 25,406 $ 17,355 Operating lease liabilities, included in other liabilities 28,635 18,038 Operating leases Weighted average remaining lease term 7 years 5 years Weighted average discount rate 3.9 % 2.5 %
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Maturities of operating lease liabilities are as follows: ($ in thousands) Year Amount 2024 $ 5,378 2025 5,586 2026 5,682 2027 4,442 2028 2,979 Thereafter 9,011 Total operating lease liabilities, payments 33,078 Less: present value adjustment 4,443 Operating lease liabilities $ 28,635

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	Select terms of the hedges are as follows: $ in thousands Notional Fixed Rate Maturity Date $15,465 2.60% March 15, 2024 $14,433 2.60% March 30, 2024 $18,558 2.64% March 15, 2026 $13,506 2.64% March 17, 2026
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Balance Sheet. Notional Amount Derivative Assets Derivative Liabilities ($ in thousands) December 31, 2023 December 31, 2022 December 31, 2023 December 31, 2022 December 31, 2023 December 31, 2022 Derivatives designated as hedging instruments Interest rate swaps $ 211,962 $ 161,962 $ 1,389 $ 2,348 $ 233 $ 921 Interest rate collar 100,000 100,000 514 — — 48 Total $ 1,903 $ 2,348 $ 233 $ 969 Derivatives not designated as hedging instruments Interest rate swaps $ 779,152 $ 687,902 $ 15,886 $ 20,610 $ 15,951 $ 20,612 The tables below present a gross presentation, the effects of offsetting, and a net presentation of the Company’s financial instruments subject to offsetting. The gross amounts of assets or liabilities can be reconciled to the tabular disclosure of fair value. The tabular disclosure of fair value provides the location that financial assets and liabilities are presented on the Balance Sheet. As of December 31, 2023 Gross Amounts Not Offset in the Statement of Financial Position ($ in thousands) Gross Amounts Recognized Gross Amounts Offset in the Statement of Financial Position Net Amounts of Assets presented in the Statement of Financial Position Financial Instruments Fair Value Collateral Posted Net Amount Assets: Interest rate swaps $ 17,275 $ — $ 17,275 $ 1,105 $ 16,170 $ — Interest rate collar 514 — 514 — — 514 Liabilities: Interest rate swaps $ 16,184 $ — $ 16,184 $ 1,105 $ — $ 15,079 Securities sold under agreements to repurchase 250,197 — 250,197 — 250,197 — As of December 31, 2022 Gross Amounts Not Offset in the Statement of Financial Position ($ in thousands) Gross Amounts Recognized Gross Amounts Offset in the Statement of Financial Position Net Amounts of Assets presented in the Statement of Financial Position Financial Instruments Fair Value Collateral Posted Net Amount Assets: Interest rate swaps $ 22,958 $ — $ 22,958 $ — $ 9,010 $ 13,948 Liabilities: Interest rate swaps $ 21,533 $ — $ 21,533 $ — $ — $ 21,533 Interest rate collar 48 — 48 — — 48 Securities sold under agreements to repurchase 270,773 — 270,773 — 270,773 —

Fixed Assets (Tables)

Fixed Assets (Tables)	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Summary of Fixed Assets	A summary of fixed assets is as follows: December 31, ($ in thousands) 2023 2022 Land $ 11,716 $ 12,362 Buildings and leasehold improvements 50,720 50,243 Furniture, fixtures and equipment 21,526 19,569 83,962 82,174 Less accumulated depreciation and amortization 41,281 39,189 Total fixed assets $ 42,681 $ 42,985

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Intangible Assets	The table below presents a summary of intangible assets: ($ in thousands) Years ended December 31, 2023 2022 Core deposit intangible, net, beginning of year $ 16,919 $ 22,286 Amortization (4,601) (5,367) Core deposit intangible, net, end of year $ 12,318 $ 16,919
Expected Amortization Schedule for the Core Deposit Intangible	The following table reflects the amortization schedule for the core deposit intangible at December 31, 2023. Year Core Deposit Intangible ($ in thousands) 2024 $ 3,834 2025 3,068 2026 2,301 2027 1,535 2028 953 After 2028 627 $ 12,318

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2023
Maturities of Time Deposits [Abstract]
Summary of Certificates of Deposit Maturities	Following is a summary of certificates of deposit maturities at December 31, 2023: ($ in thousands) Brokered Customer Total Less than 1 year $ 387,609 $ 714,213 $ 1,101,822 Greater than 1 year and less than 2 years 95,150 61,365 156,515 Greater than 2 years and less than 3 years — 6,073 6,073 Greater than 3 years and less than 4 years — 2,946 2,946 Greater than 4 years and less than 5 years — 1,291 1,291 Greater than 5 years — 4,267 4,267 $ 482,759 $ 790,155 $ 1,272,914

Subordinated Debentures and N_2

Subordinated Debentures and Notes (Tables)	12 Months Ended
	Dec. 31, 2023
Subordinated Borrowings [Abstract]
Schedule of Subordinated Debentures	The following table summarizes the Company’s subordinated debentures at December 31: Amount Maturity Date Initial Call Date (1) Interest Rate ($ in thousands) 2023 2022 EFSC Clayco Statutory Trust I $ 3,196 $ 3,196 December 17, 2033 December 17, 2008 Floats 3 month term SOFR + 2.85% EFSC Capital Trust II 5,155 5,155 June 17, 2034 June 17, 2009 Floats 3 month term SOFR + 2.65% EFSC Statutory Trust III 11,341 11,341 December 15, 2034 December 15, 2009 Floats 3 month term SOFR + 1.97% EFSC Clayco Statutory Trust II 4,124 4,124 September 15, 2035 September 15, 2010 Floats 3 month term SOFR + 1.83% EFSC Statutory Trust IV 10,310 10,310 December 15, 2035 December 15, 2010 Floats 3 month term SOFR + 1.44% EFSC Statutory Trust V 4,124 4,124 September 15, 2036 September 15, 2011 Floats 3 month term SOFR + 1.60% EFSC Capital Trust VI 14,433 14,433 March 30, 2037 March 30, 2012 Floats 3 month term SOFR + 1.60% EFSC Capital Trust VII 4,124 4,124 December 15, 2037 December 15, 2012 Floats 3 month term SOFR + 2.25% JEFFCO Stat Trust I 7,732 7,732 February 22, 2031 February 22, 2011 Fixed 10.20% JEFFCO Stat Trust II (2) 4,604 4,550 March 17, 2034 March 17, 2009 Floats 3 month term SOFR + 2.75% Trinity Capital Trust III (2) 5,473 5,406 September 8, 2034 September 8, 2009 Floats 3 month term SOFR + 2.70% Trinity Capital Trust IV 10,310 10,310 November 23, 2035 August 23, 2010 Fixed 6.88% Trinity Capital Trust V (2) 8,195 8,032 December 15, 2036 September 15, 2011 Floats 3 month term SOFR + 1.65% Total junior subordinated debentures 93,121 92,837 5.75% Fixed-to-floating rate subordinated notes 63,250 63,250 June 1, 2030 June 1, 2025 Fixed 5.75% until June 1, 2025, then floats Benchmark rate (3 month term SOFR) + 5.66% Debt issuance costs (387) (654) Total fixed-to-floating rate subordinated notes 62,863 62,596 Total subordinated debentures and notes $ 155,984 $ 155,433 (1) Callable each quarter after initial call date. (2) Purchase accounting adjustments are reflected in the balance and also impact the effective interest rate.

Federal Home Loan Bank Advanc_2

Federal Home Loan Bank Advances (Tables)	12 Months Ended
	Dec. 31, 2023
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
Federal Home Loan Bank, Advances [Table Text Block]	The following table summarizes the Company’s FHLB advances at December 31: 2023 2022 ($ in thousands) Outstanding Balance Weighted Rate Outstanding Balance Weighted Rate Non-amortizing fixed advance $ — — % $ 100,000 4.57 %

Other Borrowings (Tables)

Other Borrowings (Tables)	12 Months Ended
	Dec. 31, 2023
Debt Instrument [Line Items]
Schedule of Long-term Debt Instruments [Table Text Block]	A summary of the Term Loan is as follows: December 31, ($ in thousands) 2023 2022 Term Loan $ 11,429 $ 17,143 Average balance during the year 14,959 20,681 Maximum balance outstanding at any month-end 17,143 22,857 Weighted average interest rate during the year 6.44 % 2.94 % Average interest rate at December 31 6.70 % 5.48
Other Borrowings
Debt Instrument [Line Items]
Summary of Other Borrowings	A summary of securities sold under agreements to repurchase is as follows: December 31, ($ in thousands) 2023 2022 Securities sold under agreement to repurchase $ 250,197 $ 270,773 Average balance during the year 168,745 211,039 Maximum balance outstanding at any month-end 250,197 284,269 Average interest rate during the year 2.16 % 0.24 % Average interest rate at December 31 3.56 % 1.44 %

Regulatory Capital (Tables)

Regulatory Capital (Tables)	12 Months Ended
	Dec. 31, 2023
Regulated Operations [Abstract]
Schedule of Actual Capital Amounts and Ratios	The capital ratios are presented in the following table: December 31, 2023 December 31, 2022 EFSC Bank EFSC Bank To Be Well-Capitalized Minimum Ratio Common Equity Tier 1 Capital to Risk Weighted Assets 11.3 % 12.2 % 11.1 % 12.1 % 6.5 % 7.0 % Tier 1 Capital to Risk Weighted Assets 12.7 % 12.2 % 12.6 % 12.1 % 8.0 % 8.5 % Total Capital to Risk Weighted Assets 14.2 % 13.2 % 14.2 % 13.1 % 10.0 % 10.5 % Leverage Ratio (Tier 1 Capital to Average Assets) 11.0 % 10.6 % 10.9 % 10.5 % 5.0 % N/A

Shareholders' Equity and Comp_2

Shareholders' Equity and Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Various Information	At December 31, 2023 and 2022, the Company has reserved the following shares of its authorized but unissued common stock for possible future issuance in connection with the following: December 31, 2023 December 31, 2022 Outstanding performance units (maximum issuance) 273,202 209,702 Outstanding RSU’s 290,141 269,868 Outstanding options 333,608 222,032 2018 Stock Incentive Plan 732,427 342,157 Non-Management Director Plan 130,162 55,878 2018 Employee Stock Purchase Plan 447,655 515,941 Total 2,207,195 1,615,578
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The following table presents the changes in accumulated other comprehensive income (loss) after-tax by component: ($ in thousands) Net Unrealized Gain (Loss) on Available-for-Sale Debt Securities Unamortized Gain (Loss) on Held-to-Maturity Securities Net Unrealized Gain (Loss) on Cash Flow Hedges Total Balance, December 31, 2020 $ 22,320 $ 19,308 $ (4,508) $ 37,120 Net change (17,049) (3,624) 2,330 (18,343) Balance, December 31, 2021 $ 5,271 $ 15,684 $ (2,178) $ 18,777 Net change (149,623) (2,696) 3,210 (149,109) Transfer from available-for-sale to held-to-maturity (197) 197 — — Balance, December 31, 2022 $ (144,549) $ 13,185 $ 1,032 $ (130,332) Net change 31,705 (2,605) 217 29,317 Balance, December 31, 2023 $ (112,844) $ 10,580 $ 1,249 $ (101,015)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	The following table presents the pre-tax and after-tax changes in the components of other comprehensive income: 2023 2022 2021 ($ in thousands) Pre-tax Tax effect After-tax Pre-tax Tax effect After-tax Pre-tax Tax effect After-tax Change in unrealized gain (loss) on available-for-sale securities $ 42,988 $ 10,833 $ 32,155 $ (200,030) $ (50,407) $ (149,623) $ (22,701) $ (5,652) $ (17,049) Reclassification of gain on sale of available-for-sale securities(a) (601) (151) (450) — — — — — — Reclassification of gain on held-to-maturity securities(a) (3,483) (878) (2,605) (3,605) (909) (2,696) (4,672) (1,048) (3,624) Change in unrealized gain (loss) on cash flow hedges (656) (165) (491) 3,741 943 2,798 1,533 372 1,161 Reclassification of loss on cash flow hedges(b) 945 237 708 551 139 412 1,543 374 1,169 Total other comprehensive income (loss) $ 39,193 $ 9,876 $ 29,317 $ (199,343) $ (50,234) $ (149,109) $ (24,297) $ (5,954) $ (18,343) (a) The pre-tax amount is reported in noninterest income/expense in the Consolidated Statements of Income. (b) The pre-tax amount is reported in interest income/expense in the Consolidated Statements of Income.
Share-based Payment Arrangement, Cost by Plan [Table Text Block]	The following table summarizes share-based compensation expense: ($ in thousands) 2023 2022 2021 Performance stock units $ 2,879 $ 2,391 $ 1,777 Restricted stock units 5,014 4,156 3,109 Stock options 1,609 916 396 Employee stock purchase plan 644 543 735 Total share-based compensation expense $ 10,146 $ 8,006 $ 6,017
Outstanding Long Term Incentive Awards [Table Text Block]	Information related to the outstanding grants at December 31, 2023 is shown below: ($ in thousands, except per share data) 2021 - 2023 Cycle 2022 - 2024 Cycle 2023 - 2025 Cycle Shares issuable at target 38,412 41,765 56,424 Maximum shares issuable 76,824 83,530 112,848 Unrecognized compensation cost $ 77 $ 1,001 $ 2,340 Weighted average grant date fair value (per share) $ 47.16 $ 51.91 $ 62.19 Maximum Shares Issuable Outstanding at December 31, 2022 209,702 Granted 112,848 Vested (issued 31,142 shares) (49,348) Outstanding at December 31, 2023 273,202
Summary of Employee Stock Option and SSARs Activity	Following is a summary of stock option activity for 2023. Shares Weighted Weighted Outstanding at December 31, 2022 222,032 $ 46.12 Granted 122,161 54.46 Exercised (909) 45.28 Forfeited (9,676) 48.30 Outstanding at December 31, 2023 333,608 $ 49.11 8.2 years Exercisable at December 31, 2023 53,208 $ 45.30 7.5 years
Summary of Restricted Stock Units Activity	A summary of the status of the Company’s RSU awards as of December 31, 2023 and changes during the year then ended is presented below. Shares Weighted Average Grant Date Outstanding at December 31, 2022 269,868 $ 46.49 Granted 107,353 50.46 Vested (77,195) 43.60 Forfeited (9,885) 47.65 Outstanding at December 31, 2023 290,141 $ 48.69
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The following weighted average assumptions were used for grants issued during the year ended December 31, 2023. Weighted Average Risk Free Interest Rate 4.09% Expected Dividend Yield 1.84% Expected Volatility 34.74% Expected Term (years) 6.3
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Various Information	Various information related to the RSUs is shown below. ($ in thousands) 2023 2022 2021 Total fair value of awards vesting during the year $ 3,894 $ 3,888 $ 2,855 Unrecognized compensation cost 8,438 8,507 4,622 Expected years to recognize unearned compensation 1.7 years 2.0 years 1.9 years Weighted average grant date fair value $ 50.46 $ 47.96 $ 44.01
Stock Plan for Non-Management Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Various Information	Various information related to the Director Plan is shown below. 2023 2022 2021 Shares granted 27,016 23,343 12,998 Weighted average grant date fair value $ 41.31 $ 42.17 $ 46.05

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The components of income tax expense (benefit) for the years ended December 31, are as follows: Year ended December 31, ($ in thousands) 2023 2022 2021 Current: Federal $ 40,471 $ 42,718 $ 29,835 State and local 9,616 11,505 5,198 Total current 50,087 54,223 35,033 Deferred: Federal 283 1,853 870 State and local 2,097 341 (325) Total deferred 2,380 2,194 545 Total income tax expense $ 52,467 $ 56,417 $ 35,578
Schedule of Income Tax Rate Reconciliation	A reconciliation of expected income tax expense, computed by applying the statutory federal income tax rate to income before income taxes reflected in the Consolidated Statements of Income is as follows: Year ended December 31, ($ in thousands) 2023 2022 2021 Income tax expense at statutory rate $ 51,770 $ 54,487 $ 35,413 Increase (reduction) in income tax resulting from: Tax-exempt interest income, net (4,942) (4,351) (3,198) State and local income taxes, net 9,445 9,767 4,936 Bank-owned life insurance (888) (545) (713) Non-deductible expenses 2,059 926 1,090 Tax benefit of low-income housing tax credit ("LIHTC") investments, net (56) (195) (132) Excess tax benefits (251) (68) 146 Federal tax credits (4,364) (3,661) (1,136) Non-taxable donation to charitable foundation — — (263) Other, net (306) 57 (565) Total income tax expense $ 52,467 $ 56,417 $ 35,578
Schedule of Deferred Tax Assets and Deferred Tax Liabilities	The tax effect of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities is as follows: Year ended December 31, ($ in thousands) 2023 2022 Deferred tax assets: Allowance for loan losses $ 33,423 $ 34,507 Loans held-for-sale 4,463 5,917 Other real estate — 179 Deferred compensation 4,746 3,527 Accrued compensation 6,047 6,294 Unrealized losses on securities, net 33,687 44,094 Net operating losses and tax credits 5,544 5,829 Lease liability accrual 7,101 4,545 Other investments 5,341 4,293 Research and experimental expenses 1,944 — Fixed assets 2,341 2,867 Other deferred tax assets 4,823 3,596 Total deferred tax assets 109,460 115,648 Deferred tax liabilities: Acquired loans 2,388 2,212 Intangible assets 8,576 8,676 Right of use asset 6,301 4,374 Other investments 11,834 7,530 Other deferred tax liabilities 841 1,065 Total deferred tax liabilities 29,940 23,857 Net deferred tax asset before valuation allowance 79,520 91,791 Less: valuation allowance 2,812 2,830 Net deferred tax asset $ 76,708 $ 88,961
Schedule of Unrecognized Tax Benefits	The activity in the gross liability for unrecognized tax benefits was as follows: ($ in thousands) 2023 2022 2021 Balance at beginning of year $ 2,724 $ 2,697 $ 3,157 Additions based on tax positions related to the current year 727 683 563 Additions for tax positions of prior years 24 47 436 Settlements for tax positions of prior years — (82) (1,289) Settlements or lapse of statute of limitations (398) (621) (170) Balance at end of year $ 3,077 $ 2,724 $ 2,697

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of Commitments	The contractual amounts of off-balance-sheet financial instruments are as follows: ($ in thousands) December 31, 2023 December 31, 2022 Commitments to extend credit $ 2,937,760 $ 3,113,966 Letters of credit 107,082 68,544 Tax credits 3,514 4,075 Limited partnership commitments 32,548 35,090

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Summary of Financial Instruments Measured at Fair Value on a Recurring Basis	The following table summarizes financial instruments measured at fair value on a recurring basis, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value. December 31, 2023 ($ in thousands) Quoted Prices in Significant Significant Total Fair Assets Securities available-for-sale Obligations of U.S. Government-sponsored enterprises $ — $ 296,446 $ — $ 296,446 Obligations of states and political subdivisions — 432,171 — 432,171 Residential mortgage-backed securities — 700,381 — 700,381 Corporate debt securities — 181,701 — 181,701 U.S. Treasury Bills — 7,574 — 7,574 Total securities available-for-sale — 1,618,273 — 1,618,273 Other investments — 2,941 — 2,941 Derivatives — 17,789 — 17,789 Total assets $ — $ 1,639,003 $ — $ 1,639,003 Liabilities Derivatives $ — $ 16,184 $ — $ 16,184 Total liabilities $ — $ 16,184 $ — $ 16,184 December 31, 2022 ($ in thousands) Quoted Prices in Significant Significant Total Fair Assets Securities available-for-sale Obligations of U.S. Government-sponsored enterprises $ — $ 237,785 $ — $ 237,785 Obligations of states and political subdivisions — 417,444 — 417,444 Residential mortgage-backed securities — 659,404 — 659,404 Corporate debt securities — 12,640 — 12,640 U.S. Treasury Bills — 208,534 — 208,534 Total securities available-for-sale — 1,535,807 — 1,535,807 Other investments — 2,667 — 2,667 Derivative financial instruments — 22,958 — 22,958 Total assets $ — $ 1,561,432 $ — $ 1,561,432 Liabilities Derivative financial instruments $ — $ 21,581 $ — $ 21,581 Total liabilities $ — $ 21,581 $ — $ 21,581
Summary of Financial Instruments and Non-Financial Assets Measured at Fair Value on a Non-Recurring Basis	The following tables present financial instruments and non-financial assets still held as of the reporting date measured at fair value on a non-recurring basis. December 31, 2023 (1) (1) (1) (1) ($ in thousands) Total Fair Value Quoted Prices in Active Significant Significant Individually-evaluated loans $ 5,138 $ — $ — $ 5,138 Other real estate 5,736 — — 5,736 Total $ 10,874 $ — $ — $ 10,874 December 31, 2022 (1) (1) (1) (1) ($ in thousands) Total Fair Value Quoted Prices in Active Significant Significant Other real estate 269 — — 269 Loan servicing asset 1,027 — 1,027 — Total $ 1,296 $ — $ 1,027 $ 269
Summary of Carrying Amount and Fair Values of Financial Instruments Reported on the Balance Sheets	Following is a summary of the carrying amounts and fair values of the Company’s financial instruments on the consolidated balance sheets at December 31, 2023 and 2022. This summary excludes certain financial assets and liabilities for which carrying value approximates fair value and financial instruments that are recorded at fair value on a recurring basis disclosed above. Financial instruments for which carrying values approximate fair value include cash and due from banks, federal funds sold, interest bearing deposits, accrued interest receivable/payable, demand, savings and money market deposits. December 31, 2023 December 31, 2022 ($ in thousands) Carrying Amount Estimated fair value Level Carrying Amount Estimated fair value Level Balance sheet assets Securities held-to-maturity $ 750,434 $ 696,647 Level 2 $ 709,915 $ 628,517 Level 2 Other investments 63,255 63,255 Level 2 61,123 61,123 Level 2 Loans held-for-sale 359 359 Level 2 1,228 1,228 Level 2 Loans, net 10,749,347 10,392,551 Level 3 9,600,206 9,328,844 Level 3 State tax credits, held-for-sale 22,115 23,897 Level 3 27,700 28,880 Level 3 Servicing asset 2,861 3,799 Level 2 3,648 3,905 Level 2 Balance sheet liabilities Certificates of deposit $ 1,272,914 $ 1,265,905 Level 3 $ 530,708 $ 512,229 Level 3 Subordinated debentures and notes 155,984 154,354 Level 2 155,433 152,679 Level 2 FHLB advances — — Level 2 100,000 100,004 Level 2 Other borrowings 297,829 274,658 Level 2 324,119 324,119 Level 2

Parent Company Only Condensed_2

Parent Company Only Condensed Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2023
Condensed Financial Information Disclosure [Abstract]
Condensed Balance Sheet Of Parent Company Only Disclosure	Condensed Balance Sheets December 31, ($ in thousands) 2023 2022 Assets Cash $ 100,418 $ 99,018 Investment in Bank 1,748,260 1,553,657 Investment in nonbank subsidiaries 11,267 16,476 Other assets 27,701 30,312 Total assets $ 1,887,646 $ 1,699,463 Liabilities and Shareholders’ Equity Subordinated debentures and notes $ 155,984 $ 155,433 Notes payable 11,429 17,143 Accounts payable and other liabilities 4,165 4,624 Shareholders' equity 1,716,068 1,522,263 Total liabilities and shareholders' equity $ 1,887,646 $ 1,699,463
Condensed Income Statement Of Parent Company Only Disclosure	Condensed Statements of Income Year ended December 31, ($ in thousands) 2023 2022 2021 Income: Dividends from Bank $ 45,000 $ 75,000 $ 95,000 Dividends from nonbank subsidiaries 4,875 1,700 2,000 Other 7,736 1,086 3,600 Total income 57,611 77,786 100,600 Expenses: Interest expense 10,856 9,825 11,406 Other expenses 8,774 8,580 11,037 Total expenses 19,630 18,405 22,443 Income before taxes and equity in undistributed earnings of subsidiaries 37,981 59,381 78,157 Income tax benefit 2,520 3,585 3,710 Net income before equity in undistributed earnings of subsidiaries 40,501 62,966 81,867 Equity in undistributed earnings of subsidiaries 153,558 140,077 51,188 Net income $ 194,059 $ 203,043 $ 133,055
Condensed Cash Flow Statment Of Parent Company Only Disclosure	Condensed Statements of Cash Flows Year ended December 31, ($ in thousands) 2023 2022 2021 Cash flows from operating activities: Net income $ 194,059 $ 203,043 $ 133,055 Adjustments to reconcile net income to net cash provided by operating activities: Share-based compensation 4,439 8,006 6,017 Net income of subsidiaries (203,433) (216,777) (148,188) Dividends from subsidiaries 49,875 76,700 97,000 Other, net (421) 6,102 (16) Net cash provided by operating activities 44,519 77,074 87,868 Cash flows from investing activities: Proceeds from acquisitions, net of cash acquired — — 2,346 Purchases of other investments (1,002) (2,187) (2,204) Proceeds from distributions on other investments 3,314 3,878 2,656 Net cash provided by investing activities 2,312 1,691 2,798 Cash flows from financing activities: Payments for the redemption of subordinated notes — — (50,000) Repayment of long-term debt (5,714) (5,714) (7,143) Dividends paid on common stock (37,368) (33,602) (26,153) Payments for the repurchase of common stock — (32,923) (60,589) Proceeds from issuance of preferred stock — — 71,988 Dividends paid on preferred stock (3,750) (4,041) — Other 1,401 1,773 516 Net cash used in financing activities (45,431) (74,507) (71,381) Net increase in cash and cash equivalents 1,400 4,258 19,285 Cash and cash equivalents, beginning of year 99,018 94,760 75,475 Cash and cash equivalents, end of year $ 100,418 $ 99,018 $ 94,760 Supplemental disclosures of cash flow information: Noncash transactions: Common shares issued in connection with acquisitions $ — $ — $ 343,650

Supplemental Financial Inform_2

Supplemental Financial Information (Tables)	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Financial Information	The following table presents other income and other expense components that primarily exceed one percent of the aggregate of total interest income and noninterest income in one or more of the periods indicated: Year ended December 31, ($ in thousands) 2023 2022 2021 Other income: Community development fees $ 4,037 $ 5,304 $ 5,491 Bank-owned life insurance 3,688 3,324 2,938 Other income 15,187 8,089 13,719 Total other noninterest income $ 22,912 $ 16,717 $ 22,148 Other expense: Amortization of intangibles $ 4,601 $ 5,367 $ 5,691 Banking expenses 8,110 7,212 6,123 FDIC and other insurance 13,164 7,098 5,789 Loan, legal expenses 8,639 6,943 7,130 Outside services 7,040 5,399 4,992 Other expenses 32,332 25,854 18,739 Total other noninterest expenses $ 73,886 $ 57,873 $ 48,464

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items]
Operating Lease, Right-of-Use Asset	$ 25,406	$ 17,355
Number of reportable segments | segment	1
Operating Lease, Liability	$ 28,635	18,038
Accrued interest receivable	$ 66,700	$ 48,100
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Servicing Asset	$ 2,900
Furniture, Fixtures and Equipment [Member] | Minimum
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	3 years
Furniture, Fixtures and Equipment [Member] | Maximum
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	10 years
Building and Leasehold Improvements [Member] | Minimum
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	10 years
Building and Leasehold Improvements [Member] | Maximum
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	40 years
Core Deposits [Member]
Property, Plant and Equipment [Line Items]
Finite-lived intangible assets useful life	10 years
State and Local Jurisdiction [Member]
Property, Plant and Equipment [Line Items]
Right to receive state tax credit at agreed upon rates	10 years

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 190,309	$ 199,002	$ 133,055
Weighted average common shares outstanding (in shares)	37,370,000	37,381,000	34,436,000
Additional dilutive common stock equivalents (in shares)	137,000	119,000	60,000
Weighted average diluted common shares outstanding (in shares)	37,507,000	37,500,000	34,496,000
Basic earnings per common share (in dollars per share)	$ 5.09	$ 5.32	$ 3.86
Diluted earnings per common share (in dollars per share)	$ 5.07	$ 5.31	$ 3.86
Common stock equivalents excluded from earnings per share calculations due to anti-dilutive effect (in shares)	419,000	224,000	158,000

Investments - Schedule of Avail

Investments - Schedule of Available-for-sale and Held-to-Maturity Securities Reconciliation (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	$ 1,769,134	$ 1,729,054
Gross Unrealized Gains	1,603	481
Gross Unrealized Losses	(152,464)	(193,728)
Securities available-for-sale	1,618,273	1,535,807
Debt Securities, Held-to-maturity [Abstract]
Amortized Cost	751,219	710,650
Gross Unrealized Gains	7,294	2,484
Gross Unrealized Losses	(61,866)	(84,617)
Allowance for credit losses	(785)	(735)
Debt Securities, Held-to-maturity, Fair Value	696,647	628,517
Total securities held-to-maturity, net	750,434	709,915
Obligations of U.S. Government-sponsored enterprises
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	316,511	266,090
Gross Unrealized Gains	303	0
Gross Unrealized Losses	(20,368)	(28,305)
Securities available-for-sale	296,446	237,785
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	500,881	507,842
Gross Unrealized Gains	57	27
Gross Unrealized Losses	(68,767)	(90,425)
Securities available-for-sale	432,171	417,444
Debt Securities, Held-to-maturity [Abstract]
Amortized Cost	575,699	529,012
Gross Unrealized Gains	7,078	2,321
Gross Unrealized Losses	(47,461)	(65,347)
Debt Securities, Held-to-maturity, Fair Value	535,316	465,986
Agency mortgage-backed securities
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	758,283	727,931
Gross Unrealized Gains	1,181	453
Gross Unrealized Losses	(59,083)	(68,980)
Securities available-for-sale	700,381	659,404
Debt Securities, Held-to-maturity [Abstract]
Amortized Cost	52,100	57,018
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(5,424)	(6,416)
Debt Securities, Held-to-maturity, Fair Value	46,676	50,602
US Treasury Bill Securities [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	8,750	13,750
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,176)	(1,110)
Securities available-for-sale	7,574	12,640
Corporate Debt Securities [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	184,709	213,441
Gross Unrealized Gains	62	1
Gross Unrealized Losses	(3,070)	(4,908)
Securities available-for-sale	181,701	208,534
Debt Securities, Held-to-maturity [Abstract]
Amortized Cost	123,420	124,620
Gross Unrealized Gains	216	163
Gross Unrealized Losses	(8,981)	(12,854)
Debt Securities, Held-to-maturity, Fair Value	$ 114,655	$ 111,929

Investments - Investments Class

Investments - Investments Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Available for sale, Amortized Cost
Due in one year or less	$ 141,734
Due after one year through five years	327,794
Due after five years through ten years	130,737
Due after ten years	410,586
Agency mortgage-backed securities	758,283
Amortized Cost	1,769,134	$ 1,729,054
Available for sale, Estimated Fair Value
Due in one year or less	140,353
Due after one year through five years	309,375
Due after five years through ten years	117,025
Due after ten years	351,139
Agency mortgage-backed securities	700,381
Securities available-for-sale	1,618,273	1,535,807
Held to maturity, Amortized Cost
Due in one year or less	1,230
Due after one year through five years	81,887
Due after five years through ten years	190,949
Due after ten years	425,053
Agency mortgage-backed securities	52,100
Amortized Cost	751,219	710,650
Held to maturity, Estimated Fair Value
Due in one year or less	1,230
Due after one year through five years	77,227
Due after five years through ten years	183,396
Due after ten years	388,118
Agency mortgage-backed securities	46,676
Held to maturity, fair value	$ 696,647	$ 628,517

Investments - Schedule of Unrea

Investments - Schedule of Unrealized Loss on Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 127,160	$ 722,676
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	714	45,806
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,326,392	756,002
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	151,750	147,922
Debt Securities, Available-for-sale, Unrealized Loss Position	1,453,552	1,478,678
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	152,464	193,728
Obligations of U.S. Government-sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	25,886	73,738
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	85	6,249
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	247,027	163,047
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	20,283	22,056
Debt Securities, Available-for-sale, Unrealized Loss Position	272,913	236,785
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	20,368	28,305
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	1,168	103,179
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	163	13,501
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	428,171	311,634
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	68,604	76,924
Debt Securities, Available-for-sale, Unrealized Loss Position	429,339	414,813
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	68,767	90,425
Agency mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	58,249	334,431
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	417	20,038
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	540,032	281,321
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	58,666	48,942
Debt Securities, Available-for-sale, Unrealized Loss Position	598,281	615,752
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	59,083	68,980
US Treasury Bill Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	41,857	198,688
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	49	4,908
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	103,588	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	3,021	0
Debt Securities, Available-for-sale, Unrealized Loss Position	145,445	198,688
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	3,070	4,908
Corporate Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	0	12,640
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	1,110
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	7,574	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	1,176	0
Debt Securities, Available-for-sale, Unrealized Loss Position	7,574	12,640
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 1,176	$ 1,110

Investments - Schedule of Reali

Investments - Schedule of Realized Gain (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Gross gains realized	$ 601	$ 0	$ 0
Proceeds from sales	$ 40,393	$ 0	$ 27,135

Investments - Narrative (Detail

Investments - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) number_of_securities	Dec. 31, 2022 USD ($) number_of_securities	Dec. 31, 2021 USD ($)
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 1,769,134,000	$ 1,729,054,000
Other investments	$ 66,195,000	$ 63,790,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | number_of_securities	753	740
Gross Unrealized Gains	$ 1,603,000	$ 481,000
Maximum percentage of shareholders' equity security holdings held of one issuer	10%	10%
Available-for-sale securities pledged as collateral, fair value	$ 1,600,000,000	$ 734,500,000
Weighted average life (in years)	5 years
ACL on held-to-maturity securities	$ 785,000	735,000
Sale of debt securities, available-for-sale	40,393,000	0	$ 27,135,000
Gross gains realized	601,000	0	$ 0
Provisions For Credit Losses, Available-For-Sale	4,200,000
Debt Securities, Provision For Credit Losses, Chargeoff	4,200,000
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Accrued interest receivable, held-to-maturity securities	6,500,000	5,800,000
Des Moines
Debt Securities, Available-for-sale [Line Items]
Other investments	7,800,000	14,000,000
Reclassified to Held to Maturity [Member]
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Gains	14,100,000	17,600,000
Debt Securities, Available-for-sale, Amortized Cost	$ 0	$ 116,700,000

Loans - Summary of Portfolio Lo

Loans - Summary of Portfolio Loans by Category (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, before unearned loan fees	$ 10,884,118	$ 9,737,138
Non-Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, before unearned loan fees	10,888,345	9,744,427
Unearned loan fees, net	(4,227)	(7,289)
Loans, including unearned loan fees	10,884,118	9,737,138
Non-Covered Loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, before unearned loan fees	4,674,056	3,859,964
Non-Covered Loans | Commercial - investor owned
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, before unearned loan fees	2,452,402	2,357,820
Non-Covered Loans | CRE - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, before unearned loan fees	2,344,117	2,270,551
Non-Covered Loans | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, before unearned loan fees	760,122	611,565
Non-Covered Loans | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, before unearned loan fees	371,995	395,537
Non-Covered Loans | Total real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, before unearned loan fees	5,928,636	5,635,473
Non-Covered Loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, before unearned loan fees	$ 285,653	$ 248,990

Loans - Narrative (Details)

Loans - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	$ 4,800,000	$ 2,800,000
Allowance for Credit Losses, Qualitative Adjustment	37,400
Financing Receivable, Credit Loss, Expense (Reversal), Acquisition Related Expense		25,400
Financing Receivable, Purchased with Credit Deterioration, Discount (Premium)	9,600	11,900
Financing Receivable, Consumer Mortgage Loan Secured By Residential Real Estate In Process Of Foreclosure, Amount	1,000	0
Impaired Financing Receivable, Recorded Investment, Excluding Guaranteed Balances	10,700	6,700
Financing Receivable, Credit Loss, Expense (Reversal), Additional Provision	$ 700	3,600
Loans	LOANS The following table presents a summary of loans by category: ($ in thousands) December 31, 2023 December 31, 2022 Commercial and industrial $ 4,674,056 $ 3,859,964 Real estate loans: Commercial - investor owned 2,452,402 2,357,820 Commercial - owner occupied 2,344,117 2,270,551 Construction and land development 760,122 611,565 Residential 371,995 395,537 Total real estate loans 5,928,636 5,635,473 Other 285,653 248,990 Loans, before unearned loan fees 10,888,345 9,744,427 Unearned loan fees, net (4,227) (7,289) Loans, including unearned loan fees $ 10,884,118 $ 9,737,138 The loan balance includes a net premium on acquired loans of $9.6 million and $11.9 million at December 31, 2023 and 2022, respectively. At December 31, 2023 and 2022 loans of $4.8 billion and $2.8 billion, respectively, were pledged to the FHLB and the Federal Reserve. Consumer mortgage loans secured by residential real estate in process of foreclosure totaled $1.0 million at December 31, 2023. There were no consumer mortgage loans secured by residential real estate in process of foreclosure at December 31, 2022. Loans to executive officers and directors, or to entities in which such individuals had beneficial interests as a shareholder, officer, or director totaled $0.1 million and $0.1 million for the year ended December 31, 2023 and 2022, respectively. Such loans were made in the normal course of business on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other customers and did not involve more than the normal risk of collectibility. A summary of the activity, by loan category, in the allowance for credit losses on loans for 2021, 2022, and 2023 is as follows: ($ in thousands) Commercial and industrial CRE - investor owned CRE - owner occupied Construction and land development Residential real estate Other Total Balance at December 31, 2021 Allowance for credit losses on loans: Balance, beginning of year $ 58,812 $ 32,062 $ 17,012 $ 21,413 $ 4,585 $ 2,787 $ 136,671 Provision (benefit) for credit losses 14,361 568 (550) (7,365) 3,900 2,079 12,993 Initial allowance on acquired PCD loans 1,077 3,651 1,504 37 — 737 7,006 Charge-offs (12,113) (2,487) (602) (3) (1,521) (459) (17,185) Recoveries 1,688 2,083 196 454 963 172 5,556 Balance, end of year $ 63,825 $ 35,877 $ 17,560 $ 14,536 $ 7,927 $ 5,316 $ 145,041 Balance at December 31, 2022 Allowance for credit losses on loans: Balance, beginning of year $ 63,825 $ 35,877 $ 17,560 $ 14,536 $ 7,927 $ 5,316 $ 145,041 Provision (benefit) for credit losses (6,121) 46 4,867 (3,145) 540 (397) (4,210) Charge-offs (6,082) (478) (395) — (2,068) (370) (9,393) Recoveries 2,213 746 720 53 1,529 233 5,494 Balance, end of year $ 53,835 $ 36,191 $ 22,752 $ 11,444 $ 7,928 $ 4,782 $ 136,932 Balance at December 31, 2023 Allowance for credit losses on loans: Balance, beginning of year $ 53,835 $ 36,191 $ 22,752 $ 11,444 $ 7,928 $ 4,782 $ 136,932 Provision (benefit) for credit losses 38,308 (335) 523 (1,300) (2,109) 796 35,883 Charge-offs (36,302) (4,869) — (9) (656) (1,379) (43,215) Recoveries 3,045 293 130 63 979 661 5,171 Balance, end of year $ 58,886 $ 31,280 $ 23,405 $ 10,198 $ 6,142 $ 4,860 $ 134,771 The Company recorded a provision for credit losses on loans of $35.9 million and a provision benefit for credit losses of $4.2 million for the years ended December 31, 2023 and 2022, respectively. An additional provision for credit losses of $0.7 million and $3.6 million was recorded in 2023 and 2022, respectively, for securities, unfunded commitments and accrued interest on nonaccrual loans. Acquisition-related provision expense of $25.4 million in 2021 was included in the provision for credit losses. This expense, commonly referred to as the “CECL double-count”, is recognized when a loan portfolio is acquired. The CECL methodology incorporates various economic scenarios. The Company utilizes three forecasts in the model; Moody’s baseline, a stronger near-term growth upside and a moderate recession downside forecast. The Company weights these scenarios at 40%, 30%, and 30%, respectively, which added approximately $12.3 million to the ACL over the baseline model at December 31, 2023. The forecasts at the end of 2023 incorporate an expectation that the federal funds rate has peaked at the range of 5.25% to 5.50% and will begin falling in the latter half of 2024. It is also assumed that the bank failures in early 2023 were not an indication of a broader problem in the industry. The Company has also recognized various risks posed by loans in certain segments, including the commercial office sector, by allocating additional reserves to those segments. Some of the key risks to the forecasts that could result in future provision for credit losses are market reactions to the Federal Reserve policy actions that could push the economy into a recession, persistently higher inflation, tightening in the credit markets, and further weakness in the financial system. In addition to the CECL methodology, the Company incorporates qualitative adjustments into the ACL on loans to capture credit risks inherent within the loan portfolio that are not captured in the DCF model. Included in these risks are 1) changes in lending policies and procedures, 2) actual and expected changes in business and economic conditions, 3) changes in the nature and volume of the portfolio, 4) changes in lending management, 5) changes in volume and the severity of past due loans, 6) changes in the quality of the loan review system, 7) changes in the value of underlying collateral, 8) the existence and effect of concentrations of credit and 9) other factors such as the regulatory, legal and competitive environments and events such as natural disasters and pandemics. At December 31, 2023, the ACL on loans included a qualitative adjustment of $37.4 million. Of this amount, $15.2 million was allocated to Sponsor Finance loans due to their unsecured nature. Gross charge-offs by loan class and year of origination is presented in the following table: December 31, 2023 Term Loans by Origination Year ($ in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Converted to Term Loans Revolving Loans Total Commercial and industrial $ 600 $ 2,999 $ 1,940 $ 2,539 $ — $ — $ 12,533 $ 15,178 $ 35,789 Real estate: Commercial - investor owned — — 170 — 4,692 7 — — 4,869 Construction and land development — — — — — 9 — — 9 Residential — — — — — 480 176 — 656 Other — 3 459 — — 319 12 — 793 Total charge-offs by origination year $ 600 $ 3,002 $ 2,569 $ 2,539 $ 4,692 $ 815 $ 12,721 $ 15,178 $ 42,116 Total gross charge-offs by performing status 1,099 Total gross charge-offs $ 43,215 The following tables present the recorded investment in nonperforming loans by category, excluding government guaranteed balances: December 31, 2023 ($ in thousands) Non-accrual Restructured, accruing Loans over 90 days past due and still accruing interest Total nonperforming loans Nonaccrual loans with no allowance Commercial and industrial $ 7,641 $ — $ 115 $ 7,756 $ 6,179 Real estate: Commercial - investor owned 20,404 — — 20,404 19,466 Commercial - owner occupied 12,972 — 363 13,335 9,010 Construction and land development 1,205 — 64 1,269 464 Residential 959 — — 959 959 Other — — 5 5 — Total $ 43,181 $ — $ 547 $ 43,728 $ 36,078 December 31, 2022 ($ in thousands) Non-accrual Restructured, accruing Loans over 90 days past due and still accruing interest Total nonperforming loans Nonaccrual loans with no allowance Commercial and industrial $ 4,373 $ — $ 70 $ 4,443 $ 1,047 Real estate: Commercial - investor owned 3,023 — — 3,023 — Commercial - owner occupied 1,177 — — 1,177 — Construction and land development 1,192 — — 1,192 1,192 Residential — 73 — 73 — Other 1 — 72 73 — Total $ 9,766 $ 73 $ 142 $ 9,981 $ 2,239 The nonperforming loan balances at December 31, 2023 and December 31, 2022 exclude government guaranteed balances of $10.7 million and $6.7 million, respectively. Interest income recognized on nonaccrual loans was immaterial in the years ending December 31, 2021, 2022 and 2023. Collateral-dependent nonperforming loans by class of loan is presented as of the dates indicated: December 31, 2023 Type of Collateral ($ in thousands) Commercial Real Estate Residential Real Estate Blanket Lien Other Commercial and industrial $ 527 $ 1,864 $ 344 $ 3,445 Real estate: Commercial - investor owned 19,467 — — — Commercial - owner occupied 5,904 1,638 1,831 — Construction and land development 528 741 — — Residential — 959 — — Total $ 26,426 $ 5,202 $ 2,175 $ 3,445 December 31, 2022 Type of Collateral ($ in thousands) Commercial Real Estate Residential Real Estate Blanket Lien Commercial and industrial $ — $ — $ 1,047 Real estate: Commercial - investor owned 2,238 785 — Commercial - owner occupied 1,177 — — Construction and land development — 1,192 — Residential — 73 — Total $ 3,415 $ 2,050 $ 1,047 The aging of the recorded investment in past due loans by class and category is presented as of the dates indicated. December 31, 2023 ($ in thousands) 30-89 Days 90 or More Total Current Total Commercial and industrial $ 3,445 $ 9,037 $ 12,482 $ 4,661,574 $ 4,674,056 Real estate: Commercial - investor owned 1,905 18,395 20,300 2,432,102 2,452,402 Commercial - owner occupied 8,409 14,142 22,551 2,321,566 2,344,117 Construction and land development 770 1,908 2,678 757,444 760,122 Residential 1,620 959 2,579 369,416 371,995 Other 82 4 86 285,567 285,653 Loans, before unearned loan fees 16,231 44,445 60,676 10,827,669 10,888,345 Unearned loan fees, net (4,227) Total $ 10,884,118 December 31, 2022 ($ in thousands) 30-89 Days 90 or More Total Current Total Commercial and industrial $ 555 $ 2,373 $ 2,928 $ 3,857,036 $ 3,859,964 Real estate: Commercial - investor owned — 1,135 1,135 2,356,685 2,357,820 Commercial - owner occupied 8,628 164 8,792 2,261,759 2,270,551 Construction and land development 9 1,192 1,201 610,364 611,565 Residential 1,227 — 1,227 394,310 395,537 Other 18 72 90 248,900 248,990 Loans, before unearned loan fees 10,437 4,936 15,373 9,729,054 9,744,427 Unearned loan fees, net (7,289) Total $ 9,737,138 The allowance for credit losses incorporates an estimate of lifetime expected credit losses and is recorded on each asset upon origination or acquisition. The starting point for the estimate of the allowance for credit losses is historical loss information, which includes losses from modifications of receivables to borrowers experiencing financial difficulty. The Company uses a probability of default and loss given default model to determine the allowance for credit losses. An assessment of whether a borrower is experiencing financial difficulty is made on the date of a modification. The effect of most modifications made to borrowers experiencing financial difficulty is already included in the allowance for credit losses because of the measurement methodologies used to estimate the allowance. The most common concession the Company provides to borrowers experiencing financial difficulty is a term extension. In limited circumstances, the Company may modify loans by providing principal forgiveness or an interest rate reduction. When principal forgiveness is provided, the amortized cost basis of the asset is written off against the allowance for credit losses. The amount of the principal forgiveness is deemed to be uncollectible; therefore, that portion of the loan is written off, resulting in a reduction of the amortized cost basis and a corresponding adjustment to the allowance for credit losses. In some cases, the Company will modify a loan by providing multiple types of concessions. Typically, one type of concession, such as a term extension, is granted initially. If the borrower continues to experience financial difficulty, another concession, such as an interest rate reduction or principal forgiveness, may be granted. The following table shows the recorded investment at the end of the reporting period for loans modified to borrowers experiencing financial difficulty, disaggregated by loan class and type of concession granted: Term Extension Twelve months ended ($ in thousands) December 31, 2023 Percent of Total Loan Class Commercial and industrial $ 39,437 0.84 % Real estate: Commercial - investor owned 9,411 0.38 % Commercial - owner occupied 94 — % Construction and land development 1,137 0.15 % Residential 7,601 2.04 % Other 4 — % Total $ 57,684 The following table summarizes the financial impacts of loan modifications made to borrowers experiencing financial difficulty and outstanding at the end of the year: Weighted Average Term Extension (in months) Twelve months ended December 31, 2023 Commercial and industrial 5 Real estate: Commercial - investor owned 4 Commercial - owner occupied 3 Construction and land development 7 Residential 3 Other 48 The following table shows the aging of the recorded investment in modified loans by class: December 31, 2023 ($ in thousands) Current 30-89 Days 90 or More Total Commercial and industrial $ 39,187 $ 250 $ — $ 39,437 Real estate: Commercial - investor owned 9,411 — — 9,411 Commercial - owner occupied — 94 — 94 Construction and land development 1,137 — — 1,137 Residential 7,527 74 — 7,601 Other — 4 — 4 Total $ 57,262 $ 422 $ — $ 57,684 As of December 31, 2023, no loans experienced a default subsequent to being granted a term extension modification in the prior twelve months. Default is defined as movement to nonperforming status, foreclosure or charge-off. As of December 31, 2023, the Company allocated an immaterial amount in specific reserves to loans that have been restructured. The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt, such as current financial information, payment experience, credit documentation, and current economic factors among other factors. This analysis is performed on a quarterly basis. The Company uses the following definitions for risk ratings: • Grades 1, 2, and 3 – Includes loans to borrowers with a continuous record of strong earnings, sound balance sheet condition and capitalization, ample liquidity with solid cash flow, and whose management team has experience and depth within their industry. • Grade 4 – Includes loans to borrowers with positive trends in profitability, satisfactory capitalization and balance sheet condition, and sufficient liquidity and cash flow. • Grade 5 – Includes loans to borrowers that may display fluctuating trends in sales, profitability, capitalization, liquidity, and cash flow. • Grade 6 – Includes loans to borrowers where an adverse change or perceived weakness has occurred, but may be correctable in the near future. Alternatively, this rating category may also include circumstances where the borrower is starting to reverse a negative trend or condition, or has recently been upgraded from a 7, 8, or 9 rating. • Grade 7 – Special Mention credits are borrowers that have experienced financial setback of a nature that is not determined to be severe or influence ‘ongoing concern’ expectations. Although possible, no loss is anticipated, due to strong collateral and/or guarantor support. • Grade 8 – Substandard credits include those borrowers characterized by significant losses and sustained downward trends in balance sheet condition, liquidity, and cash flow. Repayment reliance may have shifted to secondary sources. Collateral exposure may exist and additional reserves may be warranted. • Grade 9 – Doubtful credits include borrowers that may show deteriorating trends that are unlikely to be corrected. Collateral values may appear insufficient for full recovery, therefore requiring a partial charge-off, or debt renegotiation with the borrower. The borrower may have declared bankruptcy or bankruptcy is likely in the near term. All doubtful rated credits will be on non-accrual. The recorded investment by risk category of the loans by class and year of origination is presented in the following tables as of the dates indicated: December 31, 2023 Term Loans by Origination Year ($ in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Converted to Term Loans Revolving Loans Total Commercial and industrial Pass (1-6) $ 1,567,738 $ 1,052,462 $ 345,292 $ 194,972 $ 123,425 $ 71,205 $ 12,163 $ 1,108,233 $ 4,475,490 Special Mention (7) 52,523 6,845 8,597 544 453 242 272 19,590 89,066 Classified (8-9) 12,824 19,306 1,833 812 339 363 508 45,830 81,815 Total Commercial and industrial $ 1,633,085 $ 1,078,613 $ 355,722 $ 196,328 $ 124,217 $ 71,810 $ 12,943 $ 1,173,653 $ 4,646,371 Commercial real estate-investor owned Pass (1-6) $ 495,131 $ 544,223 $ 492,974 $ 323,175 $ 165,343 $ 236,914 $ 5,222 $ 51,413 $ 2,314,395 Special Mention (7) 3,626 22,725 51,851 1,657 164 5,526 — — 85,549 Classified (8-9) 9,411 1,034 43 15,838 2,831 4,919 48 — 34,124 Total Commercial real estate-investor owned $ 508,168 $ 567,982 $ 544,868 $ 340,670 $ 168,338 $ 247,359 $ 5,270 $ 51,413 $ 2,434,068 Commercial real estate-owner occupied Pass (1-6) $ 407,901 $ 486,701 $ 489,589 $ 301,399 $ 183,872 $ 313,474 $ 5,083 $ 30,036 $ 2,218,055 Special Mention (7) 13,739 2,521 4,652 10,492 5,439 15,833 — 1,493 54,169 Classified (8-9) 3,389 3,413 2,247 3,181 8,878 24,857 5,056 — 51,021 Total Commercial real estate-owner occupied $ 425,029 $ 492,635 $ 496,488 $ 315,072 $ 198,189 $ 354,164 $ 10,139 $ 31,529 $ 2,323,245 Construction real estate Pass (1-6) $ 292,689 $ 325,010 $ 96,426 $ 30,956 $ 1,413 $ 3,408 $ 10 $ 3,700 $ 753,612 Special Mention (7) 42 2,958 1,046 210 123 114 — — 4,493 Classified (8-9) 1,137 704 — — 13 466 — — 2,320 Total Construction real estate $ 293,868 $ 328,672 $ 97,472 $ 31,166 $ 1,549 $ 3,988 $ 10 $ 3,700 $ 760,425 Residential real estate Pass (1-6) $ 59,259 $ 41,956 $ 51,436 $ 30,713 $ 17,793 $ 77,327 $ 1,464 $ 78,351 $ 358,299 Special Mention (7) 322 — — — 75 1,801 — 614 2,812 Classified (8-9) 127 1,073 69 — 30 1,492 74 7,500 10,365 Total residential real estate $ 59,708 $ 43,029 $ 51,505 $ 30,713 $ 17,898 $ 80,620 $ 1,538 $ 86,465 $ 371,476 Other Pass (1-6) $ 10,071 $ 55,923 $ 67,766 $ 53,569 $ 9,382 $ 19,657 $ 7 $ 28,464 $ 244,839 Special Mention (7) — — 14,472 — — — — 11,645 26,117 Classified (8-9) — — — — — 8 — — 8 Total Other $ 10,071 $ 55,923 $ 82,238 $ 53,569 $ 9,382 $ 19,665 $ 7 $ 40,109 $ 270,964 Total loans classified by risk category $ 2,929,929 $ 2,566,854 $ 1,628,293 $ 967,518 $ 519,573 $ 777,606 $ 29,907 $ 1,386,869 $ 10,806,549 Total loans classified by performing status 77,569 Total loans $ 10,884,118 December 31, 2022 Term Loans by Origination Year ($ in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Converted to Term Loans Revolving Loans Total Commercial and industrial Pass (1-6) $ 1,403,381 $ 635,275 $ 332,740 $ 172,127 $ 62,729 $ 66,152 $ 8,388 $ 964,592 $ 3,645,384 Special Mention (7) 37,048 10,836 13,858 423 7,995 4,102 — 72,944 147,206 Classified (8-9) 16,176 4,457 1,627 24 166 183 — 21,349 43,982 Total Commercial and industrial $ 1,456,605 $ 650,568 $ 348,225 $ 172,574 $ 70,890 $ 70,437 $ 8,388 $ 1,058,885 $ 3,836,572 Commercial real estate-investor owned Pass (1-6) $ 667,107 $ 584,644 $ 392,402 $ 240,033 $ 115,530 $ 202,661 $ 1,457 $ 53,051 $ 2,256,885 Special Mention (7) 18,844 5,751 23,502 11,605 — 13,063 — — 72,765 Classified (8-9) 1,823 — 465 953 193 6,092 49 — 9,575 Total Commercial real estate-investor owned $ 687,774 $ 590,395 $ 416,369 $ 252,591 $ 115,723 $ 221,816 $ 1,506 $ 53,051 $ 2,339,225 Commercial real estate-owner occupied Pass (1-6) $ 539,610 $ 555,690 $ 362,150 $ 232,335 $ 123,095 $ 270,613 $ — $ 57,308 $ 2,140,801 Special Mention (7) 11,164 3,801 16,856 4,455 13,043 9,009 — 800 59,128 Classified (8-9) — 1,572 3,483 8,910 15,873 11,387 — — 41,225 Total Commercial real estate-owner occupied $ 550,774 $ 561,063 $ 382,489 $ 245,700 $ 152,011 $ 291,009 $ — $ 58,108 $ 2,241,154 Construction real estate Pass (1-6) $ 290,146 $ 232,998 $ 53,129 $ 2,909 $ 2,061 $ 8,480 $ — $ 1,769 $ 591,492 Special Mention (7) 17,331 — 681 146 111 106 — — 18,375 Classified (8-9) 1,192 — — 14 471 21 — — 1,698 Total Construction real estate $ 308,669 $ 232,998 $ 53,810 $ 3,069 $ 2,643 $ 8,607 $ — $ 1,769 $ 611,565 Residential real estate Pass (1-6) $ 63,317 $ 60,910 $ 48,796 $ 20,943 $ 11,259 $ 88,795 $ 579 $ 96,304 $ 390,903 Special Mention (7) 331 — — 79 352 781 — — 1,543 Classified (8-9) 121 73 — 53 1,102 994 — 5 2,348 Total residential real estate $ 63,769 $ 60,983 $ 48,796 $ 21,075 $ 12,713 $ 90,570 $ 579 $ 96,309 $ 394,794 Other Pass (1-6) $ 38,753 $ 88,613 $ 56,252 $ 10,556 $ 20,508 $ 10,796 $ — $ 9,536 $ 235,014 Special Mention (7) — — — — — — — — — Classified (8-9) — — — 4 3 11 3 4 25 Total Other $ 38,753 $ 88,613 $ 56,252 $ 10,560 $ 20,511 $ 10,807 $ 3 $ 9,540 $ 235,039 Total loans classified by risk category $ 3,106,344 $ 2,184,620 $ 1,305,941 $ 705,569 $ 374,491 $ 693,246 $ 10,476 $ 1,277,662 $ 9,658,349 Total loans classified by performing status 78,789 Total loans $ 9,737,138 In the tables above, loan originations in 2023 and 2022 with a classification of “special mention” or “classified” primarily represent renewals or modifications initially underwritten and originated in prior years. For certain loans the Company evaluates credit quality based on the aging status. The following tables present the recorded investment in loans based on payment activity as of the dates indicated: December 31, 2023 ($ in thousands) Performing Non Performing Total Commercial and industrial $ 26,076 $ 112 $ 26,188 Real estate: Commercial - investor owned 17,885 — 17,885 Commercial - owner occupied 28,373 — 28,373 Residential 712 — 712 Other 4,406 5 4,411 Total $ 77,452 $ 117 $ 77,569 December 31, 2022 ($ in thousands) Performing Non Performing Total Commercial and industrial $ 23,240 $ 70 $ 23,310 Real estate: Commercial - investor owned 18,595 — 18,595 Commercial - owner occupied 29,397 — 29,397 Residential 743 — 743 Other 6,672 72 6,744 Total $ 78,647 $ 142 $ 78,789
Related Party
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable from related parties	$ 100	100
Extended Maturity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans experienced subsequent default	0
enterprise value lending portfolio niche segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Credit Losses, Qualitative Adjustment	15,200
Non-Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	134,771	136,932	$ 145,041	$ 136,671
Provision (benefit) for credit losses	35,883	(4,210)	$ 12,993
Non-Covered Loans | Cumulative Effect, Period of Adoption, Adjustment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	12,300
Unadvanced Commitment on Impaired Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Estimated losses attributable to unadvanced commitments on impaired loans	$ 6,600	$ 12,100

Loans - Summary of Allowance fo

Loans - Summary of Allowance for Loan Losses by Portfolio Class and Category (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for Loan Losses [Roll Forward]
Charge-offs	$ (43,215)
Commercial and industrial
Allowance for Loan Losses [Roll Forward]
Charge-offs	(35,789)
Commercial - investor owned
Allowance for Loan Losses [Roll Forward]
Charge-offs	(4,869)
Construction and land development
Allowance for Loan Losses [Roll Forward]
Charge-offs	(9)
Other
Allowance for Loan Losses [Roll Forward]
Charge-offs	(793)
Non-Covered Loans
Allowance for Loan Losses [Roll Forward]
Balance, beginning of year	136,932	$ 145,041	$ 136,671
Provision (benefit) for credit losses	35,883	(4,210)	12,993
Initial Allowance on Acquired PCD Loans			7,006
Charge-offs	(43,215)	(9,393)	(17,185)
Recoveries	5,171	5,494	5,556
Balance, end of year	134,771	136,932	145,041
Non-Covered Loans | Commercial and industrial
Allowance for Loan Losses [Roll Forward]
Balance, beginning of year	53,835	63,825	58,812
Provision (benefit) for credit losses	38,308	(6,121)	14,361
Initial Allowance on Acquired PCD Loans			1,077
Charge-offs	(36,302)	(6,082)	(12,113)
Recoveries	3,045	2,213	1,688
Balance, end of year	58,886	53,835	63,825
Non-Covered Loans | Commercial - investor owned
Allowance for Loan Losses [Roll Forward]
Balance, beginning of year	36,191	35,877	32,062
Provision (benefit) for credit losses	(335)	46	568
Initial Allowance on Acquired PCD Loans			3,651
Charge-offs	(4,869)	(478)	(2,487)
Recoveries	293	746	2,083
Balance, end of year	31,280	36,191	35,877
Non-Covered Loans | CRE - owner occupied
Allowance for Loan Losses [Roll Forward]
Balance, beginning of year	22,752	17,560	17,012
Provision (benefit) for credit losses	523	4,867	(550)
Initial Allowance on Acquired PCD Loans			1,504
Charge-offs	0	(395)	(602)
Recoveries	130	720	196
Balance, end of year	23,405	22,752	17,560
Non-Covered Loans | Construction and land development
Allowance for Loan Losses [Roll Forward]
Balance, beginning of year	11,444	14,536	21,413
Provision (benefit) for credit losses	(1,300)	(3,145)	(7,365)
Initial Allowance on Acquired PCD Loans			37
Charge-offs	(9)	0	(3)
Recoveries	63	53	454
Balance, end of year	10,198	11,444	14,536
Non-Covered Loans | Residential real estate
Allowance for Loan Losses [Roll Forward]
Balance, beginning of year	7,928	7,927	4,585
Provision (benefit) for credit losses	(2,109)	540	3,900
Initial Allowance on Acquired PCD Loans			0
Charge-offs	(656)	(2,068)	(1,521)
Recoveries	979	1,529	963
Balance, end of year	6,142	7,928	7,927
Non-Covered Loans | Other
Allowance for Loan Losses [Roll Forward]
Balance, beginning of year	4,782	5,316	2,787
Provision (benefit) for credit losses	796	(397)	2,079
Initial Allowance on Acquired PCD Loans			737
Charge-offs	(1,379)	(370)	(459)
Recoveries	661	233	172
Balance, end of year	$ 4,860	$ 4,782	$ 5,316

Loans - Gross Chargeoffs (Detai

Loans - Gross Chargeoffs (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 43,215
Risk Rating
Financing Receivable, Credit Quality Indicator [Line Items]
2023	600
2022	3,002
2021	2,569
2020	2,539
2019	4,692
Prior	815
Revolving Loans Converted to Term Loans	12,721
Revolving Loans	15,178
Total	42,116
Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,099
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2023	600
2022	2,999
2021	1,940
2020	2,539
2019	0
Prior	0
Revolving Loans Converted to Term Loans	12,533
Revolving Loans	15,178
Total	35,789
Commercial - investor owned
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	170
2020	0
2019	4,692
Prior	7
Revolving Loans Converted to Term Loans	0
Revolving Loans	0
Total	4,869
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	9
Revolving Loans Converted to Term Loans	0
Revolving Loans	0
Total	9
Residential
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	480
Revolving Loans Converted to Term Loans	176
Revolving Loans	0
Total	656
Other
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	3
2021	459
2020	0
2019	0
Prior	319
Revolving Loans Converted to Term Loans	12
Revolving Loans	0
Total	$ 793

Loans - Summary of Recorded Inv

Loans - Summary of Recorded Investment in Impaired Portfolio Loans by Category (Details) - Non-Covered Loans - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Troubled Debt Restructuring [Line Items]
Non-accrual	$ 43,181	$ 9,766
Restructured, accruing	0	73
Loans over 90 days past due and still accruing interest	547	142
Total nonperforming loans	43,728	9,981
Nonaccrual loans with no allowance	36,078	2,239
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Non-accrual	7,641	4,373
Restructured, accruing	0	0
Loans over 90 days past due and still accruing interest	115	70
Total nonperforming loans	7,756	4,443
Nonaccrual loans with no allowance	6,179	1,047
Commercial - investor owned
Financing Receivable, Troubled Debt Restructuring [Line Items]
Non-accrual	20,404	3,023
Restructured, accruing	0	0
Loans over 90 days past due and still accruing interest	0	0
Total nonperforming loans	20,404	3,023
Nonaccrual loans with no allowance	19,466	0
CRE - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Non-accrual	12,972	1,177
Restructured, accruing	0	0
Loans over 90 days past due and still accruing interest	363	0
Total nonperforming loans	13,335	1,177
Nonaccrual loans with no allowance	9,010	0
Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Non-accrual	1,205	1,192
Restructured, accruing	0	0
Loans over 90 days past due and still accruing interest	64	0
Total nonperforming loans	1,269	1,192
Nonaccrual loans with no allowance	464	1,192
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Non-accrual	959	0
Restructured, accruing	0	73
Loans over 90 days past due and still accruing interest	0	0
Total nonperforming loans	959	73
Nonaccrual loans with no allowance	959	0
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Non-accrual	0	1
Restructured, accruing	0	0
Loans over 90 days past due and still accruing interest	5	72
Total nonperforming loans	5	73
Nonaccrual loans with no allowance	$ 0	$ 0

Loans - Collateral Dependent Lo

Loans - Collateral Dependent Loans (Details) - Non-Covered Loans - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	$ 43,728	$ 9,981
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	7,756	4,443
Commercial - investor owned
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	20,404	3,023
Commercial - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	13,335	1,177
Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	1,269	1,192
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	959	73
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	5	73
Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	26,426	3,415
Commercial Real Estate | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	527	0
Commercial Real Estate | Commercial - investor owned
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	19,467	2,238
Commercial Real Estate | Commercial - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	5,904	1,177
Commercial Real Estate | Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	528	0
Commercial Real Estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	0	0
Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	5,202	2,050
Residential | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	1,864	0
Residential | Commercial - investor owned
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	0	785
Residential | Commercial - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	1,638	0
Residential | Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	741	1,192
Residential | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	959	73
Blanket Lien
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	2,175	1,047
Blanket Lien | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	344	1,047
Blanket Lien | Commercial - investor owned
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	0	0
Blanket Lien | Commercial - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	1,831	0
Blanket Lien | Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	0	0
Blanket Lien | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	0	$ 0
Other Collateral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	3,445
Other Collateral | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	3,445
Other Collateral | Commercial - investor owned
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	0
Other Collateral | Commercial - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	0
Other Collateral | Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	0
Other Collateral | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Impaired Financing Receivable, Recorded Investment	$ 0

Loans - Credit Quality Based on

Loans - Credit Quality Based on Aging Status (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	$ 77,569	$ 78,789
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	10,884,118	9,737,138
Non-Covered Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	10,884,118	9,737,138
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	10,888,345	9,744,427
Non-Covered Loans | Commercial - investor owned
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,452,402	2,357,820
Non-Covered Loans | Commercial - investor owned | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	17,885	18,595
Non-Covered Loans | Commercial - investor owned | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Non-Covered Loans | Commercial - investor owned | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	17,885	18,595
Non-Covered Loans | Commercial - owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,344,117	2,270,551
Non-Covered Loans | Commercial - owner occupied | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	28,373	29,397
Non-Covered Loans | Commercial - owner occupied | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Non-Covered Loans | Commercial - owner occupied | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	28,373	29,397
Non-Covered Loans | Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	760,122	611,565
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	26,188	23,310
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	4,646,371	3,836,572
Commercial and industrial | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	4,475,490	3,645,384
Commercial and industrial | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	89,066	147,206
Commercial and industrial | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	81,815	43,982
Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	712	743
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	371,476	394,794
Residential | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	358,299	390,903
Residential | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,812	1,543
Residential | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	10,365	2,348
Other
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	4,411	6,744
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	270,964	235,039
Other | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	244,839	235,014
Other | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	26,117	0
Other | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	8	25
Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	77,452	78,647
Performing | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	26,076	23,240
Performing | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	712	743
Performing | Other
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	4,406	6,672
Non Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	117	142
Non Performing | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	112	70
Non Performing | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	0	0
Non Performing | Other
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	$ 5	$ 72

Loans - Summary of Term Loans b

Loans - Summary of Term Loans by Origination Year (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 10,884,118	$ 9,737,138
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	1,633,085	1,456,605
Year Two	1,078,613	650,568
Year Three	355,722	348,225
Year Four	196,328	172,574
Year Five	124,217	70,890
Prior	71,810	70,437
Revolving Loans Converted to Term Loans	12,943	8,388
Revolving Loans	1,173,653	1,058,885
Total	4,646,371	3,836,572
Commercial and industrial | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	1,567,738	1,403,381
Year Two	1,052,462	635,275
Year Three	345,292	332,740
Year Four	194,972	172,127
Year Five	123,425	62,729
Prior	71,205	66,152
Revolving Loans Converted to Term Loans	12,163	8,388
Revolving Loans	1,108,233	964,592
Total	4,475,490	3,645,384
Commercial and industrial | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	52,523	37,048
Year Two	6,845	10,836
Year Three	8,597	13,858
Year Four	544	423
Year Five	453	7,995
Prior	242	4,102
Revolving Loans Converted to Term Loans	272	0
Revolving Loans	19,590	72,944
Total	89,066	147,206
Commercial and industrial | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	12,824	16,176
Year Two	19,306	4,457
Year Three	1,833	1,627
Year Four	812	24
Year Five	339	166
Prior	363	183
Revolving Loans Converted to Term Loans	508	0
Revolving Loans	45,830	21,349
Total	81,815	43,982
Commercial Real Estate-Investor Owned Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	508,168	687,774
Year Two	567,982	590,395
Year Three	544,868	416,369
Year Four	340,670	252,591
Year Five	168,338	115,723
Prior	247,359	221,816
Revolving Loans Converted to Term Loans	5,270	1,506
Revolving Loans	51,413	53,051
Total	2,434,068	2,339,225
Commercial Real Estate-Investor Owned Portfolio Segment [Member] | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	495,131	667,107
Year Two	544,223	584,644
Year Three	492,974	392,402
Year Four	323,175	240,033
Year Five	165,343	115,530
Prior	236,914	202,661
Revolving Loans Converted to Term Loans	5,222	1,457
Revolving Loans	51,413	53,051
Total	2,314,395	2,256,885
Commercial Real Estate-Investor Owned Portfolio Segment [Member] | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	3,626	18,844
Year Two	22,725	5,751
Year Three	51,851	23,502
Year Four	1,657	11,605
Year Five	164	0
Prior	5,526	13,063
Revolving Loans Converted to Term Loans	0	0
Revolving Loans	0	0
Total	85,549	72,765
Commercial Real Estate-Investor Owned Portfolio Segment [Member] | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	9,411	1,823
Year Two	1,034	0
Year Three	43	465
Year Four	15,838	953
Year Five	2,831	193
Prior	4,919	6,092
Revolving Loans Converted to Term Loans	48	49
Revolving Loans	0	0
Total	34,124	9,575
Commercial Real Estate-Owner Occupied Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	425,029	550,774
Year Two	492,635	561,063
Year Three	496,488	382,489
Year Four	315,072	245,700
Year Five	198,189	152,011
Prior	354,164	291,009
Revolving Loans Converted to Term Loans	10,139	0
Revolving Loans	31,529	58,108
Total	2,323,245	2,241,154
Commercial Real Estate-Owner Occupied Portfolio Segment [Member] | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	407,901	539,610
Year Two	486,701	555,690
Year Three	489,589	362,150
Year Four	301,399	232,335
Year Five	183,872	123,095
Prior	313,474	270,613
Revolving Loans Converted to Term Loans	5,083	0
Revolving Loans	30,036	57,308
Total	2,218,055	2,140,801
Commercial Real Estate-Owner Occupied Portfolio Segment [Member] | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	13,739	11,164
Year Two	2,521	3,801
Year Three	4,652	16,856
Year Four	10,492	4,455
Year Five	5,439	13,043
Prior	15,833	9,009
Revolving Loans Converted to Term Loans	0	0
Revolving Loans	1,493	800
Total	54,169	59,128
Commercial Real Estate-Owner Occupied Portfolio Segment [Member] | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	3,389	0
Year Two	3,413	1,572
Year Three	2,247	3,483
Year Four	3,181	8,910
Year Five	8,878	15,873
Prior	24,857	11,387
Revolving Loans Converted to Term Loans	5,056	0
Revolving Loans	0	0
Total	51,021	41,225
Construction Real Estate Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	293,868	308,669
Year Two	328,672	232,998
Year Three	97,472	53,810
Year Four	31,166	3,069
Year Five	1,549	2,643
Prior	3,988	8,607
Revolving Loans Converted to Term Loans	10	0
Revolving Loans	3,700	1,769
Total	760,425	611,565
Construction Real Estate Portfolio Segment [Member] | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	292,689	290,146
Year Two	325,010	232,998
Year Three	96,426	53,129
Year Four	30,956	2,909
Year Five	1,413	2,061
Prior	3,408	8,480
Revolving Loans Converted to Term Loans	10	0
Revolving Loans	3,700	1,769
Total	753,612	591,492
Construction Real Estate Portfolio Segment [Member] | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	42	17,331
Year Two	2,958	0
Year Three	1,046	681
Year Four	210	146
Year Five	123	111
Prior	114	106
Revolving Loans Converted to Term Loans	0	0
Revolving Loans	0	0
Total	4,493	18,375
Construction Real Estate Portfolio Segment [Member] | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	1,137	1,192
Year Two	704	0
Year Three	0	0
Year Four	0	14
Year Five	13	471
Prior	466	21
Revolving Loans Converted to Term Loans	0	0
Revolving Loans	0	0
Total	2,320	1,698
Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	59,708	63,769
Year Two	43,029	60,983
Year Three	51,505	48,796
Year Four	30,713	21,075
Year Five	17,898	12,713
Prior	80,620	90,570
Revolving Loans Converted to Term Loans	1,538	579
Revolving Loans	86,465	96,309
Total	371,476	394,794
Residential | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	59,259	63,317
Year Two	41,956	60,910
Year Three	51,436	48,796
Year Four	30,713	20,943
Year Five	17,793	11,259
Prior	77,327	88,795
Revolving Loans Converted to Term Loans	1,464	579
Revolving Loans	78,351	96,304
Total	358,299	390,903
Residential | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	322	331
Year Two	0	0
Year Three	0	0
Year Four	0	79
Year Five	75	352
Prior	1,801	781
Revolving Loans Converted to Term Loans	0	0
Revolving Loans	614	0
Total	2,812	1,543
Residential | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	127	121
Year Two	1,073	73
Year Three	69	0
Year Four	0	53
Year Five	30	1,102
Prior	1,492	994
Revolving Loans Converted to Term Loans	74	0
Revolving Loans	7,500	5
Total	10,365	2,348
Other
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	10,071	38,753
Year Two	55,923	88,613
Year Three	82,238	56,252
Year Four	53,569	10,560
Year Five	9,382	20,511
Prior	19,665	10,807
Revolving Loans Converted to Term Loans	7	3
Revolving Loans	40,109	9,540
Total	270,964	235,039
Other | Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	10,071	38,753
Year Two	55,923	88,613
Year Three	67,766	56,252
Year Four	53,569	10,556
Year Five	9,382	20,508
Prior	19,657	10,796
Revolving Loans Converted to Term Loans	7	0
Revolving Loans	28,464	9,536
Total	244,839	235,014
Other | Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	0	0
Year Two	0	0
Year Three	14,472	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Revolving Loans Converted to Term Loans	0	0
Revolving Loans	11,645	0
Total	26,117	0
Other | Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	4
Year Five	0	3
Prior	8	11
Revolving Loans Converted to Term Loans	0	3
Revolving Loans	0	4
Total	8	25
Loans Classified By Risk Category
Financing Receivable, Credit Quality Indicator [Line Items]
Year One	2,929,929	3,106,344
Year Two	2,566,854	2,184,620
Year Three	1,628,293	1,305,941
Year Four	967,518	705,569
Year Five	519,573	374,491
Prior	777,606	693,246
Revolving Loans Converted to Term Loans	29,907	10,476
Revolving Loans	1,386,869	1,277,662
Total	10,806,549	9,658,349
Loans Classified by Performing Status
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 77,569	$ 78,789

Loans - Summary of Aging of Rec

Loans - Summary of Aging of Recorded Investment in Past Due Portfolio Loans by Portfolio Class and Category (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 10,884,118	$ 9,737,138
Total	77,569	78,789
Non-Covered Loans
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	10,888,345	9,744,427
Loans, before unearned loan fees	10,888,345	9,744,427
Unearned loan fees, net	(4,227)	(7,289)
Total	10,884,118	9,737,138
Non-Covered Loans | Financial Asset, 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, before unearned loan fees	16,231	10,437
Non-Covered Loans | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, before unearned loan fees	44,445	4,936
Non-Covered Loans | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans, before unearned loan fees	60,676	15,373
Non-Covered Loans | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Loans, before unearned loan fees	10,827,669	9,729,054
Non-Covered Loans | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	4,674,056	3,859,964
Non-Covered Loans | Commercial and industrial | Financial Asset, 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	3,445	555
Non-Covered Loans | Commercial and industrial | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	9,037	2,373
Non-Covered Loans | Commercial and industrial | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	12,482	2,928
Non-Covered Loans | Commercial and industrial | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	4,661,574	3,857,036
Non-Covered Loans | Commercial - investor owned
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,452,402	2,357,820
Non-Covered Loans | Commercial - investor owned | Financial Asset, 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,905	0
Non-Covered Loans | Commercial - investor owned | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	18,395	1,135
Non-Covered Loans | Commercial - investor owned | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	20,300	1,135
Non-Covered Loans | Commercial - investor owned | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,432,102	2,356,685
Non-Covered Loans | CRE - owner occupied
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,344,117	2,270,551
Non-Covered Loans | CRE - owner occupied | Financial Asset, 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	8,409	8,628
Non-Covered Loans | CRE - owner occupied | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	14,142	164
Non-Covered Loans | CRE - owner occupied | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	22,551	8,792
Non-Covered Loans | CRE - owner occupied | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,321,566	2,261,759
Non-Covered Loans | Construction and land development
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	760,122	611,565
Non-Covered Loans | Construction and land development | Financial Asset, 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	770	9
Non-Covered Loans | Construction and land development | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,908	1,192
Non-Covered Loans | Construction and land development | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,678	1,201
Non-Covered Loans | Construction and land development | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	757,444	610,364
Non-Covered Loans | Residential real estate
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	371,995	395,537
Non-Covered Loans | Residential real estate | Financial Asset, 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,620	1,227
Non-Covered Loans | Residential real estate | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	959	0
Non-Covered Loans | Residential real estate | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,579	1,227
Non-Covered Loans | Residential real estate | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	369,416	394,310
Non-Covered Loans | Other
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	285,653	248,990
Non-Covered Loans | Other | Financial Asset, 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	82	18
Non-Covered Loans | Other | Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	4	72
Non-Covered Loans | Other | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	86	90
Non-Covered Loans | Other | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 285,567	$ 248,900

Loans - Loan Modifications (Det

Loans - Loan Modifications (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Amortized Cost Basis	$ 57,684
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	57,684
Financial Asset, Not Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	57,262
Financial Asset, 30 to 89 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	422
Financial Asset, Equal to or Greater than 90 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Commercial and industrial
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Amortized Cost Basis	$ 39,437
Percent of Total Loan Class	0.84%
Weighted Average Term Extension (in months)	5 months
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	$ 39,437
Commercial and industrial | Financial Asset, Not Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	39,187
Commercial and industrial | Financial Asset, 30 to 89 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	250
Commercial and industrial | Financial Asset, Equal to or Greater than 90 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Commercial - investor owned
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Amortized Cost Basis	$ 9,411
Percent of Total Loan Class	0.38%
Weighted Average Term Extension (in months)	4 months
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	$ 9,411
Commercial - investor owned | Financial Asset, Not Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	9,411
Commercial - investor owned | Financial Asset, 30 to 89 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Commercial - investor owned | Financial Asset, Equal to or Greater than 90 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Commercial - owner occupied
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Amortized Cost Basis	$ 94
Percent of Total Loan Class	0%
Weighted Average Term Extension (in months)	3 months
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	$ 94
Commercial - owner occupied | Financial Asset, Not Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Commercial - owner occupied | Financial Asset, 30 to 89 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	94
Commercial - owner occupied | Financial Asset, Equal to or Greater than 90 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Construction and land development
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Amortized Cost Basis	$ 1,137
Percent of Total Loan Class	0.15%
Weighted Average Term Extension (in months)	7 months
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	$ 1,137
Construction and land development | Financial Asset, Not Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	1,137
Construction and land development | Financial Asset, 30 to 89 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Construction and land development | Financial Asset, Equal to or Greater than 90 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Residential real estate
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Amortized Cost Basis	$ 7,601
Percent of Total Loan Class	2.04%
Weighted Average Term Extension (in months)	3 months
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	$ 7,601
Residential real estate | Financial Asset, Not Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	7,527
Residential real estate | Financial Asset, 30 to 89 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	74
Residential real estate | Financial Asset, Equal to or Greater than 90 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Other
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Amortized Cost Basis	$ 4
Percent of Total Loan Class	0%
Weighted Average Term Extension (in months)	48 months
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	$ 4
Other | Financial Asset, Not Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Other | Financial Asset, 30 to 89 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	4
Other | Financial Asset, Equal to or Greater than 90 Days Past Due
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	$ 0

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 5,378
Operating Lease, Right-of-Use Asset	25,406	$ 17,355
Operating Lease, Cost	5,628	5,868
Right-of-use assets obtained in exchange for lease obligations	15,640	9,512	$ 5,658
Short-term Lease, Cost	491	814
Lease, Cost	6,119	6,682
Operating Lease, Liability	$ 28,635	$ 18,038
Operating Lease, Weighted Average Remaining Lease Term	7 years	5 years
Operating Lease, Weighted Average Discount Rate, Percent	3.90%	2.50%
Lessee, Operating Lease, Liability, Payments, Due Year Two	$ 5,586
Lessee, Operating Lease, Liability, Payments, Due Year Three	5,682
Lessee, Operating Lease, Liability, Payments, Due Year Four	4,442
Lessee, Operating Lease, Liability, Payments, Due Year Five	2,979
Lessee, Operating Lease, Liability, Payments, Due after Year Five	9,011
Lessee, Operating Lease, Liability, Payments, Due	33,078
Present Value Adjustment	4,443
Operating Lease, Lease Income, Lease Payments	1,800	$ 1,900
Operating Lease, Payments	$ 5,500	$ 5,800
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Lessor, Operating Lease, Term of Contract	2 years
Lessee, Operating Lease, Renewal Term	5 years

Derivative Financial Instrume_3

Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Jan. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative, Net Liability Position, Aggregate Fair Value		$ 15,800
Summary of Derivative Instruments [Abstract]
Securities Sold under Agreements to Repurchase, Gross		250,197		$ 270,773
Securities Sold under Agreements to Repurchase, Asset		0		0
Securities sold under agreement to repurchase		250,197		270,773
Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Securities		0		0
Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Cash		250,197		270,773
Securities Sold under Agreements to Repurchase, Amount Offset Against Collateral		0		0
Interest rate swap contracts
Derivative [Line Items]
Pledged cash as collateral in connection with interest rate swap agreements		0		0
Summary of Derivative Instruments [Abstract]
Derivative Asset, Fair Value, Gross Asset		17,275		22,958
Liability derivatives (other liabilities), fair value		16,184		21,533
Derivative Asset, Fair Value, Gross Liability		0		0
Derivatives		17,275		22,958
Derivative, Collateral, Obligation to Return Securities		1,105		0
Derivative, Collateral, Obligation to Return Cash		16,170		9,010
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		0		13,948
Derivative Liability, Fair Value, Gross Asset		0		0
Derivatives		16,184		21,533
Derivative, Collateral, Right to Reclaim Securities		1,105		0
Derivative Liability, Fair Value, Amount Offset Against Collateral		15,079		21,533
Interest rate collar
Derivative [Line Items]
Pledged cash as collateral in connection with interest rate swap agreements				0
Summary of Derivative Instruments [Abstract]
Derivative Asset, Fair Value, Gross Asset		514
Liability derivatives (other liabilities), fair value				48
Derivative Asset, Fair Value, Gross Liability		0
Derivatives		514
Derivative, Collateral, Obligation to Return Securities		0
Derivative, Collateral, Obligation to Return Cash		0
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		514
Derivative Liability, Fair Value, Gross Asset				0
Derivatives				48
Derivative, Collateral, Right to Reclaim Securities				0
Derivative Liability, Fair Value, Amount Offset Against Collateral				48
Designated as Hedging Instrument [Member]
Summary of Derivative Instruments [Abstract]
Derivative Asset, Fair Value, Gross Asset		1,903		2,348
Liability derivatives (other liabilities), fair value		233		969
Designated as Hedging Instrument [Member] | Other Assets | Interest Rate Contract [Member]
Derivative [Line Items]
Notional		211,962		161,962
Summary of Derivative Instruments [Abstract]
Derivative Asset, Fair Value, Gross Asset		1,389		2,348
Designated as Hedging Instrument [Member] | Other Assets | Interest rate collar
Derivative [Line Items]
Notional		100,000		100,000
Summary of Derivative Instruments [Abstract]
Derivative Asset, Fair Value, Gross Asset		514		0
Designated as Hedging Instrument [Member] | Other Liabilities | Interest Rate Contract [Member]
Summary of Derivative Instruments [Abstract]
Liability derivatives (other liabilities), fair value		233		921
Designated as Hedging Instrument [Member] | Other Liabilities | Interest rate collar
Summary of Derivative Instruments [Abstract]
Liability derivatives (other liabilities), fair value		0		48
Non-designated hedging instruments | Other Assets | Interest Rate Contract [Member]
Derivative [Line Items]
Notional		779,152		687,902
Summary of Derivative Instruments [Abstract]
Derivative Asset, Fair Value, Gross Asset		15,886		20,610
Non-designated hedging instruments | Other Liabilities | Interest Rate Contract [Member]
Summary of Derivative Instruments [Abstract]
Liability derivatives (other liabilities), fair value		15,951		$ 20,612
Cash Flow Hedging | Subordinated Debt
Derivative [Line Items]
Notional		$ 62,000
Derivative, Variable Interest Rate		2.62%
Cash Flow Hedging | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional		$ 100,000	$ 50,000
Fixed Rate		6.63%	6.56%
Cash Flow Hedging | Forecast [Member] | Interest Expense
Summary of Derivative Instruments [Abstract]
Decrease to interest expense and increase to interest income	$ (900)
Cash Flow Hedging | Forecast [Member] | Interest Income
Summary of Derivative Instruments [Abstract]
Decrease to interest expense and increase to interest income	$ 1,700
Prime Based Interest Rate Collar | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional		$ 100,000
Prime Based Interest Rate Collar | Designated as Hedging Instrument [Member] | Minimum
Derivative [Line Items]
Derivative, Variable Interest Rate		8.14%
Prime Based Interest Rate Collar | Designated as Hedging Instrument [Member] | Maximum
Derivative [Line Items]
Derivative, Variable Interest Rate		5.25%

Derivative Financial Instrume_4

Derivative Financial Instruments - Cash Flow Hedges (Details) - Cash Flow Hedging $ in Thousands	Dec. 31, 2023 USD ($)
Cash Flow Hedge Due March 15, 2024
Derivative [Line Items]
Notional	$ 15,465
Fixed Rate	2.60%
Cash Flow Hedge Due March 30, 2024
Derivative [Line Items]
Notional	$ 14,433
Fixed Rate	2.60%
Cash Flow Hedge Due March 15, 2026
Derivative [Line Items]
Notional	$ 18,558
Fixed Rate	2.64%
Cash Flow Hedge Due March 17, 2026
Derivative [Line Items]
Notional	$ 13,506
Fixed Rate	2.64%

Fixed Assets - Summary of Fixed

Fixed Assets - Summary of Fixed Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Land	$ 11,716	$ 12,362
Buildings and leasehold improvements	50,720	50,243
Furniture, fixtures and equipment	21,526	19,569
Fixed assets, gross	83,962	82,174
Less accumulated depreciation and amortization	41,281	39,189
Fixed assets, net	$ 42,681	$ 42,985

Fixed Assets - Narrative (Detai

Fixed Assets - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) branch
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 5,100	$ 5,600	$ 6,100
Gain on asset sale-leaseback	100
Asset impairment	$ 0	$ 0	$ 3,441
CALIFORNIA
Property, Plant and Equipment [Line Items]
Number Of Branches Closed | branch			3
Asset impairment			$ 400
St. Louis
Property, Plant and Equipment [Line Items]
Number Of Branches Closed | branch			2
Asset impairment			$ 3,400

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 365,164
Amortization of intangible assets	4,601	$ 5,367	$ 5,690
Finite-Lived Intangible Assets [Line Items]
Core deposit intangible, net, end of year	12,318
Goodwill	$ 365,164	365,164
Core Deposits [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets useful life	10 years
Finite-Lived Intangible Assets [Line Items]
Amortization	$ (4,601)	(5,367)
Core deposit intangible, net, end of year	$ 12,318	$ 16,919	$ 22,286

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Expected Amortization Schedule for the Core Deposit Intangible (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2021	$ 3,834
2022	3,068
2023	2,301
2024	1,535
2025	953
After 2028	627
Core deposit intangible, net, end of year	$ 12,318

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Brokered
Less than 1 year	$ 387,609
Greater than 1 year and less than 2 years	95,150
Greater than 2 years and less than 3 years	0
Greater than 3 years and less than 4 years	0
Greater than 4 years and less than 5 years	0
Greater than 5 years	0
Brokered	482,759	$ 118,968
Customer
Less than 1 year	714,213
Greater than 1 year and less than 2 years	61,365
Greater than 2 years and less than 3 years	6,073
Greater than 3 years and less than 4 years	2,946
Greater than 4 years and less than 5 years	1,291
Greater than 5 years	4,267
Other	790,155	411,740
Total
Less than 1 year	1,101,822
Greater than 1 year and less than 2 years	156,515
Greater than 2 years and less than 3 years	6,073
Greater than 3 years and less than 4 years	2,946
Greater than 4 years and less than 5 years	1,291
Greater than 5 years	4,267
Total Time Deposits	1,272,914
Time Deposits, $250,000 or More	234,600
Deposits from related parties	2,600
CDARS Deposits	91,700	10,600
ICS Deposits	1,100,000	195,100
Deposit Liabilities Reclassified as Loans Receivable	$ 1,600	$ 3,200

Subordinated Debentures and N_3

Subordinated Debentures and Notes (Details) $ in Thousands		12 Months Ended
	Nov. 01, 2021 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Nov. 01, 2016 USD ($)
Subordinated Borrowing [Line Items]
Number of Unconsolidated Statutory Business Trusts		13
Investments trust preferred securities		$ 2,900
Subordinated debentures and notes		$ 155,984	$ 155,433
5.75%
Subordinated Borrowing [Line Items]
Fixed interest rate		5.75%
Senior Subordinated Notes [Member]
Subordinated Borrowing [Line Items]
Senior Subordinated Notes				$ 50,000
Redeemed value	$ 50,000
Loss on redemption	$ 700
Trust preferred securities [Member]
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 93,121	92,837
Trust preferred securities [Member] | EFSC Clayco Statutory Trust I
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 3,196	3,196
Maturity Date		Dec. 17, 2033
Initial Call Date (1)		Dec. 17, 2008
Floating interest rate		0.0285
Trust preferred securities [Member] | EFSC Capital Trust II
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 5,155	5,155
Maturity Date		Jun. 17, 2034
Initial Call Date (1)		Jun. 17, 2009
Floating interest rate		0.0265
Trust preferred securities [Member] | EFSC Statutory Trust III
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 11,341	11,341
Maturity Date		Dec. 15, 2034
Initial Call Date (1)		Dec. 15, 2009
Floating interest rate		0.0197
Trust preferred securities [Member] | EFSC Clayco Statutory Trust II
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 4,124	4,124
Maturity Date		Sep. 15, 2035
Initial Call Date (1)		Sep. 15, 2010
Floating interest rate		0.0183
Trust preferred securities [Member] | EFSC Statutory Trust IV
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 10,310	10,310
Maturity Date		Dec. 15, 2035
Initial Call Date (1)		Dec. 15, 2010
Floating interest rate		0.0144
Trust preferred securities [Member] | EFSC Statutory Trust V
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 4,124	4,124
Maturity Date		Sep. 15, 2036
Initial Call Date (1)		Sep. 15, 2011
Floating interest rate		0.0160
Trust preferred securities [Member] | EFSC Capital Trust VI
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 14,433	14,433
Maturity Date		Mar. 30, 2037
Initial Call Date (1)		Mar. 30, 2012
Floating interest rate		0.0160
Trust preferred securities [Member] | EFSC Capital Trust VII
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 4,124	4,124
Maturity Date		Dec. 15, 2037
Initial Call Date (1)		Dec. 15, 2012
Floating interest rate		0.0225
Trust preferred securities [Member] | JEFFCO Stat Trust I [Member]
Subordinated Borrowing [Line Items]
Fixed interest rate		10.20%
Subordinated debentures and notes		$ 7,732	7,732
Maturity Date		Feb. 22, 2031
Initial Call Date (1)		Feb. 22, 2011
Trust preferred securities [Member] | JEFFCO Stat Trust II [Member]
Subordinated Borrowing [Line Items]
Fixed interest rate		2.75%
Subordinated debentures and notes		$ 4,604	4,550
Maturity Date		Mar. 17, 2034
Initial Call Date (1)		Mar. 17, 2009
Trust preferred securities [Member] | Trinity Capital Trust III [Member]
Subordinated Borrowing [Line Items]
Fixed interest rate		2.70%
Subordinated debentures and notes		$ 5,473	5,406
Maturity Date		Sep. 08, 2034
Initial Call Date (1)		Sep. 08, 2009
Trust preferred securities [Member] | Trinity Capital Trust IV [Member]
Subordinated Borrowing [Line Items]
Fixed interest rate		6.88%
Subordinated debentures and notes		$ 10,310	10,310
Maturity Date		Nov. 23, 2035
Initial Call Date (1)		Aug. 23, 2010
Trust preferred securities [Member] | Trinity Capital Trust V [Member]
Subordinated Borrowing [Line Items]
Fixed interest rate		1.65%
Subordinated debentures and notes		$ 8,195	8,032
Maturity Date		Dec. 15, 2036
Initial Call Date (1)		Sep. 15, 2011
Senior Subordinated Notes [Member]
Subordinated Borrowing [Line Items]
Fixed interest rate		4.75%
Debt issuance costs		$ (387)	(654)
Subordinated notes, net of issuance costs		$ 62,863	62,596
Senior Subordinated Notes [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Subordinated Borrowing [Line Items]
Floating interest rate		0.05660
Senior Subordinated Notes [Member] | 5.75%
Subordinated Borrowing [Line Items]
Subordinated debentures and notes		$ 63,250	$ 63,250
Maturity Date		Jun. 01, 2030
Initial Call Date (1)		Jun. 01, 2025

Federal Home Loan Bank Advanc_3

Federal Home Loan Bank Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Weighted Rate
Federal Home Loan Bank, Advances, Maturities Summary, One to Five Years	$ 0	$ 100,000
Federal Home Loan Bank Advances, Maturities Summary, Average Interest Rate of Amounts Due in One to Five Years of Balance Sheet Date	0%	4.57%
Des Moines
Federal Home Loan Bank, Advances, Branch of FHLB [Line Items]
Carrying value of the loans pledged	$ 1,900,000	$ 1,400,000
Availability under the secured line of credit	$ 1,000,000

Other Borrowings (Details)

Other Borrowings (Details) - USD ($)	1 Months Ended	2 Months Ended		12 Months Ended
	Feb. 29, 2016	Feb. 28, 2022	Feb. 28, 2019	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Securities sold under agreement to repurchase				$ 250,197,000	$ 270,773,000
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss				10,884,118,000	9,737,138,000
Other borrowings				297,829,000	324,119,000
Loans Payable				11,429,000	17,143,000
Unsecured Term Loan Agreement ("Term Loan")
Debt Instrument [Line Items]
Term (in years)			5 years
Unsecured term loan, face amount			$ 40,000,000
Unsecured Term Loan Agreement ("Term Loan") | LIBOR
Debt Instrument [Line Items]
Basis spread			1.25%
Unsecured Term Loan Agreement ("Term Loan") | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread		1.36%
Other Borrowings
Debt Instrument [Line Items]
Average balance during the year				168,745,000	211,039,000
Maximum balance outstanding at any month-end				$ 250,197,000	$ 284,269,000
Average interest rate during the year				2.16%	0.24%
Average interest rate at December 31				3.56%	1.44%
Other Borrowings | New Market Tax Credit Investments
Debt Instrument [Line Items]
Other borrowings				$ 36,200,000
Interest rate				1%
Term of interest (in years)				7 years
Other Borrowings | New Market Tax Credit Investments | Minimum
Debt Instrument [Line Items]
Term (in years)				25 years
Other Borrowings | New Market Tax Credit Investments | Maximum
Debt Instrument [Line Items]
Term (in years)				30 years
Line of Credit
Debt Instrument [Line Items]
Remaining borrowing capacity				$ 2,500,000,000
Amount withdrawn				0
Line Of Credit Facility, Bank Term Funding Program				215,000,000
Line of Credit | Asset Pledged as Collateral without Right | Federal Home Loan Bank Advances
Debt Instrument [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss				2,900,000,000
Line of Credit | Senior Unsecured Revolving Credit Agreement ("Revolving Agreement") | Revolving Credit Facility
Debt Instrument [Line Items]
Term (in years)	1 year
Line of Credit, Current	$ 25,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.30%
Line of Credit | Senior Unsecured Revolving Credit Agreement ("Revolving Agreement") | Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Basis spread	1.36%
Unsecured Term Loan
Debt Instrument [Line Items]
Average balance during the year				14,959,000	$ 20,681,000
Maximum balance outstanding at any month-end				$ 17,143,000	$ 22,857,000
Average interest rate during the year				6.44%	2.94%
Average interest rate at December 31				6.70%	5.48%

Regulatory Capital (Details)

Regulatory Capital (Details)	Dec. 31, 2023	Dec. 31, 2022
Enterprise Financial Services Corp [Member]
Regulatory Assets [Line Items]
Tier One Common Equity Capital to Risk Weighted Assets	11.30%	11.10%
Actual, Ratio	0.127	0.126
Actual, Ratio	0.142	0.142
Actual, Ratio	0.110	0.109
Enterprise Bank and Trust [Member]
Regulatory Assets [Line Items]
Tier One Common Equity Capital to Risk Weighted Assets	12.20%	12.10%
Tier One Common Equity Capital Required to be Well Capitalized to Risk Weighted Assets	6.50%
Tier One Common Equity Capital CCB Minimum	7%
Actual, Ratio	0.122	0.121
To Be Well Capitalized Under Applicable Action Provisions, Ratio	0.080
Tier One Risk Based Capital CCB Minimum	8.50%
Actual, Ratio	0.132	0.131
To Be Well Capitalized Under Applicable Action Provisions, Ratio	0.100
Capital to Risk Weighted Assets CCB Minimum	10.50%
Actual, Ratio	0.106	0.105
To Be Well Capitalized Under Applicable Action Provisions, Ratio	0.050

Shareholders' Equity and Comp_3

Shareholders' Equity and Compensation Plans - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 31, 2022	Apr. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased		2,000,000			2,000,000	2,000,000
Share-based compensation expense		$ 10,146,000	$ 8,006,000	$ 6,017,000
Tax benefit from compensation expense		$ 300,000	100,000	(100,000)
Award vesting period		3 years
Total unrecognized compensation cost for nonvested stock units		$ 14,500,000
Employee minimum age to participate in plan		21 years
Company contributions, amount charged to expense		$ 6,500,000	$ 5,800,000	4,900,000
Preferred stock, shares authorized		5,000,000	5,000,000
Preferred stock, par value		$ 0.01	$ 0.01
Preferred stock, shares outstanding		75,000	75,000
Expected years to recognize unearned compensation		2 years
Proceeds from issuance of preferred stock, net	$ 72,000,000	$ 0	$ 0	71,988,000
Depositary Shares, Issued And Sold	3,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value		1,600,000	500,000	900,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value		100,000	100,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 1,609,000	916,000	396,000
Contractual term		10 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 5,014,000	4,156,000	3,109,000
Total unrecognized compensation cost for nonvested stock units	$ 4,622,000	$ 8,438,000	$ 8,507,000	$ 4,622,000
Number of shares issued		107,353
Expected years to recognize unearned compensation		1 year 8 months 12 days	2 years	1 year 10 months 24 days
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 2,879,000	$ 2,391,000	$ 1,777,000
Number of shares issued		112,848
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent		85%
Share-based compensation expense		$ 644,000	$ 543,000	$ 735,000
Number of shares authorized		750,000
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period		68,286	55,123	64,826
Share-Based Compensation Arrangement By Share-Based Payment Award, Shares Available Under Employee Stock Purchase Plan		447,655
Stock Options and SSARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement By Share-based Payment Award, Exercises in Period		909
Minimum | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Minimum | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Maximum | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		5 years
Maximum | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		5 years
Stock Plan for Non-Management Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant		130,162	55,878
Number of shares authorized		400,000
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant, Excluding Deferred Shares		108,893
Share Based Compensation Arrangement by Shar Based Payment Award Number of Shares Available for Grant, Deferred Shares		21,269
Deferred Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate		25%
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate, Bonus		100%
Deferred Compensation Liability, Current and Noncurrent		$ 3,700,000

Shareholders' Equity and Comp_4

Shareholders' Equity and Compensation Plans - Common Stock (Details) - shares	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	2,207,195	1,615,578
2018 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	732,427	342,157
Stock Plan for Non-Management Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant	130,162	55,878
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	447,655	515,941
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	273,202	209,702
Common Stock, Capital Shares Reserved for Future Issuance	273,202	209,702
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	290,141	269,868
Stock Options and SSARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement By Share-based Payment Award, Outstanding, Number	333,608	222,032

Shareholders' Equity and Comp_5

Shareholders' Equity and Compensation Plans - Changes in OCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Shareholders' Equity, Beginning Balance	$ 1,522,263	$ 1,529,116	$ 1,078,975
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	29,317	(149,109)	(18,343)
Debt Securities, Held-to-maturity, Transfer, Derivative Hedge, Gain (Loss)		0
Shareholders' Equity, Ending Balance	1,716,068	1,522,263	1,529,116
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Shareholders' Equity, Beginning Balance	(130,332)	18,777	37,120
Shareholders' Equity, Ending Balance	(101,015)	(130,332)	18,777
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Shareholders' Equity, Beginning Balance	(144,549)	5,271	22,320
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	31,705	(149,623)	(17,049)
Debt Securities, Held-to-maturity, Transfer, Derivative Hedge, Gain (Loss)		(197)
Shareholders' Equity, Ending Balance	(112,844)	(144,549)	5,271
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Shareholders' Equity, Beginning Balance	1,032	(2,178)	(4,508)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	217	3,210	2,330
Debt Securities, Held-to-maturity, Transfer, Derivative Hedge, Gain (Loss)		0
Shareholders' Equity, Ending Balance	1,249	1,032	(2,178)
AOCI, Accumulated Gain (Loss), Held To Maturity Securities, Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Shareholders' Equity, Beginning Balance	13,185	15,684	19,308
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(2,605)	(2,696)	(3,624)
Debt Securities, Held-to-maturity, Transfer, Derivative Hedge, Gain (Loss)		197
Shareholders' Equity, Ending Balance	$ 10,580	$ 13,185	$ 15,684

Shareholders' Equity and Comp_6

Shareholders' Equity and Compensation Plans - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]
Other comprehensive income (loss), securities, available-for-sale, unrealized holding gain (loss) arising during period, before tax	$ 42,988	$ (200,030)	$ (22,701)
Unrealized (loss)/gain on investment securities available for sale arising during the period, tax	10,833	(50,407)	(5,652)
Other comprehensive income (loss), securities, available-for-sale, unrealized holding gain (loss) arising during period, net of tax	32,155	(149,623)	(17,049)
Reclassification adjustment for realized gains on sale of securities available for sale included in net income, before tax	(601)	0	0
Reclassification adjustment for realized gains on sale of securities available for sale included in net income, tax	(151)	0	0
Reclassification adjustment for realized gains on sale of securities available for sale included in net income, net of tax	(450)	0	0
Other Comprehensive Income (Loss), Reclassification of (gain) loss on held to maturity securities, before of tax	(3,483)	(3,605)	(4,672)
Other Comprehensive Income (Loss), Reclassification of (gain) loss on held to maturity securities, tax	(878)	(909)	(1,048)
Other Comprehensive Income (Loss), Reclassification of (gain) loss on held to maturity securities, net of tax	(2,605)	(2,696)	(3,624)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(656)	3,741	1,533
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	(165)	943	372
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(491)	2,798	1,161
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Cash Flow Hedges, before Tax	945	551	1,543
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Cash Flow Hedges, Tax	237	139	374
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Cash Flow Hedges, after Tax	708	412	1,169
Other comprehensive income (loss) before tax	39,193	(199,343)	(24,297)
Other comprehensive income (loss) tax	9,876	(50,234)	(5,954)
Other comprehensive income (loss)	$ 29,317	$ (149,109)	$ (18,343)

Shareholders' Equity and Comp_7

Shareholders' Equity and Compensation Plans - Reclassifications Out of AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Noninterest income	$ 68,725	$ 59,162	$ 67,743
Net interest income	562,592	473,903	360,194
Income before income tax expense	246,526	259,460	168,633
Income tax expense	52,467	56,417	35,578
Net income	$ 194,059	$ 203,043	$ 133,055

Shareholders' Equity and Comp_8

Shareholders' Equity and Compensation Plans - Schedule of Various Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 10,146	$ 8,006	$ 6,017
Total unrecognized compensation cost for nonvested stock units	$ 14,500
Expected years to recognize unearned compensation	2 years
Weighted average fair value (usd per share)	$ 62,190	$ 51,910	$ 47,160
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 644	$ 543	$ 735
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	5,014	4,156	3,109
Total fair value at vesting date	3,894	3,888	2,855
Total unrecognized compensation cost for nonvested stock units	$ 8,438	$ 8,507	$ 4,622
Expected years to recognize unearned compensation	1 year 8 months 12 days	2 years	1 year 10 months 24 days
Stock Plan for Non-Management Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued	27,016,000	23,343,000	12,998,000
Weighted average fair value (usd per share)	$ 41.31	$ 42.17	$ 46.05

Shareholders' Equity and Comp_9

Shareholders' Equity and Compensation Plans - Weighted-Average Assumptions (Details) - Stock Options	12 Months Ended
	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk Free Interest Rate	4.09%
Expected Dividend Yield	1.84%
Expected Volatility	34.74%
Expected Term (years)	6 years 3 months 18 days

Shareholders' Equity and Com_10

Shareholders' Equity and Compensation Plans - Schedule of Employee Stock Options and SSARs Activity (Details) - Stock Options and SSARs	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Shares
Outstanding at beginning of period (in shares) | shares	222,032
Granted (in shares) | shares	122,161
Exercised (in shares) | shares	(909)
Forfeited (in shares) | shares	(9,676)
Outstanding at end of period (in shares) | shares	333,608
Exercisable (in shares) | shares	53,208
Weighted Average Exercise Price
Outstanding at beginning of period (usd per share) | $ / shares	$ 46.12
Granted (usd per share) | $ / shares	54.46
Exercised (usd per share) | $ / shares	45.28
Forfeited (usd per share) | $ / shares	48.30
Outstanding at end of period (usd per share) | $ / shares	49.11
Exercisable (usd per share) | $ / shares	$ 45.30
Additional Disclosures
Outstanding, weighted average remaining contractual term	8 years 2 months 12 days
Exercisable, weighted average remaining contractual term	7 years 6 months

Shareholders' Equity and Com_11

Shareholders' Equity and Compensation Plans - Summary of Restricted Stock Units Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Weighted Average Grant Date Fair Value
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 14,500
Expected years to recognize unearned compensation	2 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$ 3,894	$ 3,888	$ 2,855
Shares
Outstanding, beginning of period (in shares)	269,868
Granted (in shares)	107,353
Vested (in shares)	77,195
Forfeited (in shares)	9,885
Outstanding, end of period (in shares)	290,141	269,868
Weighted Average Grant Date Fair Value
Outstanding, beginning of period (usd per share)	$ 46.49
Granted (usd per share)	50.46
Vested (usd per share)	43.60
Forfeited (usd per share)	47.65
Outstanding, end of period (usd per share)	$ 48.69	$ 46.49
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 8,438	$ 8,507	$ 4,622
Expected years to recognize unearned compensation	1 year 8 months 12 days	2 years	1 year 10 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 50.46	$ 47.96	$ 44.01
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)	31,142
Shares
Outstanding, beginning of period (in shares)	209,702
Granted (in shares)	112,848
Vested (in shares)	49,348
Outstanding, end of period (in shares)	273,202	209,702

Shareholders' Equity and Com_12

Shareholders' Equity and Compensation Plans - Outstanding Longer Term Incentive Awards (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Retirement Benefits [Abstract]
Target Shares Issuable as Long Term Incentive Awards	$ 56,424	$ 41,765	$ 38,412
Maximum Shares Issuable as Long Term Incentive Awards	112,848	83,530	76,824
Unrecognized Compensation Cost - Long Term Incentives	$ 2,340,000,000	$ 1,001,000,000	$ 77,000,000
Share-based Compensation Arrangement By Share-based Payment Award, Grants In Period, Weighted Average Grant Date Fair Value	$ 62,190	$ 51,910	$ 47,160

Income Taxes - Schedule of Comp

Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Federal	$ 40,471	$ 42,718	$ 29,835
State and local	9,616	11,505	5,198
Current Federal, State and Local, Tax Expense (Benefit)	50,087	54,223	35,033
Deferred:	2,380	2,194	545
Deferred Federal Income Tax Expense (Benefit)	283	1,853	870
Deferred State and Local Income Tax Expense (Benefit)	2,097	341	(325)
Deferred Federal, State and Local, Tax Expense (Benefit)	2,380	2,194	545
Total income tax expense	$ 52,467	$ 56,417	$ 35,578

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) state	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Tax Credit Carryforward [Line Items]
Amount recognized as a component of income tax expense related low-income housing tax credit		$ 200,000	$ 100,000
Investments related to low-income housing tax credits	$ 17,200,000	7,300,000
Impairment losses recognized from forfeiture or ineligibility	0
Deferred Tax Assets, Net	76,708,000	88,961,000
Deferred Tax Assets, Valuation Allowance	$ 2,812,000	2,830,000
Number of states the company files income tax returns in | state	32
Unrecognized tax benefits	$ 3,077,000	2,724,000	2,697,000	$ 3,157,000
Unrecognized tax benefits that would impact effective tax rate	2,400,000	2,200,000	2,500,000
Reduction in unrecognized tax benefit that is reasonably possible due to a lapse of statute of limitations	$ 400,000
Duration of unrecognized tax benefits	12 months
Income Tax Examination, Penalties and Interest Accrued	$ 1,000,000	600,000	$ 500,000
Other Assets
Tax Credit Carryforward [Line Items]
Deferred Tax Assets, Net	$ 76,700,000	$ 89,000,000

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Increase (reduction) in income tax resulting from:
Income tax expense at statutory rate	$ 51,770	$ 54,487	$ 35,413
Tax-exempt interest income, net	(4,942)	(4,351)	(3,198)
State and local income taxes, net	9,445	9,767	4,936
Bank-owned life insurance	(888)	(545)	(713)
Non-deductible expenses	2,059	926	1,090
Tax benefit of low-income housing tax credit ("LIHTC") investments, net	(56)	(195)	(132)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	(251)	(68)	146
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount	(4,364)	(3,661)	(1,136)
Non-taxable donation to charitable foundation	0	0	(263)
Other, net	(306)	57	(565)
Total income tax expense	$ 52,467	$ 56,417	$ 35,578

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Allowance for loan losses	$ 33,423	$ 34,507
Loans held-for-sale	4,463	5,917
Other real estate	0	179
Deferred compensation	4,746	3,527
Accrued compensation	6,047	6,294
Unrealized losses on securities, net	33,687	44,094
Net operating losses and tax credits	5,544	5,829
Lease liability accrual	7,101	4,545
Other investments	5,341	4,293
Research and experimental expenses	1,944	0
Fixed assets	2,341	2,867
Other deferred tax assets	4,823	3,596
Total deferred tax assets	109,460	115,648
Deferred tax liabilities:
Acquired loans	2,388	2,212
Intangible assets	8,576	8,676
Right of use asset	6,301	4,374
Other investments	11,834	7,530
Other deferred tax liabilities	841	1,065
Total deferred tax liabilities	29,940	23,857
Deferred Tax Assets, Gross	79,520	91,791
Deferred Tax Assets, Valuation Allowance	2,812	2,830
Deferred Tax Assets, Net	$ 76,708	$ 88,961

Income Taxes - Schedule of Unre

Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of year	$ 2,724	$ 2,697	$ 3,157
Additions based on tax positions related to the current year	727	683	563
Additions for tax positions of prior years	24	47	436
Settlements for tax positions of prior years	0	(82)	(1,289)
Settlements or lapse of statute of limitations	(398)	(621)	(170)
Balance at end of year	$ 3,077	$ 2,724	$ 2,697

Commitments and Contingent Li_3

Commitments and Contingent Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Commitments to extend credit
Schedule of Commitments [Line Items]
Off-balance sheet financial instruments, contractual amounts	$ 2,937,760	$ 3,113,966
Letters of credit
Schedule of Commitments [Line Items]
Off-balance sheet financial instruments, contractual amounts	$ 107,082	68,544
Letters of credit | Minimum
Schedule of Commitments [Line Items]
Remaining term	1 month
Letters of credit | Maximum
Schedule of Commitments [Line Items]
Remaining term	9 years
Tax credits
Schedule of Commitments [Line Items]
Off-balance sheet financial instruments, contractual amounts	$ 3,514	4,075
Limited partnership commitments
Schedule of Commitments [Line Items]
Off-balance sheet financial instruments, contractual amounts	32,548	35,090
Unadvanced Commitment on Impaired Loan
Schedule of Commitments [Line Items]
Estimated losses attributable to unadvanced commitments on impaired loans	6,600	12,100
Fixed Rate Loan Commitment | Commitments to extend credit
Schedule of Commitments [Line Items]
Off-balance sheet financial instruments, contractual amounts	$ 191,600	$ 246,500

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets
Securities available-for-sale	$ 1,618,273	$ 1,535,807
Obligations of U.S. Government-sponsored enterprises
Assets
Securities available-for-sale	296,446	237,785
Obligations of states and political subdivisions
Assets
Securities available-for-sale	432,171	417,444
Residential mortgage-backed securities
Assets
Securities available-for-sale	700,381	659,404
Corporate Debt Securities [Member]
Assets
Securities available-for-sale	181,701	208,534
US Treasury Bill Securities [Member]
Assets
Securities available-for-sale	7,574	12,640
Recurring basis | Total Fair Value
Assets
Securities available-for-sale	1,618,273	1,535,807
Obligations of U.S. Government-sponsored enterprises	2,941	2,667
Derivatives	17,789	22,958
Total assets	1,639,003	1,561,432
Liabilities
Derivatives	16,184	21,581
Total liabilities	16,184	21,581
Recurring basis |     Obligations of U.S. Government-sponsored enterprises | Total Fair Value
Assets
Securities available-for-sale	296,446	237,785
Recurring basis | Obligations of states and political subdivisions | Total Fair Value
Assets
Securities available-for-sale	432,171	417,444
Recurring basis | Residential mortgage-backed securities | Total Fair Value
Assets
Securities available-for-sale	700,381	659,404
Recurring basis | Corporate Debt Securities [Member] | Total Fair Value
Assets
Securities available-for-sale	181,701	12,640
Recurring basis | US Treasury Bill Securities [Member] | Total Fair Value
Assets
Securities available-for-sale	7,574	208,534
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Securities available-for-sale	0	0
Obligations of U.S. Government-sponsored enterprises	0	0
Derivatives	0	0
Total assets	0	0
Liabilities
Derivatives	0	0
Total liabilities	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) |     Obligations of U.S. Government-sponsored enterprises
Assets
Securities available-for-sale	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of states and political subdivisions
Assets
Securities available-for-sale	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential mortgage-backed securities
Assets
Securities available-for-sale	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate Debt Securities [Member]
Assets
Securities available-for-sale	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | US Treasury Bill Securities [Member]
Assets
Securities available-for-sale	0	0
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets
Securities available-for-sale	1,618,273	1,535,807
Obligations of U.S. Government-sponsored enterprises	2,941	2,667
Derivatives	17,789	22,958
Total assets	1,639,003	1,561,432
Liabilities
Derivatives	16,184	21,581
Total liabilities	16,184	21,581
Recurring basis | Significant Other Observable Inputs (Level 2) |     Obligations of U.S. Government-sponsored enterprises
Assets
Securities available-for-sale	296,446	237,785
Recurring basis | Significant Other Observable Inputs (Level 2) | Obligations of states and political subdivisions
Assets
Securities available-for-sale	432,171	417,444
Recurring basis | Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities
Assets
Securities available-for-sale	700,381	659,404
Recurring basis | Significant Other Observable Inputs (Level 2) | Corporate Debt Securities [Member]
Assets
Securities available-for-sale	181,701	12,640
Recurring basis | Significant Other Observable Inputs (Level 2) | US Treasury Bill Securities [Member]
Assets
Securities available-for-sale	7,574	208,534
Recurring basis | Significant Unobservable Inputs (Level 3)
Assets
Securities available-for-sale	0	0
Obligations of U.S. Government-sponsored enterprises	0	0
Derivatives	0	0
Total assets	0	0
Liabilities
Derivatives	0	0
Total liabilities	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) |     Obligations of U.S. Government-sponsored enterprises
Assets
Securities available-for-sale	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Obligations of states and political subdivisions
Assets
Securities available-for-sale	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Residential mortgage-backed securities
Assets
Securities available-for-sale	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | Corporate Debt Securities [Member]
Assets
Securities available-for-sale	0	0
Recurring basis | Significant Unobservable Inputs (Level 3) | US Treasury Bill Securities [Member]
Assets
Securities available-for-sale	$ 0	$ 0

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Estimated fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
State Tax Credits Held For Sale, Fair Value Disclosure	$ 23,897	$ 28,880

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Financial Instruments and Non-Financial Assets Measured at Fair Value on a Non-Recurring Basis (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	$ 0	$ 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Individually-evaluated loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually-evaluated loans	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Loan servicing asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate		0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	0	1,027
Significant Other Observable Inputs (Level 2) | Individually-evaluated loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually-evaluated loans	0
Significant Other Observable Inputs (Level 2) | Other real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	0	0
Significant Other Observable Inputs (Level 2) | Loan servicing asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate		1,027
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	10,874	269
Significant Unobservable Inputs (Level 3) | Individually-evaluated loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually-evaluated loans	5,138
Significant Unobservable Inputs (Level 3) | Other real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	5,736	269
Significant Unobservable Inputs (Level 3) | Loan servicing asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate		0
Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	10,874	1,296
Total Fair Value | Individually-evaluated loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually-evaluated loans	5,138
Total Fair Value | Other real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	$ 5,736	269
Total Fair Value | Loan servicing asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate		$ 1,027

Fair Value Measurements - Sum_3

Fair Value Measurements - Summary of Carrying Amount and Fair Values of Financial Instruments Reported on the Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Balance sheet assets
Securities held-to-maturity	$ 750,434	$ 709,915
Carrying Amount
Balance sheet assets
Securities held-to-maturity	750,434	709,915
Other investments	63,255	61,123
Loans held-for-sale	359	1,228
Loans, net	10,749,347	9,600,206
State tax credits held for sale	22,115	27,700
Servicing asset	2,861	3,648
Balance sheet liabilities
Certificates of deposit	1,272,914	530,708
Subordinated debentures and notes	155,984	155,433
FHLB advances	0	100,000
Other borrowings	297,829	324,119
Estimated fair value
Balance sheet assets
Securities held-to-maturity	696,647	628,517
Other investments	63,255	61,123
Loans held-for-sale	359	1,228
Loans, net	10,392,551	9,328,844
State tax credits held for sale	23,897	28,880
Servicing asset	3,799	3,905
Balance sheet liabilities
Certificates of deposit	1,265,905	512,229
Subordinated debentures and notes	154,354	152,679
FHLB advances	0	100,004
Other borrowings	$ 274,658	$ 324,119

Parent Company Only Condensed_3

Parent Company Only Condensed Financial Statements - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Total assets	$ 14,518,590	$ 13,054,172
Subordinated debentures and notes	155,984	155,433
Shareholders' equity	1,716,068	1,522,263	$ 1,529,116	$ 1,078,975
Total liabilities and shareholders' equity	14,518,590	13,054,172
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Cash	100,418	99,018	$ 94,760	$ 75,475
Other assets	27,701	30,312
Total assets	1,887,646	1,699,463
Subordinated debentures and notes	155,984	155,433
Notes payable	11,429	17,143
Accounts payable and other liabilities	4,165	4,624
Shareholders' equity	1,716,068	1,522,263
Total liabilities and shareholders' equity	1,887,646	1,699,463
Enterprise Bank and Trust [Member] | Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Investments	1,748,260	1,553,657
Nonbank Subsidiaries [Member] | Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Investments	$ 11,267	$ 16,476

Parent Company Only Condensed_4

Parent Company Only Condensed Financial Statements - Condensed Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Income [Abstract]
Dividends from Bank	$ 1,410	$ 1,371	$ 1,275
Dividends from Other Subsidiaries	4,875	1,700	2,000
Expenses:
Interest expense	9,781	9,166	10,960
Income tax benefit	(52,467)	(56,417)	(35,578)
Net income	194,059	203,043	133,055
Total comprehensive income	223,376	53,934	114,712
Parent [Member]
Operating Income [Abstract]
Dividends from Bank	45,000	75,000	95,000
Other	7,736	1,086	3,600
Total income	57,611	77,786	100,600
Expenses:
Interest expense	10,856	9,825	11,406
Other expenses	8,774	8,580	11,037
Total expenses	19,630	18,405	22,443
Income before taxes and equity in undistributed earnings of subsidiaries	37,981	59,381	78,157
Income tax benefit	2,520	3,585	3,710
Net income	40,501	62,966	81,867
Equity in undistributed earnings of subsidiaries	153,558	140,077	51,188
Total comprehensive income	$ 194,059	$ 203,043	$ 133,055

Parent Company Only Condensed_5

Parent Company Only Condensed Financial Statements - Consolidated Statements of Cash Flow (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income available to common shareholders		$ 190,309	$ 199,002	$ 133,055
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation		10,146	8,006	6,017
Net cash provided by operating activities		268,238	216,640	160,575
Cash flows from investing activities:
Net cash paid for acquisitions and dispositions		0	0	212,642
Net cash used in investing activities		(1,307,782)	(1,383,784)	(23,114)
Cash flows from financing activities:
Repayments of Subordinated Debt		0	0	50,000
Dividends paid on common stock		(37,368)	(33,602)	(26,153)
Payments for Repurchase of Common Stock		0	32,923	60,589
Proceeds from issuance of preferred stock, net	$ 72,000	0	0	71,988
Dividends paid on preferred stock		(3,750)	(4,041)	0
Net cash provided by financing activities		1,181,214	(563,186)	1,346,525
Net increase in cash and cash equivalents		$ 141,670	$ (1,730,330)	$ 1,483,986
Noncash investing and financing transactions:
Common shares issued in connection with acquisitions		0	0	343,650
Parent [Member]
Cash flows from operating activities:
Net income available to common shareholders		$ 194,059	$ 203,043	$ 133,055
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation		4,439	8,006	6,017
Net income of subsidiaries		(203,433)	(216,777)	(148,188)
Dividends from subsidiaries		49,875	76,700	97,000
Other, net		(421)	6,102	(16)
Net cash provided by operating activities		44,519	77,074	87,868
Cash flows from investing activities:
Net cash paid for acquisitions and dispositions		0	0	2,346
Purchases of other investments		(1,002)	(2,187)	(2,204)
Proceeds from distributions on other investments		3,314	3,878	2,656
Net cash used in investing activities		2,312	1,691	2,798
Cash flows from financing activities:
Repayments of Subordinated Debt		0	0	(50,000)
Payments for the redemption of subordinated notes		(5,714)	(5,714)	(7,143)
Dividends paid on common stock		(37,368)	(33,602)	(26,153)
Payments for Repurchase of Common Stock		0	32,923	60,589
Proceeds from issuance of preferred stock, net		0	0	71,988
Dividends paid on preferred stock		(3,750)	(4,041)	0
Payments for the repurchase of equity instruments, net		1,401	1,773	516
Net cash provided by financing activities		(45,431)	(74,507)	(71,381)
Net increase in cash and cash equivalents		1,400	4,258	19,285
Cash and cash equivalents, beginning of period		99,018	94,760	75,475
Cash and cash equivalents, end of period	$ 94,760	$ 100,418	$ 99,018	$ 94,760
Noncash investing and financing transactions:
Common shares issued in connection with acquisitions		0	0	343,650

Supplemental Financial Inform_3

Supplemental Financial Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interim Period, Costs Not Allocable [Line Items]
Noninterest income	$ 68,725	$ 59,162	$ 67,743
Other expense	73,886	57,873	48,464
Amortization Expense
Interim Period, Costs Not Allocable [Line Items]
Other expense	4,601	5,367	5,691
Banking Expenses
Interim Period, Costs Not Allocable [Line Items]
Other expense	8,110	7,212	6,123
FDIC And Other Insurnace
Interim Period, Costs Not Allocable [Line Items]
Other expense	13,164	7,098	5,789
Loan, Legal Expenses
Interim Period, Costs Not Allocable [Line Items]
Other expense	8,639	6,943	7,130
Outside Services
Interim Period, Costs Not Allocable [Line Items]
Other expense	7,040	5,399	4,992
Other Expenses
Interim Period, Costs Not Allocable [Line Items]
Other expense	32,332	25,854	18,739
Community Development Fees
Interim Period, Costs Not Allocable [Line Items]
Noninterest income	4,037	5,304	5,491
Bank-owned life insurance
Interim Period, Costs Not Allocable [Line Items]
Noninterest income	3,688	3,324	2,938
Other income
Interim Period, Costs Not Allocable [Line Items]
Noninterest income	15,187	8,089	13,719
Total other noninterest income
Interim Period, Costs Not Allocable [Line Items]
Noninterest income	$ 22,912	$ 16,717	$ 22,148