Seacoast Banking Corporation of Florida (SBCF) 10-K 27 Feb 24 2023 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Jan. 31, 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	0-13660
Entity Registrant Name	Seacoast Banking Corporation of Florida
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	59-2260678
Entity Address, Address Line One	815 Colorado Avenue,
Entity Address, City or Town	Stuart
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	34994
City Area Code	(772)
Local Phone Number	287-4000
Title of 12(b) Security	Common Stock
Trading Symbol	SBCF
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
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 1,880,407
Entity Common Stock, Shares Outstanding		84,889,092
Documents Incorporated by Reference	Certain portions of the registrant’s Proxy Statement for the 2024 Annual Meeting of Shareholders (the “2024 Proxy Statement”) are incorporated by reference into Part III, Items 10 through 14 of this report. Other than those portions of the 2024 Proxy Statement specifically incorporated by reference herein pursuant to Items 10 through 14, no other portions of the 2024 Proxy Statement shall be deemed so incorporated.
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Central Index Key	0000730708

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2023
Audit Information [Abstract]
Auditor Name	Crowe LLP
Auditor Location	Fort Lauderdale, Florida
Auditor Firm ID	173

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest and dividends on securities
Taxable	$ 82,926	$ 56,611	$ 29,206
Nontaxable	354	546	577
Interest and fees on loans	581,105	315,717	251,471
Interest on interest bearing deposits and other investments	24,590	7,620	2,990
Total Interest Income	688,975	380,494	284,244
Interest Expense
Interest on deposits	126,535	7,318	3,605
Interest on time certificates	52,254	2,642	2,788
Interest on securities sold under agreement to repurchase	8,323	986	141
Interest on Federal Home Loan Bank borrowings	6,378	330	0
Interest on long-term debt	7,245	3,056	1,685
Total Interest Expense	200,735	14,332	8,219
Net Interest Income	488,240	366,162	276,025
Provision for credit losses	37,518	26,183	(9,421)
Net Interest Income After Provision for Credit Losses	450,722	339,979	285,446
Noninterest Income:
Service charges on deposit accounts	18,278	13,709	9,777
Interchange income	13,877	17,171	16,231
Wealth management income	12,780	11,051	9,628
Mortgage banking fees	1,790	3,478	11,782
Insurance agency income	4,510	805	0
SBA gains	2,105	842	1,531
BOLI income	8,401	5,572	4,154
Other	20,304	14,559	18,202
Noninterest income, excluding securities gains (losses)	82,045	67,187	71,305
Securities losses, net (includes net losses of $2.9 million for 2023, $0 for 2022 and net gains of $2.2 million for 2021 in other comprehensive income reclassifications)	(2,893)	(1,096)	(578)
Total Noninterest Income	79,152	66,091	70,727
Noninterest Expense:
Salaries and wages	177,637	130,100	97,283
Employee benefits	29,918	19,026	17,873
Outsourced data processing costs	52,098	27,510	19,919
Telephone / data lines	5,204	3,799	3,223
Occupancy	26,668	18,539	14,140
Furniture and equipment	8,692	6,420	5,390
Marketing	9,156	6,286	4,583
Legal and professional fees	17,514	20,703	11,376
FDIC assessments	8,630	3,137	2,405
Amortization of intangibles	28,726	9,101	5,033
Other real estate owned expense and net loss (gain) on sale	985	(1,534)	(264)
Provision for credit losses on unfunded commitments	1,239	1,157	133
Other	29,155	23,690	16,341
Total Noninterest Expense	395,622	267,934	197,435
Income Before Income Taxes	134,252	138,136	158,738
Income taxes	30,219	31,629	34,335
Net Income	$ 104,033	$ 106,507	$ 124,403
Net income per share of common stock
Diluted (in dollars per share)	$ 1.23	$ 1.66	$ 2.18
Basic (in dollars per share)	$ 1.24	$ 1.67	$ 2.20
Average common shares outstanding
Diluted (in shares)	84,329	64,264	57,088
Basic (in shares)	83,800	63,707	56,586

CONSOLIDATED STATEMENTS OF IN_2

CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Gains (losses) included in other comprehensive income reclassifications	$ (2.9)	$ 0	$ 2.2

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	$ 104,033	$ 106,507	$ 124,403
Other comprehensive income (loss):
Unrealized gains (losses) on available-for-sale securities, net of tax expense of $7.7 million in 2023, tax benefit of $57.1 million in 2022, and tax benefit of $8.2 million in 2021	23,645	(181,096)	(27,377)
Amortization of unrealized (gains) losses on securities transferred to held-to-maturity, net of tax benefit of $13 thousand in 2023, tax benefit of $7 thousand in 2022, and tax expense of $21 thousand in 2021	(42)	(20)	86
Reclassification adjustment for losses included in net income, net of tax benefit of $0.7 million in 2023 and tax benefit of $85 thousand in 2021	2,191	0	278
Unrealized gains on derivatives designated as fair value hedges, net of reclassifications to income, net of tax expense of $0.7 million in 2023	1,971	0	0
Unrealized gains (losses) on derivatives designated as cash flow hedges, net of reclassifications to income, net of tax expense of $0.1 million in 2023, tax benefit of $26 thousand in 2022, and tax expense of $0.1 million in 2021	390	77	(351)
Total other comprehensive income (loss)	28,155	(181,039)	(27,364)
Comprehensive Income (Loss)	$ 132,188	$ (74,532)	$ 97,039

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Unrealized gains (losses) on available-for-sale securities, tax expense (benefit)	$ 7,700	$ (57,100)	$ (8,200)
Amortization of unrealized (gains) losses on securities transferred to held-to-maturity, tax expense (benefit)	(13)	(7)	21
Reclassification adjustment for losses included in net income, tax (benefit) expense	(700)		(85)
Unrealized gains on derivatives designated as fair value hedges, net of reclassifications to income, tax expense	700
Unrealized gains (losses) on derivatives designated as cash flow hedges, net of reclassifications to income, tax expense (benefit)	$ 100	$ (26)	$ 100

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets
Cash and due from banks	$ 167,511	$ 120,748
Interest bearing deposits with other banks	279,671	81,192
Total cash and cash equivalents	447,182	201,940
Time deposits with other banks	5,857	3,236
Debt securities:
Securities available-for-sale (at fair value)	1,836,020	1,871,742
Securities held-to-maturity (fair value $558.4 million in 2023 and $617.7 million in 2022)	680,313	747,408
Total debt securities	2,516,333	2,619,150
Loans held for sale (at fair value)	4,391	3,151
Loans	10,062,940	8,144,724
Less: Allowance for credit losses	(148,931)	(113,895)
Loans, net of allowance for credit losses	9,914,009	8,030,829
Bank premises and equipment, net	113,304	116,892
Other real estate owned	7,560	2,301
Goodwill	732,417	480,319
Other intangible assets, net	95,645	75,451
Bank owned life insurance	298,974	237,824
Net deferred tax assets	113,232	94,457
Other assets	331,345	280,212
Total Assets	14,580,249	12,145,762
Deposits
Noninterest demand	3,544,981	4,070,973
Interest-bearing demand	2,790,210	2,337,590
Savings	651,454	1,064,392
Money market	3,314,288	1,985,974
Other time deposits	803,393	369,389
Brokered time certificates	122,347	3,798
Time certificates of more than $250,000	550,262	149,479
Total Deposits	11,776,935	9,981,595
Securities sold under agreements to repurchase, maturing within 30 days	374,573	172,029
FHLB borrowings	50,000	150,000
Long-term debt, net	106,302	84,533
Other liabilities	164,353	149,830
Total Liabilities	12,472,163	10,537,987
Commitments and Contingencies
Shareholders' Equity
Common stock, par value $0.10 per share authorized 120,000,000 shares, issued 85,480,183 and outstanding 84,861,498 shares in 2023 and authorized 120,000,000 shares, issued 72,099,136 and outstanding 71,617,852 shares in 2022	8,486	7,162
Additional paid-in capital	1,808,883	1,377,802
Retained earnings	467,305	423,863
Less: Treasury stock (618,685 shares in 2023 and 481,284 shares in 2022), at cost	(16,710)	(13,019)
Total shareholders' equity, before accumulated other comprehensive income (loss), net	2,267,964	1,795,808
Accumulated other comprehensive loss, net	(159,878)	(188,033)
Total Shareholders' Equity	2,108,086	1,607,775
Total Liabilities & Shareholders' Equity	$ 14,580,249	$ 12,145,762

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Held for investment, fair value, total	$ 558,359	$ 617,741
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	120,000,000	120,000,000
Common stock, shares issued (in shares)	85,480,183	72,099,136
Common stock, shares outstanding (in shares)	84,861,498	71,617,852
Treasury stock (in shares)	618,685	481,284

CONSOLIDATED STATEMENT OF CASH

CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows From Operating Activities
Net Income		$ 104,033	$ 106,507	$ 124,403
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		8,245	6,115	5,482
(Accretion of discounts) and amortization of premiums on securities, net		(949)	576	6,220
Amortization of operating lease right-of-use assets		8,053	6,485	4,576
Other amortization and accretion, net		(15,875)	(1,967)	(13,908)
Stock based compensation		13,440	11,155	8,685
Origination of loans designated for sale		(113,151)	(186,504)	(490,426)
Sale of loans designated for sale		116,563	221,199	543,410
Provision for credit losses		37,518	26,183	(9,421)
Deferred income taxes		9,442	(10,398)	3,836
Losses on sale of securities		2,935	0	363
Gains on sale of loans		(4,211)	(5,687)	(15,276)
Losses (gains) on sale and write-downs of other real estate owned		450	(1,749)	(635)
Losses on disposition of fixed assets and write-downs upon transfer of bank premises to other real estate owned		1,842	1,394	817
Changes in operating assets and liabilities, net of effects from acquired companies:
Net (increase) decrease in other assets		(8,967)	508	(42,437)
Net (decrease) increase in other liabilities		(8,755)	22,042	28,883
Net Cash Provided by Operating Activities		150,613	195,859	154,572
Cash Flows From Investing Activities
Maturities and repayments of available-for-sale debt securities		220,114	270,785	546,339
Maturities and repayments of held-to-maturity debt securities		69,471	96,925	132,916
Proceeds from sale of available-for-sale debt securities		113,400	515,183	84,972
Purchases of available-for-sale debt securities		(100,873)	(693,625)	(1,145,193)
Purchases of held-to-maturity debt securities		0	(206,065)	(377,159)
Maturities of time deposits with other banks		1,984	3,237	750
Purchases of time deposits with other banks		(4,605)	0	0
Net new loans and principal repayments		110,665	(513,343)	566,348
Purchases of loans held for investment		0	(111,292)	(259,267)
Proceeds from sale of other real estate owned		577	15,951	5,598
Additions to other real estate owned		0	(591)	(2,513)
Proceeds from sale of FHLB and Federal Reserve Bank stock		73,473	0	3,945
Purchase of FHLB and Federal Reserve Bank stock		(88,141)	(11,924)	(3,020)
Redemption of bank owned life insurance		0	25,782	0
Purchase of bank owned life insurance		0	(25,000)	(60,000)
Net cash from bank acquisitions		141,674	281,747	98,100
Additions to bank premises and equipment		(10,293)	(12,645)	(4,327)
Net Cash Provided by (Used in) Investing Activities		527,446	(364,875)	(412,511)
Cash Flows From Financing Activities
Net (decrease) increase in deposits		(324,002)	(384,403)	640,108
Net increase in repurchase agreements		202,544	50,464	1,956
Net decrease in FHLB borrowings with original maturities of three months or less		(280,000)	(62,500)	0
Repayments of FHLB borrowings with original maturities of more than three months		(75,000)	(7,500)	(33,000)
Proceeds from FHLB borrowings with original maturities of more than three months		110,000	75,000	0
Stock based employee benefit plans		5,100	3,408	5,022
Repurchase of common stock		(10,868)	0	0
Dividends paid		(60,591)	(41,242)	(22,506)
Net Cash (Used in) Provided by Financing Activities		(432,817)	(366,773)	591,580
Net increase (decrease) in cash and cash equivalents		245,242	(535,789)	333,641
Cash and Cash Equivalents at Beginning of Year		201,940	737,729	404,088
Cash and Cash Equivalents at End of Year		447,182	201,940	737,729
Supplemental disclosure of cash flow information:
Cash paid during the period for interest		191,225	13,743	9,977
Net (refund received) cash paid during the period for taxes		(5,921)	29,591	30,887
Recognition of operating lease right-of-use assets, other than through bank acquisition, net of terminations		2,068	3,370	12,459
Recognition of operating lease liabilities, other than through bank acquisition, net of terminations		2,080	3,370	12,459
Supplemental disclosure of non-cash investing activities:1
Transfer of debt securities from available-for-sale to held-to-maturity	[1]	0	0	210,805
Unsettled sales of debt securities available-for-sale	[1]	0	0	17,147
Transfer from bank premises to other real estate owned	[1]	$ 6,286	$ 1,674	$ 3,318
[1] 1 See "Note 17 - Business Combinations" for non cash transactions related to business combinations.

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2020		55,243,000
Beginning balance at Dec. 31, 2020	$ 1,130,402	$ 5,524	$ 856,092	$ 256,701	$ (8,285)	$ 20,370
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	97,039			124,403		(27,364)
Stock based compensation expense (in shares)		23,000
Stock based compensation expense	8,685		8,685
Common stock issued for stock based employee benefit plans (in shares)		167,000
Common stock issued for stock based employee benefit plans	(2,314)	$ 19	(49)		(2,284)
Common stock issued for stock options (in shares)		384,000
Common stock issued for stock options	7,336	$ 38	7,298
Issuance of common stock, pursuant to acquisition (in shares)		2,687,000
Issuance of common stock, pursuant to acquisition	86,487	$ 269	86,218
Conversion of options, pursuant to acquisition	5,607		5,607
Dividends on common stock	(22,506)			(22,506)
Ending balance (in shares) at Dec. 31, 2021		58,504,000
Ending balance at Dec. 31, 2021	1,310,736	$ 5,850	963,851	358,598	(10,569)	(6,994)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	(74,532)			106,507		(181,039)
Stock based compensation expense (in shares)		21,000
Stock based compensation expense	11,155		11,155
Common stock issued for stock based employee benefit plans (in shares)		367,000
Common stock issued for stock based employee benefit plans	(2,507)	$ 40	(97)		(2,450)
Common stock issued for stock options (in shares)		522,000
Common stock issued for stock options	5,916	$ 52	5,864
Issuance of common stock, pursuant to acquisition (in shares)		12,204,000
Issuance of common stock, pursuant to acquisition	397,236	$ 1,220	396,016
Conversion of options, pursuant to acquisition	1,013		1,013
Dividends on common stock	$ (41,242)			(41,242)
Ending balance (in shares) at Dec. 31, 2022	71,617,852	71,618,000
Ending balance at Dec. 31, 2022	$ 1,607,775	$ 7,162	1,377,802	423,863	(13,019)	(188,033)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	132,188			104,033		28,155
Stock based compensation expense (in shares)		30,000
Stock based compensation expense	13,440		13,440
Common stock issued for stock based employee benefit plans (in shares)		970,000
Common stock issued for stock based employee benefit plans	5,100	$ 100	8,691		(3,691)
Issuance of common stock, pursuant to acquisition (in shares)		12,792,000
Issuance of common stock, pursuant to acquisition	410,738	$ 1,279	409,459
Conversion of options, pursuant to acquisition	10,304		10,304
Repurchase of common stock (in shares)		(549,000)
Repurchase of common stock	(10,868)	$ (55)	(10,813)
Dividends on common stock	$ (60,591)			(60,591)
Ending balance (in shares) at Dec. 31, 2023	84,861,498	84,861,000
Ending balance at Dec. 31, 2023	$ 2,108,086	$ 8,486	$ 1,808,883	$ 467,305	$ (16,710)	$ (159,878)

CONSOLIDATED STATEMENTS OF SH_2

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Stockholders' Equity [Abstract]
Dividends on common stock (in dollars per share)	$ 0.71	$ 0.64	$ 0.39

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies General: Seacoast Banking Corporation of Florida (“Seacoast” or the “Company”) is a single segment financial holding company with one operating subsidiary bank, Seacoast National Bank (“Seacoast Bank”). The Company provides integrated financial services including commercial and consumer banking, wealth management, and mortgage and insurance services to customers at 77 full-service branches across Florida, and through advanced mobile and online banking solutions. The consolidated financial statements include the accounts of Seacoast and all its majority-owned subsidiaries but exclude trusts created for the issuance of trust preferred securities. In consolidation, all significant intercompany accounts and transactions are eliminated. The accounting and reporting policies of the Company are in accordance with accounting principles generally accepted in the United States of America, and they conform to general practices within the applicable industries. Certain prior period amounts have been reclassified to conform to the current period presentation. Use of Estimates: The preparation of consolidated financial statements requires management to make judgments in the application of certain accounting policies that involve significant estimates and assumptions. The Company has established policies and control procedures that are intended to ensure valuation methods are well controlled and applied consistently from period to period. These estimates and assumptions, which may materially affect the reported amounts of certain assets, liabilities, revenues and expenses, are based on information available as of the date of the financial statements, and changes in this information over time and the use of revised estimates and assumptions could materially affect amounts reported in subsequent financial statements. Specific areas, among others, requiring the application of management’s estimates include the determination of the allowance for credit losses, acquisition accounting and purchased loans, intangible assets and impairment testing, and other fair value measurements. Cash and Cash Equivalents: Cash and cash equivalents include cash and due from banks and interest-bearing bank balances. Cash equivalents have original maturities of three months or less, and accordingly, the carrying amount of these instruments is deemed to be a reasonable estimate of fair value. Time Deposits with Other Banks: Time deposits with other banks consist of certificates of deposit with original maturities greater than three months and are carried at cost. Securities Purchased and Sold Agreements: Securities purchased under resale agreements and securities sold under repurchase agreements are generally accounted for as collateralized financing transactions and are recorded at the amount at which the securities were acquired or sold plus accrued interest. It is the Company’s policy to take possession of securities purchased under resale agreements, which are primarily U.S. government and government agency securities. The fair value of securities purchased and sold is monitored and collateral is obtained from or returned to the counterparty when appropriate. Securities: Debt securities are classified as available-for-sale or held-to-maturity. Debt securities available-for-sale may be sold as part of the Company's asset/liability management or in response to, or in anticipation of, changes in interest rates and resulting prepayment risk, or for other factors, and are stated at fair value. Unrealized gains or losses are reflected as a component of shareholders' equity net of tax or included in noninterest income as appropriate. Debt securities held-to-maturity that the Company has the ability and intent to hold to maturity are carried at amortized cost. Equity securities with readily determinable fair values are considered marketable and measured at fair value with unrealized gains or losses included in noninterest income as securities gains or losses. Equity investments that do not have readily determinable fair values are considered non-marketable and are accounted for at cost under the measurement alternative to fair value, with adjustments for impairment and observable price changes if applicable. The estimated fair value of a security is determined based on market quotations when available or, if not available, by using quoted market prices for similar securities, pricing models or discounted cash flow analyses, using observable market data where available. Realized gains and losses are included in noninterest income as investment securities gains (losses). Interest and dividends on securities, including amortization of premiums and accretion of discounts on debt securities, is recognized in interest income on an accrual basis using the interest method. The Company anticipates prepayments of principal in the calculation of the effective yield for collateralized mortgage obligations and mortgage backed securities by obtaining estimates of prepayments from independent third parties. The adjusted cost of each specific security sold is used to compute realized gains or losses on the sale of securities on a trade date basis. Credit losses on securities: For securities classified as held-to-maturity, management estimates expected credit losses over the remaining expected life and recognizes this estimate as an allowance for credit losses. Debt securities that are available-for-sale are considered impaired if the fair value is less than amortized cost. Impairments are analyzed at an individual security level on a quarterly basis and both quantitative and qualitative assessments are utilized to determine if a security has a credit loss. Qualitative assessments consider a range of factors including: percent decline in fair value, rating downgrades, subordination, duration, amortized loan-to-value, and the ability of the issuers to pay all amounts due in accordance with the contractual terms. Quantitative assessments are based on a discounted cash flow analysis, which includes evaluating the timing and amount of the expected cash flows. If any portion of the decline in fair value is related to credit, then the credit loss is recognized as an allowance for credit loss and the noncredit portion is recognized in other comprehensive income. For securities classified as available-for-sale, both quantitative and qualitative assessments are utilized to determine if a security has a credit loss. Quantitative assessments are based on a discounted cash flow method. Qualitative assessments consider a range of factors including: percent decline in fair value, rating downgrades, subordination, duration, amortized loan-to-value, and the ability of the issuers to pay all amounts due in accordance with the contractual terms. Loans Held for Sale: The Company has elected to account for residential mortgage loans originated as held for sale at fair value. Changes in fair value are measured and recorded in Mortgage Banking Fees in noninterest income each period. The Company designates other loans as held for sale when it has the intent to sell them. These loans are recorded at the lower of cost or estimated fair value on an individual basis. When such loans are transferred to held for sale, any previously recorded allowance for credit losses is reversed into earnings and the loan is recorded at its amortized cost basis. Prior to the transfer, write-downs on the loans are recorded as charge-offs, establishing a new cost basis upon transfer. Loans Held for Investment: Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are considered held for investment. Loans originated by Seacoast and held for investment are recognized at the principal amount outstanding, net of unearned income and amounts charged off. Unearned income includes discounts, premiums and deferred loan origination fees reduced by loan origination costs. Unearned income on loans is amortized to interest income over the life of the related loan using the effective interest rate method. Interest income is recognized on an accrual basis. Loans acquired through business acquisitions are recorded at fair value on the acquisition date. Loans that, as of the date of acquisition, have experienced a more-than-insignificant deterioration in credit quality since origination are classified as purchased credit deteriorated (“PCD”). Acquired loans that do not meet the definition of PCD are classified by the Company as acquired Non-PCD. Expected credit losses on loans not considered PCD are recognized through the provision for credit losses when the initial allowance is recorded. A loan for which the terms have been modified with principal forgiveness, an interest rate reduction, an other-than-insignificant payment delay or a term extension and for which the borrower is experiencing financial difficulty, is considered to be a troubled borrower modification ("TBM"). Allowance for credit losses on loans: The allowance for credit losses represents management's best estimate of expected credit losses related to the loan portfolio at the balance sheet date. The allowance for credit losses is a valuation account that is deducted from the loans' amortized cost basis to present the net amount to be collected on loans. Loan balances deemed uncollectible are charged off against the allowance for credit losses and recoveries are credited to the allowance. In order to adjust the allowance to the current estimate of expected credit losses, charges or credits to the provision for credit losses are reflected in the Consolidated Statements of Income. The Company excludes accrued interest on loans from its determination of allowance. Portfolio segments represent the level at which the Company develops and documents its methodology for determining its allowance for credit losses. See Note 4 - Loans, for a description of each of the segments, which are disaggregated by similar risk characteristics such as customer and/or collateral type. The allowance for credit losses is measured on a collective basis when similar risk characteristics exist. Management establishes the allowance using relevant available information from both internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Economic forecast data is sourced from Moody’s Analytics (“Moody’s”), a firm recognized for its research, analysis, and economic forecasts. The forecasts of future economic conditions are over a period that has been deemed reasonable and supportable, and in segments where it can no longer develop reasonable and supportable forecasts, the Company reverts to longer-term historical loss experience to estimate losses over the remaining life of the loans. The forecast may utilize one scenario or a composite of scenarios based on management's judgment and expectations around the current and future macroeconomic outlook. Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. In the implementation of CECL at January 1, 2020 and through June 30, 2022, the Company utilized a top-down allowance model based on an analysis of the probability of default (“PD”) and loss given default (“LGD”) to determine an expected loss by loan segment. During the third quarter of 2022, the Company transitioned to a tool that calculates the quantitative portion of expected credit losses at the individual loan level using a discounted cash flow methodology for its commercial loans and using a loss rate methodology for its consumer loans. The Moody's tool being utilized produces more granular results, incorporates more extensive historical loss data, and allows for a more efficient process. This change did not result in a material impact to the Company’s financial statements. Adjustments may be made to baseline reserves based on an assessment of internal and external influences on credit quality not fully reflected in the quantitative components of the allowance model. These influences may include elements such as changes in concentration, macroeconomic conditions, recent observable asset quality trends, staff turnover, regional market conditions, employment levels, model risk, and loan growth. Based upon management's assessments of these factors, the Company may apply qualitative adjustments to the allowance. Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. For loans that are individually evaluated, the allowance is determined through review of data specific to the borrower and the related collateral, if any. When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs as appropriate. The allowance for PCD loans is determined at the time of acquisition as the estimated expected credit loss of the outstanding balance or par value, based on the methodologies described previously for loans. The allowance recognized at acquisition is added to the acquisition date purchase price to determine the asset’s amortized cost basis. It is the Company's practice to ensure that the charge-off policy aligns with regulatory requirements. Losses on unsecured consumer loans are recognized at 90 days past due. In compliance with Federal Financial Institution Examination Council guidelines, secured consumer loans, including residential real estate, are typically charged off or charged down between 120 and 180 days past due, depending on the collateral type. Commercial loans and real estate loans are typically placed on nonaccrual status when principal or interest is past due for 90 days or more, unless the loan is both secured by collateral having realizable value sufficient to discharge the debt in-full and the loan is in process of collection. Secured loans may be charged down to the estimated value of the collateral with previously accrued unpaid interest reversed against interest income. Subsequent charge-offs may be required as a result of changes in the market value of collateral or other repayment prospects. Initial charge-off amounts are based on valuation estimates derived from appraisals or other market information. Generally, new appraisals are not received until the foreclosure process is completed; however, collateral values are evaluated periodically based on market information and incremental charge-offs are recorded if it is determined that collateral values have declined from their initial estimates. Derivative Instruments and Hedging Activities : The Company enters into derivative contracts, including swaps and floors, to meet the needs of customers who request such services and to manage the Company's exposure to interest rate fluctuations. Derivative contracts are carried at fair value and recorded in the consolidated balance sheet within Other Assets or Other Liabilities. The gain or loss resulting from changes in the fair value of interest rate swaps designated and qualifying as cash flow hedging instruments is initially reported as a component of other comprehensive income and subsequently reclassified into earnings through interest income in the same period in which the hedged transaction affects earnings. The gain or loss resulting from changes in the fair value of interest rate swaps designed as fair value hedges is classified in the statement of income or comprehensive income in the line item associated with the instrument being hedged. The Company discontinues hedge accounting prospectively when it is determined that the derivative contract is no longer effective in offsetting changes in the cash flows of the hedged item, the derivative expires or is terminated, management determines that the designation of the derivative as a hedging instrument is no longer appropriate or, for a cash flow hedge, the occurrence of the forecasted transaction is no longer probable. When hedge accounting on a cash flow hedge is discontinued, any subsequent changes in fair value of the derivative are recognized in earnings. The cumulative unrealized gain or loss related to a discontinuing cash flow hedge continues to be reported in Accumulated Other Comprehensive Income (“AOCI”) and is subsequently reclassified into earnings in the same period in which the hedged transactions affects earnings, unless it is probable that the forecasted transaction will not occur by the end of the originally specified time period, in which case the cumulative unrealized gain or loss in AOCI is reclassified into earnings immediately. Cash flows resulting from derivative financial instruments that are accounted for as hedges are classified in the cash flow statement in the same category as the cash flows from the hedged items. See additional disclosures related to derivative instruments and hedging activities in “Note 6 – Derivatives”. Loan Commitments and Letters of Credit: Loan commitments and letters of credit are an off-balance sheet item and represent commitments to make loans or lines of credit available to borrowers. The face amount of these commitments represents an exposure to loss, before considering customer collateral or ability to repay. Such commitments are recognized as loans when funded. The Company estimates a reserve for potential losses on unfunded commitments, which is reported separately from the allowance for credit losses within Other Liabilities. Changes to the allowance for credit losses on unfunded commitments are recorded in noninterest expense on the income statement. The reserve is based upon the same quantitative and qualitative factors applied to the collectively evaluated loan portfolio. Fees on commitments are typically deferred and amortized to interest income over the life of the related loan, beginning with the initial borrowing. Fair Value Measurements: The Company measures or monitors the fair value of many of its assets and liabilities. Certain assets are measured on a recurring basis, including available-for-sale securities, equity securities and derivatives. These assets are carried at fair value on the Company’s balance sheets. Additionally, fair value is measured on a non-recurring basis to evaluate assets or liabilities for impairment. Examples include collateral-dependent loans, other real estate owned, loan servicing rights, and long-lived assets. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Depending on the nature of the asset or liability, the Company uses various valuation techniques and assumptions when estimating fair value. The Company applies the following fair value hierarchy: Level 1 – Assets or liabilities for which the identical item is traded on an active exchange, such as publicly-traded instruments. Level 2 – Assets and liabilities valued based on observable market data for similar instruments. Level 3 – Assets and liabilities for which significant valuation assumptions are not readily observable in the market; instruments valued based on the best available data, some of which is internally-developed, and considers risk premiums that a market participant would require. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at and/or marked to fair value, the Company considers the principal market in which it would transact and considers assumptions that market participants would use when pricing the asset or liability. When possible, the Company looks to active and observable markets to price identical assets or liabilities. When identical assets and liabilities are not traded in active markets, the Company looks to market observable data for similar assets and liabilities. Certain assets and liabilities are not actively traded in observable markets and the Company must use alternative valuation techniques to derive a fair value measurement. Bank Premises and Equipment: Bank premises and equipment are stated at cost, less accumulated depreciation and amortization. Premises and equipment include certain costs associated with the acquisition of leasehold improvements. Depreciation and amortization are recognized principally by the straight-line method, over the estimated useful lives as follows: buildings - 25-40 years, leasehold improvements - 5-25 years, furniture and equipment - 3-12 years. Leasehold improvements amortize over the shorter of the lease term or estimated useful life. Premises and equipment and other long-term assets are reviewed for impairment when events indicate their carrying amount may not be recoverable. If impaired, the assets are written down to fair value with a corresponding increase to noninterest expense. Other Real Estate Owned: Other real estate owned (“OREO”) consists of real estate taken in foreclosure of defaulted loan balances. These assets are carried at an amount equal to the loan balance prior to foreclosure plus costs incurred for improvements to the property, but no more than the estimated fair value of the property less estimated selling costs. Any valuation adjustments required at the date of transfer are charged to the allowance for credit losses. Subsequently, unrealized losses and realized gains and losses are included in other noninterest expense. Operating results from OREO are recorded in other noninterest expense. OREO may also include bank premises no longer utilized in the course of the Company's business (closed branches) that are initially recorded at the lower of carrying value or fair value, less costs to sell. If the fair value of the premises is less than carrying value, a write down is recorded through noninterest expense. Costs to maintain the property are expensed. Intangible Assets. The Company’s intangible assets consist of goodwill, core deposit intangibles (CDIs), customer relationship intangibles and loan servicing rights. Goodwill results from business combinations and represents the difference between the purchase price and the fair value of net assets acquired. Goodwill may be adjusted for up to one year from the acquisition date in the event new information is obtained which, if known at the date of the acquisition, would have impacted the fair value of the acquired assets and liabilities. Goodwill is considered to have an indefinite useful life and is not amortized, but rather tested for impairment annually in the fourth quarter, or more often if circumstances arise that may indicate risk of impairment. If impaired, goodwill is written down with a corresponding impact to noninterest expense. The Company recognizes CDI that results from either whole bank acquisitions or branch acquisitions. CDI is initially measured at fair value and then amortized over periods ranging from six Bank Owned Life Insurance (BOLI): The Company, through its subsidiary bank, has purchased or acquired through bank acquisitions, life insurance policies on certain key executives and members of management. BOLI is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. Other Investments: Included in Other Assets are investments in funds generating affordable housing tax credits, and investments in Small Business Investment Companies (“SBICs”), which are privately owned and operated companies licensed by the U.S. Small Business Administration (“SBA”) to invest in small businesses. Investments generating tax credits are accounted for using the proportional amortization method. Under this method, the investor amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits allocated to the investor. The amortization is recorded in income tax expense within the income statement, which is the location the related tax credits are recorded. SBIC investments are held at cost less impairment, if any. Income from SBIC investments is recognized in noninterest income. Seacoast Bank is a member of the Federal Home Loan Bank (“FHLB”) and Federal Reserve Bank (“FRB”) systems. Members are required to own a certain amount of FHLB and FRB stock based on the level of borrowings and other factors, and may invest in additional amounts. The FHLB and FRB stock are accounted for at cost less impairment, if any. Both cash and stock dividends are recognized in earnings. Leases: Arrangements are analyzed at inception to determine the existence of a lease. Right-of-use assets (ROUAs) represent the right to use the underlying asset and lease liabilities represent the obligation to make lease payments for the lease term. Operating lease ROUAs and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As most of the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the appropriate term and information available at commencement date in determining the present value of lease payments. The lease term may include options to extend the lease when it is reasonably certain that the option will be exercised. ROUAs and operating lease liabilities are reported in Other Assets and Other Liabilities, respectively, in the Consolidated Balance Sheet. Lease expense for lease payments is recognized on a straight-line basis over the lease term and is classified as Occupancy or Furniture and Equipment expense based on the subject asset. Revenue Recognition: The Company recognizes two types of revenue in its Consolidated Statements of Income, interest income and noninterest income. The Company's principal source of revenue is interest income from loans and securities which is recognized on an accrual basis using the effective interest method. Noninterest income includes revenue from various types of transactions and services provided to customers. The Company recognizes revenue from contracts with customers as performance obligations are satisfied. Performance obligations are typically satisfied in one year or less. Relevant activity includes: • Service Charges on Deposits: Seacoast Bank offers a variety of deposit-related services to its customers through several delivery channels including branch offices, ATMs, telephone, mobile, and internet banking. Transaction-based fees are recognized when services, each of which represents a performance obligation, are satisfied. Service fees may be assessed monthly, quarterly, or annually; however, the account agreements to which these fees relate can be canceled at any time by Seacoast and/or the customer. Therefore, the contract term is considered a single day (a day-to-day contract). • Wealth Management Income: The Company earns trust fees from fiduciary services provided to trust customers, which include custody of assets, recordkeeping, collection and distribution of funds. Fees are earned over time and accrued monthly as the Company provides services, and are generally assessed based on the market value of the trust assets under management at a particular date or over a particular period. The Company also earns commissions and fees from investment brokerage services provided to its customers through an arrangement with a third-party service provider. Commissions received from the third-party service provider are recorded monthly and are based upon customer activity. Fees are earned over time and accrued monthly as services are provided. The Company acts as an agent in this arrangement and therefore presents the brokerage commissions and fees net of related costs. • Interchange Income: Fees earned on card transactions depend upon the volume of activity, as well as the fees permitted by the payment network. Such fees are recognized by the Company upon fulfilling its performance obligation to approve the card transaction. • Insurance Agency Income: Insurance commissions are earned upon the sale of insurance products as agent and are paid by the insurance companies upon the completion of application requirements and receipt of client payment to the insurance company. The commissions are recognized upon the placement date of the insurance policies, representing the Company’s related performance obligations. Commission payment is normally received within the policy period. Treasury Stock and Share Repurchases: The Company's repurchases of shares of its common stock are recorded at cost as additional paid-in capital and result in a reduction of shareholders' equity. Shares repurchased in 2023 pursuant to the Company's share repurchase program were immediately retired, and therefore were not included in treasury stock. Activity in treasury stock represents shares traded to offset employee payroll taxes on vested shares. Shares held in treasury are also used for employee share purchases through the Company's employee stock purchase plan. Stock-Based Compensation: The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model with market assumptions. The fair value is amortized on a straight-line basis over the vesting period, generally five years. For restricted stock awards, which generally vest based on continued service with the Company, the deferred compensation is measured as the fair value of the shares on the date of grant, and the deferred compensation is amortized as salaries and wages expense in accordance with the applicable vesting schedule, generally straight-line over three years. Some award shares vest based upon the Company achieving certain performance goals and the amortization expense recorded within salaries and wages is based on an estimate of the most likely results on a straight line basis. The Company accounts for forfeitures as they occur. Income Taxes : Deferred tax assets and liabilities are determined based on temporary differences between the carrying amounts of assets and liabilities in the consolidated financial statements and their related tax bases and are measured using the enacted tax rates and laws that are in effect. A valuation allowance is recognized for a deferred tax asset if, based on the weight of available evidence, it is more likely than not that some portion or all of the deferred tax asset will not be realized. The effect on deferred tax assets and liabilities of a change in rates is recognized as income or expense in the period in which the change occurs. Recently Adopted Accounting Standards On January 1, 2023, the Company adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2022-02, “Troubled Debt Restructurings and Vintage Disclosures.” ASU 2022-02 eliminates the accounting guidance for troubled debt restructurings (“TDRs”) in ASC 310-40, Receivables – Troubled Debt Restructurings by Creditors , and introduces new disclosures related to modifications with borrowers that are experiencing financial difficulties. ASU 2022-02 also requires the disclosure of current-period gross write-offs by year of origination for financing receivables held at amortized cost. Upon adoption, the Company eliminated the separate credit loss estimation process for loans classified as TDRs. The adoption did not have a material impact to the consolidated financial statements. For additional information on the loans modified for borrowers in financial difficulty and for the disclosure of current-period gross write-offs by year of origination, see “Note 4 – Loans.” On January 1, 2023, the Company adopted FASB ASU 2022-01, “Fair Value Hedging - Portfolio Layer Method.” ASU 2022-01 permits the designation of multiple hedging relationships on a single closed portfolio. The guidance also expands the scope of the portfolio layer method to include non-prepayable assets, specifies eligible hedging instruments in a single-layer hedge, and provides additional guidance on the accounting for and disclosure of hedge basis adjustments under the portfolio layer method. The adoption did not have a material impact to the consolidated financial statements. For additional information on fair value hedges, see “Note 6 – Derivatives.” Issued Accounting Standards In November 2023, the FASB issued ASU 2023-07, "Improvements to Reportable Segment Disclosures." ASU 2023-07 requires disclosure of significant segment expenses and other segment items on an interim and annual basis. The standard is effective for fiscal years beginning aft

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 share are computed by dividing net income available to common shareholders by the weighted-average number of common shares outstanding during each period. Diluted earnings per share are based on the weighted-average number of common shares outstanding during each period, plus common share equivalents, calculated for share-based awards outstanding using the treasury stock method. In 2023 and 2022, options to purchase 344,230 and 1,505 shares of the Company's common stock, respectively, were antidilutive and accordingly were excluded in determining diluted earnings per share. In 2021, no options were antidilutive. For the Year Ended December 31, (In thousands, except per share data) 2023 2022 2021 Basic earnings per share Net Income $ 104,033 $ 106,507 $ 124,403 Total weighted average common stock outstanding 83,800 63,707 56,586 Net income per share $ 1.24 $ 1.67 $ 2.20 Diluted earnings per share Net Income $ 104,033 $ 106,507 $ 124,403 Total weighted average common stock outstanding 83,800 63,707 56,586 Add: Dilutive effect of share-based awards outstanding 529 557 502 Total weighted average diluted stock outstanding 84,329 64,264 57,088 Net income per share $ 1.23 $ 1.66 $ 2.18 Net income has not been allocated to unvested restricted stock awards that are participating securities because the amounts that would be allocated are not material to net income per share of common stock. Unvested restricted stock awards that are participating securities represent less than one percent of all of the outstanding shares of common stock for each of the periods presented.

Securities

Securities	12 Months Ended
	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Securities	Securities The amortized cost, gross unrealized gains and losses and fair value of AFS and HTM securities at December 31, 2023 and December 31, 2022 are summarized as follows: December 31, 2023 (In thousands) Amortized Gross Gross Fair Available-for-Sale Debt Securities U.S. Treasury securities and obligations of U.S. government agencies $ 37,718 $ 205 $ (478) $ 37,445 Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 1,152,753 780 (184,152) 969,381 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 385,013 2,824 (19,565) 368,272 Private mortgage-backed securities and collateralized mortgage obligations 135,878 36 (10,911) 125,003 Collateralized loan obligations 300,855 11 (1,411) 299,455 Obligations of state and political subdivisions 10,486 — (1,096) 9,390 Other debt securities 26,599 576 (101) 27,074 Totals $ 2,049,302 $ 4,432 $ (217,714) $ 1,836,020 Held-to-Maturity Debt Securities Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 590,676 $ — $ (111,746) $ 478,930 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 89,637 — (10,208) 79,429 Totals $ 680,313 $ — $ (121,954) $ 558,359 December 31, 2022 (In thousands) Amortized Gross Gross Fair Available-for-Sale Debt Securities U.S. Treasury securities and obligations of U.S. government agencies $ 13,813 $ 173 $ (339) $ 13,647 Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 1,170,062 539 (196,272) 974,329 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 391,135 — (26,811) 364,324 Private mortgage-backed securities and collateralized mortgage obligations 179,148 70 (12,831) 166,387 Collateralized loan obligations 313,155 — (10,251) 302,904 Obligations of state and political subdivisions 29,350 122 (1,731) 27,741 Other debt securities 22,640 197 (427) 22,410 Totals $ 2,119,303 $ 1,101 $ (248,662) $ 1,871,742 Held-to-Maturity Debt Securities Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 634,300 $ 64 $ (116,711) $ 517,653 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 113,108 — (13,020) 100,088 Totals $ 747,408 $ 64 $ (129,731) $ 617,741 During the year ended December 31, 2023, debt securities with a fair value of $113.4 million were sold, with gross gains of $25 thousand and gross losses of $3.0 million. During 2022, debt securities with a fair value of $515.2 million obtained in bank acquisitions were sold. No gain or loss was recognized on these sales, and there were no other sales of securities in 2022. Debt securities with a fair value of $102.1 million were sold during 2021, with gross gains of $0.3 million and gross losses of $0.6 million. Also included in “Securities losses, net” is an increase of $42 thousand in 2023, and decreases of $1.1 million and $0.2 million in 2022 and 2021, respectively, in the value of investments in mutual funds that invest in CRA-qualified debt securities. At December 31, 2023, debt securities with a fair value of $1.7 billion were pledged primarily as collateral for public deposits and secured borrowings. The amortized cost and fair value of securities at December 31, 2023, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because prepayments of the underlying collateral for these securities may occur, due to the right to call or repay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately. Held-to-Maturity Available-for-Sale (In thousands) Amortized Fair Amortized Fair Due in less than one year $ — $ — $ 4,537 $ 4,504 Due after one year through five years — — 6,066 6,069 Due after five years through ten years — — 9,465 9,362 Due after ten years — — 28,136 26,900 $ — $ — $ 48,204 $ 46,835 Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 590,676 $ 478,930 $ 1,152,753 $ 969,381 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 89,637 79,429 385,013 368,272 Private mortgage-backed securities and collateralized mortgage obligations — — 135,878 125,003 Collateralized loan obligations — — 300,855 299,455 Other debt securities — — 26,599 27,074 Totals $ 680,313 $ 558,359 $ 2,049,302 $ 1,836,020 The estimated fair value of a security is determined based on market quotations when available or, if not available, by using quoted market prices for similar securities, pricing models or discounted cash flows analyses, or using observable market data. The tables below indicate the fair value of available-for-sale debt securities with unrealized losses for which no allowance for credit losses has been recorded. December 31, 2023 Less than 12 months 12 months or longer Total 1 (In thousands) Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury securities and obligations of U.S. government agencies $ 24,933 $ (143) $ 3,594 $ (335) $ 28,527 $ (478) Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 91,867 (9,320) 826,324 (174,832) 918,191 (184,152) Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 24,251 (1,270) 262,666 (18,295) 286,917 (19,565) Private mortgage-backed securities and collateralized mortgage obligations 3,945 (69) 119,475 (10,842) 123,420 (10,911) Collateralized loan obligations 60,087 (223) 232,545 (1,188) 292,632 (1,411) Obligations of state and political subdivisions 326 (2) 9,064 (1,094) 9,390 (1,096) Other debt securities 10,579 (101) — — 10,579 (101) Totals $ 215,988 $ (11,128) $ 1,453,668 $ (206,586) $ 1,669,656 $ (217,714) 1 Comprised of 504 individual securities December 31, 2022 Less than 12 months 12 months or longer Total 1 (In thousands) Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury securities and obligations of U.S. government agencies $ 3,788 $ (328) $ 249 $ (11) $ 4,037 $ (339) Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 304,732 (33,401) 645,115 (162,870) 949,847 (196,271) Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 341,920 (21,555) 22,404 (5,257) 364,324 (26,812) Private mortgage-backed securities and collateralized mortgage obligations 130,488 (8,255) 25,234 (4,576) 155,722 (12,831) Collateralized loan obligations 242,370 (8,343) 60,534 (1,908) 302,904 (10,251) Obligations of state and political subdivisions 23,804 (1,656) 425 (75) 24,229 (1,731) Other debt securities 11,459 (427) — — 11,459 (427) Totals $ 1,058,561 $ (73,965) $ 753,961 $ (174,697) $ 1,812,522 $ (248,662) 1 Comprised of 420 individual securities At December 31, 2023, the Company had unrealized losses of $203.7 million on commercial and residential mortgage-backed securities and collateralized mortgage obligations issued by government-sponsored entities having a fair value of $1.2 billion. These securities are either explicitly or implicitly guaranteed by the U.S. government and have a long history of no credit losses. The implied government guarantee of principal and interest payments and the high credit rating of the portfolio provide sufficient basis for the current expectation that there is no risk of loss if default were to occur. Based on the assessment, the Company believes that the unrealized loss positions on these debt securities are a function of changes in investment spreads and interest rate movements and not changes in credit quality, and expects to recover the entire amortized cost basis of these securities. Therefore, at December 31, 2023, no allowance for credit losses has been recorded. At December 31, 2023, the Company had $10.9 million of unrealized losses on private label residential and commercial mortgage-backed securities and collateralized mortgage obligations having a fair value of $123.4 million. The securities have average credit support of 23%. Based on the evaluation of available information relevant to collectibility, the Company believes that the unrealized loss positions on these debt securities are a function of changes in investment spreads and interest rate movements and not changes in credit quality and expects to recover the entire amortized cost basis of these securities. Therefore, at December 31, 2023, no allowance for credit losses has been recorded. At December 31, 2023, the Company had $1.4 million of unrealized losses in floating rate collateralized loan obligations (“CLOs”) having a fair value of $292.6 million. CLOs are special purpose vehicles and those in which the Company has invested are nearly all first-lien, broadly syndicated corporate loans across a diversified band of industries while providing support to senior tranche investors. As of December 31, 2023, all positions held by the Company are in AAA and AA tranches, with average credit support of 35% and 26% respectively. The Company evaluates the securities for potential credit losses by modeling expected loan-level defaults, recoveries, and prepayments for each CLO security. Based on the evaluation of available information relevant to collectibility, the Company believes that the unrealized loss positions on these debt securities are a function of changes in investment spreads and interest rate movement and not changes in credit quality, and expects to recover the entire amortized cost basis of these securities. Therefore, at December 31, 2023, no allowance for credit losses has been recorded. At December 31, 2023, the Company had $1.1 million of unrealized losses on municipal securities having a fair value of $9.4 million. These securities are highly rated issuances of state or local municipalities, all of which are continuing to make timely contractual payments. Based on the evaluation of available information relevant to collectibility, the Company believes that the unrealized loss positions on these debt securities are a function of changes in investment spreads and interest rate movements and not changes in credit quality, and expects to recover the entire amortized cost basis of these securities. As a result, as of December 31, 2023, no allowance for credit losses has been recorded. All HTM debt securities are issued by government-sponsored entities, which are either explicitly or implicitly guaranteed by the U.S. government and have a long history of no credit losses. While the potential for default on these securities may be something greater than zero, the long history with no credit losses, the implied government guarantee of principal and interest payments and the high credit rating of the HTM portfolio provide sufficient basis for the current expectation that there is no risk of loss if default were to occur. As a result, as of December 31, 2023, no allowance for credit losses has been recorded. The Company has the intent and ability to hold these securities until maturity. Included in Other Assets at December 31, 2023, is $67.7 million of Federal Home Loan Bank and Federal Reserve Bank stock stated at par value. The Company has not identified events or changes in circumstances which may have a significant adverse effect on the fair value of these cost method investment securities. Accrued interest receivable on AFS and HTM debt securities of $7.9 million and $1.1 million, respectively, at December 31, 2023, and $7.0 million and $1.3 million, respectively, at December 31, 2022, is included in Other Assets At December 31, 2023, the Company held 11,330 shares of Visa Class B stock. The ownership of Visa stock was related to prior ownership in Visa's network while Visa operated as a cooperative, and was recorded on the Company's financial records at a zero basis. In January of 2024, the Company sold all of its Visa Class B stock, receiving net proceeds of $4.1 million.

Loans

Loans	12 Months Ended
	Dec. 31, 2023
Receivables [Abstract]
Loans	Loans Loans held for investment are categorized into the following segments: • Construction and land development: Loans are extended to both commercial and consumer customers which are collateralized by and for the purpose of funding land development and construction projects, including 1-4 family residential construction, multi-family property and non-farm residential property where the primary source of repayment is from proceeds of the sale, refinancing or permanent financing of the property. • Commercial real estate - owner-occupied: Loans are extended to commercial customers for the purpose of acquiring real estate to be occupied by the borrower's business. These loans are collateralized by the subject property and the repayment of these loans is largely dependent on the performance of the company occupying the property. • Commercial real estate - non owner-occupied: Loans are extended to commercial customers for the purpose of acquiring commercial property where occupancy by the borrower is not their primary intent. These loans are viewed primarily as cash flow loans, collateralized by the subject property, and the repayment of these loans is largely dependent on rental income from the successful operation of the property. • Residential real estate: Loans are extended to consumer customers and collateralized primarily by 1-4 family residential properties and include fixed and variable rate mortgages, home equity mortgages, and home equity lines of credit. Loans are primarily written based on conventional loan agency guidelines, including loans that exceed agency value limitations. Sources of repayment are largely dependent on the occupant of the residential property. • Commercial and financial: Loans are extended to commercial customers. The purpose of the loans can be working capital, physical asset expansion, asset acquisition or other business purposes. Loans may be collateralized by assets owned by the borrower or the borrower's business. Commercial loans are based primarily on the historical and projected cash flow of the borrower's business and secondarily on the capacity of credit enhancements, guarantees and underlying collateral provided by the borrower. • Consumer: Loans are extended to consumer customers. The segment includes both installment loans and lines of credit which may be collateralized or non-collateralized. The following tables present net loan balances by segment as of: December 31, 2023 (In thousands) Portfolio Loans Acquired Non-PCD Loans PCD Loans Total Construction and land development $ 519,426 $ 247,654 $ 542 $ 767,622 Commercial real estate - owner occupied 1,079,633 552,627 38,021 1,670,281 Commercial real estate - non-owner occupied 1,844,588 1,323,222 152,080 3,319,890 Residential real estate 1,714,748 710,129 20,815 2,445,692 Commercial and financial 1,237,090 318,683 52,115 1,607,888 Consumer 175,969 74,854 744 251,567 Totals $ 6,571,454 $ 3,227,169 $ 264,317 $ 10,062,940 December 31, 2022 (In thousands) Portfolio Loans Acquired Non-PCD Loans PCD Loans Total Construction and land development $ 364,900 $ 201,333 $ 21,100 $ 587,332 Commercial real estate - owner occupied 995,154 451,202 31,946 1,478,302 Commercial real estate - non-owner occupied 1,695,411 767,138 127,225 2,589,774 Residential real estate 1,558,643 271,378 19,482 1,849,503 Commercial and financial 1,152,747 185,240 15,238 1,353,225 Consumer 177,338 89,458 19,791 286,587 Totals $ 5,944,193 $ 1,965,749 $ 234,782 $ 8,144,724 The amortized cost basis of loans at December 31, 2023 and 2022 included net deferred costs of $43.1 million and $35.1 million, respectively. At December 31, 2023, the remaining fair value adjustments on acquired loans were $174.0 million, or 4.8% of the outstanding acquired loan balances, compared to $97.7 million, or 4.3% of the acquired loan balances at December 31, 2022. The discount is accreted into interest income over the remaining lives of the related loans on a level yield basis. Accrued interest receivable is included within Other Assets and was $39.4 million and $28.2 million at December 31, 2023 and 2022, respectively. Loans to directors and executive officers totaled $0.3 million and $0.4 million at December 31, 2023 and 2022, respectively. No new loans were originated to officers or directors in 2023. The following table presents the status of net loan balances as of December 31, 2023 and December 31, 2022. December 31, 2023 (In thousands) Current Accruing Accruing Accruing Nonaccrual Total Portfolio Loans Construction and land development $ 519,383 $ 19 $ — $ — $ 24 $ 519,426 Commercial real estate - owner occupied 1,078,732 — — — 901 1,079,633 Commercial real estate - non-owner occupied 1,840,485 $ 685 — — 3,418 1,844,588 Residential real estate 1,701,862 4,373 1,515 169 6,829 1,714,748 Commercial and financial 1,221,941 1,372 145 50 13,582 1,237,090 Consumer 174,798 763 290 — 118 175,969 Total Portfolio Loans $ 6,537,201 $ 7,212 $ 1,950 $ 219 $ 24,872 $ 6,571,454 Acquired Non-PCD Loans Construction and land development $ 245,674 $ 891 $ 289 $ — $ 800 $ 247,654 Commercial real estate - owner occupied 545,374 1,691 133 — 5,429 552,627 Commercial real estate - non-owner occupied 1,310,100 11,577 — — 1,545 1,323,222 Residential real estate 704,417 2,586 888 153 2,085 710,129 Commercial and financial 315,229 50 36 35 3,333 318,683 Consumer 71,986 568 618 618 1,064 74,854 Total Acquired Non-PCD Loans $ 3,192,780 $ 17,363 $ 1,964 $ 806 $ 14,256 $ 3,227,169 PCD Loans Construction and land development $ 442 $ 100 $ — $ — $ — $ 542 Commercial real estate - owner occupied 34,667 — — — 3,354 38,021 Commercial real estate - non-owner occupied 148,308 — — — 3,772 152,080 Residential real estate 18,923 497 169 154 1,072 20,815 Commercial and financial 34,337 — — — 17,778 52,115 Consumer 651 85 8 — — 744 Total PCD Loans $ 237,328 $ 682 $ 177 $ 154 $ 25,976 $ 264,317 Total Loans $ 9,967,309 $ 25,257 $ 4,091 $ 1,179 $ 65,104 $ 10,062,940 December 31, 2022 (In thousands) Current Accruing Accruing Accruing Nonaccrual Total Portfolio Loans Construction and land development $ 364,841 $ — $ — $ — $ 59 $ 364,900 Commercial real estate - owner occupied 993,690 — 67 440 957 995,154 Commercial real estate - non-owner occupied 1,695,381 — — — 30 1,695,411 Residential real estate 1,550,040 1,172 147 — 7,284 1,558,643 Commercial and financial 1,143,635 1,065 476 342 7,229 1,152,747 Consumer 176,444 550 252 1 91 177,338 Total Portfolio Loans $ 5,924,031 $ 2,787 $ 942 $ 783 $ 15,650 $ 5,944,193 Acquired Non-PCD Loans Construction and land development $ 201,263 $ — $ — $ — $ 70 $ 201,333 Commercial real estate - owner occupied 450,109 796 297 — — 451,202 Commercial real estate - non-owner occupied 765,633 162 — — 1,343 767,138 Residential real estate 270,215 577 — — 586 271,378 Commercial and financial 183,953 790 87 — 410 185,240 Consumer 87,317 779 616 525 221 89,458 Total Acquired Non-PCD Loans $ 1,958,490 $ 3,104 $ 1,000 $ 525 $ 2,630 $ 1,965,749 PCD Loans Construction and land development $ 20,680 $ — $ — $ — $ 420 $ 21,100 Commercial real estate - owner occupied 30,517 23 23 — 1,383 31,946 Commercial real estate - non-owner occupied 124,115 — — — 3,110 127,225 Residential real estate 17,885 10 — — 1,587 19,482 Commercial and financial 11,201 4 — — 4,033 15,238 Consumer 17,884 1,001 336 540 30 19,791 Total PCD Loans $ 222,282 $ 1,038 $ 359 $ 540 $ 10,563 $ 234,782 Total Loans $ 8,104,803 $ 6,929 $ 2,301 $ 1,848 $ 28,843 $ 8,144,724 All interest accrued but not received for loans placed on nonaccrual is reversed against interest income. Interest subsequently received on such loans is accounted for under the cost-recovery method, whereby interest income is not recognized until the loan balance is reduced to zero. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current, and future payments are reasonably assured. The Company recognized $0.5 million, $1.6 million, and $1.2 million in interest income on nonaccrual loans during the years ended December 31, 2023, 2022, and 2021, respectively. The following tables present net balances of loans on nonaccrual status and the related allowance for credit losses, if any, as of: December 31, 2023 (In thousands) Nonaccrual Loans With No Related Allowance Nonaccrual Loans With an Allowance Total Nonaccrual Loans Construction and land development $ — $ 824 $ 824 Commercial real estate - owner-occupied 4,859 4,825 9,684 Commercial real estate - non-owner occupied 3,938 4,797 8,735 Residential real estate 1,792 8,194 9,986 Commercial and financial 4,868 29,825 34,693 Consumer — 1,182 1,182 Totals $ 15,457 $ 49,647 $ 65,104 December 31, 2022 (In thousands) Nonaccrual Loans With No Related Allowance Nonaccrual Loans With an Allowance Total Nonaccrual Loans Construction and land development $ 615 $ — $ 615 Commercial real estate - owner-occupied 957 1,641 2,597 Commercial real estate - non-owner occupied 3,347 837 4,184 Residential real estate 8,072 1,036 9,109 Commercial and financial 4,724 6,891 11,615 Consumer 40 683 723 Totals $ 17,755 $ 11,088 $ 28,843 Credit Quality Evaluation The Company utilizes an internal asset classification system as a means of identifying problem and potential problem loans. The following classifications are used to categorize loans under the internal classification system: • Pass: Loans that are not problem loans or potential problem loans are considered to be pass-rated. • Special Mention: Loans that do not currently expose the Company to sufficient risk to warrant classification in the Substandard or Doubtful categories, but possess weaknesses that deserve management’s close attention are deemed to be Special Mention. • Substandard: Loans with the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. • Substandard Impaired: Loans typically placed on nonaccrual and considered to be collateral-dependent. • Doubtful: Loans that have all the weaknesses inherent in those classified Substandard with the added characteristic that the weakness present makes collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The principal balance of loans classified as doubtful is likely to be charged off. The following tables present the risk rating of loans and gross charge-offs by year of origination as of: December 31, 2023 (In thousands) 2023 2022 2021 2020 2019 Prior Revolving Total Construction and Land Development Risk Ratings: Pass $ 80,750 $ 295,043 $ 107,158 $ 20,199 $ 21,942 $ 28,902 $ 210,716 $ 764,710 Special Mention — 1,407 — — — 393 289 2,089 Substandard — — — — — 499 324 823 Substandard Impaired — — — — — — — — Doubtful — — — — — — — — Total $ 80,750 $ 296,450 $ 107,158 $ 20,199 $ 21,942 $ 29,794 $ 211,329 $ 767,622 Gross Charge-Offs $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate - owner occupied Risk Ratings: Pass $ 145,642 $ 272,384 $ 281,870 $ 165,475 $ 171,897 $ 551,177 $ 36,952 $ 1,625,397 Special Mention — 159 1,335 — 524 9,122 1 11,141 Substandard — 5,176 1,041 6,342 7,113 4,387 — 24,059 Substandard Impaired — 848 16 649 3 8,104 64 9,684 Doubtful — — — — — — — — Total $ 145,642 $ 278,567 $ 284,262 $ 172,466 $ 179,537 $ 572,790 $ 37,017 $ 1,670,281 Gross Charge-Offs $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate - non-owner occupied Risk Ratings: Pass $ 234,226 $ 784,525 $ 657,499 $ 288,747 $ 397,031 $ 841,062 $ 25,954 $ 3,229,044 Special Mention — 29,381 2,092 2,964 — 12,120 — 46,557 Substandard — 685 8,723 8,332 8,578 8,985 250 35,553 Substandard Impaired — — — 1,066 1,849 5,821 — 8,736 Doubtful — — — — — — — — Total $ 234,226 $ 814,591 $ 668,314 $ 301,109 $ 407,458 $ 867,988 $ 26,204 $ 3,319,890 Gross Charge-Offs $ — $ — $ 11 $ — $ — $ — $ 109 $ 120 Residential real estate Risk Ratings: Pass 177,000 450,366 649,086 160,889 95,288 413,719 479,047 2,425,395 Special Mention 208 — — — 58 482 4,004 4,752 Substandard — — — — — — 1,824 1,824 Substandard Impaired 95 — 919 123 314 8,960 3,310 13,721 Doubtful — — — — — — — — Total $ 177,303 $ 450,366 $ 650,005 $ 161,012 $ 95,660 $ 423,161 $ 488,185 $ 2,445,692 Gross Charge-Offs $ — $ — $ — $ 44 $ — $ 159 $ 153 $ 356 December 31, 2023 (In thousands) 2023 2022 2021 2020 2019 Prior Revolving Total Commercial and financial Risk Ratings: Pass $ 315,560 $ 336,071 $ 333,113 $ 127,069 $ 66,165 $ 89,002 $ 269,108 $ 1,536,088 Special Mention 136 2,167 1,064 1,005 503 1,103 2,191 8,169 Substandard — 9,136 10,810 804 1,002 3,340 3,847 28,939 Substandard Impaired — 9,422 10,833 576 4,887 8,502 114 34,334 Doubtful — — — — — 358 — 358 Total $ 315,696 $ 356,796 $ 355,820 $ 129,454 $ 72,557 $ 102,305 $ 275,260 $ 1,607,888 Gross Charge-Offs $ 1,198 $ 117 $ 659 $ 3,007 $ 582 $ 12,584 $ 418 $ 18,565 Consumer Risk Ratings: Pass 20,557 66,699 45,534 19,747 20,300 19,080 56,473 248,390 Special Mention 5 334 279 77 5 194 65 959 Substandard — — — — — — — — Substandard Impaired 66 930 891 103 51 177 — 2,218 Doubtful — — — — — — — — Total $ 20,628 $ 67,963 $ 46,704 $ 19,927 $ 20,356 $ 19,451 $ 56,538 $ 251,567 Gross Charge-Offs $ 74 $ 1,910 $ 2,218 $ 362 $ 263 $ 666 $ 261 $ 5,754 Consolidated Total $ 974,245 $ 2,264,733 $ 2,112,263 $ 804,167 $ 797,510 $ 2,015,489 $ 1,094,533 $ 10,062,940 Gross Charge-Offs $ 1,272 $ 2,027 $ 2,888 $ 3,413 $ 845 $ 13,409 $ 941 $ 24,795 December 31, 2022 (In thousands) 2022 2021 2020 2019 2018 Prior Revolving Total Construction and Land Development Risk Ratings: Pass $ 223,204 $ 209,738 $ 18,239 $ 24,600 $ 12,783 $ 19,022 $ 50,960 $ 558,546 Special Mention 14,523 452 — 3,153 — — 15 18,143 Substandard — 9,227 — — 959 — — 10,186 Substandard Impaired — 52 — — — 405 — 457 Doubtful — — — — — — — — Total $ 237,727 $ 219,469 $ 18,239 $ 27,753 $ 13,742 $ 19,427 $ 50,975 $ 587,332 Commercial real estate - owner occupied Risk Ratings: Pass $ 215,453 $ 251,638 $ 180,081 $ 185,286 $ 121,568 $ 467,963 $ 32,253 $ 1,454,242 Special Mention 694 — 2,363 4,403 2,548 2,869 — 12,877 Substandard — — 667 2,625 573 4,444 — 8,309 Substandard Impaired — — — 311 294 2,269 — 2,874 Doubtful — — — — — — — — Total $ 216,147 $ 251,638 $ 183,111 $ 192,625 $ 124,983 $ 477,545 $ 32,253 $ 1,478,302 Commercial real estate - non-owner occupied Risk Ratings: Pass $ 593,364 $ 530,462 $ 231,693 $ 331,173 $ 228,077 $ 575,656 $ 35,326 $ 2,525,751 Special Mention — 16,257 735 5,438 — 4,975 — 27,405 Substandard — 192 19,315 — 5,515 7,412 — 32,434 Substandard Impaired — — 1,044 1,849 30 1,261 — 4,184 Doubtful — — — — — — — — Total $ 593,364 $ 546,911 $ 252,787 $ 338,460 $ 233,622 $ 589,304 $ 35,326 $ 2,589,774 Residential real estate Risk Ratings: Pass $ 270,054 $ 552,950 $ 121,879 $ 77,100 $ 97,900 $ 292,867 $ 423,764 $ 1,836,514 Special Mention — — 50 — 25 269 884 1,228 Substandard — — — — — 343 85 428 Substandard Impaired — — 133 32 83 9,515 1,570 11,333 Doubtful — — — — — — — — Total $ 270,054 $ 552,950 $ 122,062 $ 77,132 $ 98,008 $ 302,994 $ 426,303 $ 1,849,503 Commercial and financial Risk Ratings: Pass $ 359,833 $ 323,014 $ 142,332 $ 77,562 $ 57,924 $ 58,648 $ 292,818 $ 1,312,131 Special Mention 1,244 423 106 474 195 259 2,998 5,699 Substandard — 67 942 6,304 1,603 1,683 13,114 23,713 Substandard Impaired 5 58 5,109 147 3,642 2,545 176 11,682 Doubtful — — — — — — — — Total $ 361,082 $ 323,562 $ 148,489 $ 84,487 $ 63,364 $ 63,135 $ 309,106 $ 1,353,225 Consumer Risk Ratings: Pass $ 93,012 $ 77,889 $ 27,982 $ 28,772 $ 11,690 $ 16,480 $ 29,725 $ 285,550 Special Mention — — — 250 2 134 30 416 Substandard — — 11 — — 191 — 202 Substandard Impaired — — 18 55 36 103 207 419 Doubtful — — — — — — — — Total $ 93,012 $ 77,889 $ 28,011 $ 29,077 $ 11,728 $ 16,908 $ 29,962 $ 286,587 Consolidated Total $ 1,771,386 $ 1,972,420 $ 752,699 $ 749,534 $ 545,447 $ 1,469,313 $ 883,925 $ 8,144,724 Troubled Borrower Modifications The following table presents the amortized cost of troubled borrower modification (TBM) loans that were modified during the year ended December 31, 2023. December 31, 2023 (In thousands) Term Extension and/or Payment Delay 1 % of Total Class of Loans Residential real estate 818 0.03 % Commercial and financial 12,711 0.79 % Consumer 3,988 1.59 % Totals $ 17,517 0.17 % 1 At December 31, 2023, there were no unfunded lending related commitments associated with TBMs. December 31, 2023 (In thousands) Current Accruing Accruing Accruing Nonaccrual Total Residential real estate 596 — — — 222 818 Commercial and financial 244 — — — 12,467 12,711 Consumer 3,166 211 156 143 312 3,988 Totals $ 4,006 $ 211 $ 156 $ 143 $ 13,001 $ 17,517

Allowance for Credit Losses

Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2023
Receivables [Abstract]
Allowance for Credit Losses	Allowance for Credit Losses Activity in the allowance for credit losses is summarized as follows: For the Year Ended December 31, 2023 (In thousands) Beginning Initial Allowance on PCD Loans Acquired During the Period Provision Charge- Recoveries Ending Construction and land development $ 6,464 $ 5 $ 2,160 $ — $ 8 $ 8,637 Commercial real estate - owner occupied 6,051 139 (663) — 2 5,529 Commercial real estate - non-owner occupied 43,258 647 4,315 (120) 188 48,288 Residential real estate 29,605 400 8,858 (356) 509 39,016 Commercial and financial 15,648 17,527 17,644 (18,565) 2,089 34,343 Consumer 12,869 161 5,204 (5,754) 638 13,118 Total $ 113,895 $ 18,879 $ 37,518 $ (24,795) $ 3,434 $ 148,931 For the Year Ended December 31, 2022 (In thousands) Beginning Initial Allowance on PCD Loans Acquired During the Period Provision Charge- Recoveries TDR Ending Construction and land development $ 2,751 $ 518 $ 3,127 $ — $ 68 $ — $ 6,464 Commercial real estate - owner occupied 8,579 38 (2,566) — — — 6,051 Commercial real estate - non-owner occupied 36,617 880 5,871 (179) 69 — 43,258 Residential real estate 12,811 229 16,284 (84) 393 (28) 29,605 Commercial and financial 19,744 1,699 (5,367) (1,233) 807 (2) 15,648 Consumer 2,813 1,911 8,834 (1,415) 733 (7) 12,869 Total $ 83,315 $ 5,275 $ 26,183 $ (2,911) $ 2,070 $ (37) $ 113,895 For the Year Ended December 31, 2021 (In thousands) Beginning Initial Allowance on PCD Loans Acquired During the Period Provision Charge- Recoveries TDR Ending Construction and land development $ 4,920 $ — $ (2,300) $ — $ 133 $ (2) $ 2,751 Commercial real estate - owner occupied 9,868 — (1,289) — — — 8,579 Commercial real estate - non-owner occupied 38,266 1,327 (1,664) (1,327) 15 — 36,617 Residential real estate 17,500 — (5,822) (57) 1,196 (6) 12,811 Commercial and financial 18,690 1,719 2,292 (3,987) 1,030 — 19,744 Consumer 3,489 — (638) (727) 697 (8) 2,813 Total $ 92,733 $ 3,046 $ (9,421) $ (6,098) $ 3,071 $ (16) $ 83,315 As of December 31, 2023 and 2022, the Company utilized a blend of Moody’s most recent “U.S. Macroeconomic Outlook Baseline” and “Alternative Scenario 3 - Downside - 90th Percentile” scenarios and considered the uncertainty associated with the assumptions in both scenarios, including for the 2023 analysis, the actions taken by the FRB with regard to monetary policy and interest rates and the potential impact of those actions, the conflicts in the Middle East and Russia-Ukraine and the magnitude of the resulting market disruption, and the potential impact of persistent high inflation on economic growth. Outcomes in any or all of these factors could differ from the scenarios identified above, and the Company incorporated qualitative considerations reflecting the risk of uncertain economic conditions, and for additional dimensions of risk that may not be captured in the quantitative model. The following section discusses changes in the level of the allowance for credit losses for the year ended December 31, 2023. In the Construction and Land Development segment, the increase in the allowance is primarily due to an increase in loan balances. In this segment, the primary source of repayment is typically from proceeds of the sale, refinancing, or permanent financing of the underlying property; therefore, industry and collateral type and estimated collateral values are among the relevant factors in assessing expected losses. In the Commercial Real Estate - Owner-Occupied segment, the allowance decreased from the prior year due to changes in loan mix and slight improvements in the forecast for macroeconomic factors. Risk characteristics include but are not limited to, collateral type, note structure, and loan seasoning. In the Commercial Real Estate - Non Owner-Occupied segment, the increase in the allowance reflects higher loan balances and an increase in reserves for individually evaluated loans, partially offset by a decrease in expected losses due to improvements in the forecast for macroeconomic factors. Repayment is often dependent upon rental income from the operation of the underlying property. Loan performance may be adversely affected by general economic conditions or conditions specific to the real estate market, including property types. Collateral type, note structure, and loan seasoning are among the risk characteristics analyzed for this segment. The Residential Real Estate segment includes first mortgages secured by residential property, and home equity lines of credit. The increase in the allowance reflects higher loan balances. Risk characteristics considered for this segment include, but are not limited to, borrower FICO score, lien position, loan to value ratios, and loan seasoning. In the Commercial and Financial segment, borrowers are primarily small to medium sized professional firms and other businesses, and loans are generally supported by projected cash flows of the business, collateralized by business assets, and/or guaranteed by the business owners. The increase in reserves is due to an increase in loan balances, both through acquisition and organic loan growth, combined with an increase in expected losses on commercial and industrial unsecured loans. Charge-offs for this segment include the charge-off of an $11.3 million acquired PCD loan that was fully reserved. Industry, collateral type, estimated collateral values and loan seasoning are among the relevant factors in assessing expected losses.

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives Back-to-Back Swaps The Company offers interest rate swaps when requested by customers to allow them to hedge the risk of rising interest rates on their variable rate loans. Upon entering into these swaps, the Company enters into offsetting positions with counterparties in order to minimize the interest rate risk. These back-to-back swaps are freestanding financial derivatives with the fair values reported in Other Assets and Other Liabilities. The Company is party to master netting arrangements with its financial institution counterparties; however, the Company does not offset assets and liabilities under the arrangements for financial statement presentation purposes. Gains and losses on these back-to-back swaps, which offset, are recorded through noninterest income. Interest Rate Floors Designated as Cash Flow Hedges The Company entered into interest rate floor contracts to mitigate exposure to the variability of future cash flows due to changes in interest rates on certain segments of its variable-rate loans, which matured in the fourth quarter of 2023. The Company considered these derivatives to be highly effective at achieving offsetting changes in cash flows attributable to changes in interest rates and had designated them as cash flow hedges. Therefore, changes in the fair value of these derivative instruments were recognized in other comprehensive income. Amortization of the premium paid on cash flow hedges is recognized in earnings over the term of the hedge in the same caption as the hedged item. For the year ended December 31, 2023, the Company recognized a nominal amount through other comprehensive income and reclassified $0.5 million out of accumulated other comprehensive income into interest income. For the year ended December 31, 2022, the Company recognized $0.3 million through other comprehensive income and reclassified $0.4 million, respectively, out of accumulated other comprehensive income into interest income. Interest Rate Swaps Designated as Fair Value Hedges The Company entered into interest rate swap contracts to hedge the risk of changes in fair value of the AFS portfolio due to changes in the Secured Overnight Financing Rate ("SOFR"). The Company considers these derivatives to be highly effective at offsetting changes in interest rates and will assess the effectiveness on a quarterly basis. The changes in interest rates affecting the fair value of these derivative contracts are recognized in other comprehensive income. These derivative instruments are primarily for risk management purposes. For the year ended December 31, 2023, the Company recognized gains through other comprehensive income of $2.6 million and reclassified gains of $35 thousand, out of accumulated other comprehensive income into interest income. The Company entered into interest rate swap contracts to hedge the risk of changes in the fair value of a pool of residential mortgages due to changes in SOFR. These fair values hedges utilize the portfolio layer method. The Company considers these derivatives to be highly effective at offsetting changes in interest rates and will assess the effectiveness on a quarterly basis. The changes in interest rates affecting the fair value of these derivative contracts are recognized in interest income. These derivative instruments are primarily for risk management purposes. For the year ended December 31, 2023, the Company recognized gains through interest income of $16 thousand. (In thousands) Notional Amount Fair Value Balance Sheet Category December 31, 2023 Back-to-back swaps 1 $ 605,735 $ 28,804 Other Assets and Other Liabilities Securities fair value hedges 400,000 2,677 Other Assets Residential mortgage fair value hedges 200,000 75 Other Liabilities December 31, 2022 Back-to-back swaps 1 $ 312,808 $ 23,140 Other Assets and Other Liabilities Interest rate floors 300,000 2 Other Assets 1 Back-to-back swaps include risk participation agreements with notional amounts of $9.4 million and nominal fair value. The following table presents amounts recorded on the Consolidated Balance Sheet related to cumulative basis adjustments for fair value hedges. Carrying amount of the hedged items at December 31, Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged items at December 31, (In thousands) 2023 2022 2023 2022 Securities available-for-sale 1 $ 584,108 $ — $ 2,643 $ — Loans, net 2 633,693 — 44 — 1 At December 31, 2023, and December 31, 2022, the amortized cost basis and unallocated basis adjustments used in hedging relationships was $680.6 million and $0, respectively. Refer to Note 3 for a reconciliation of the amortized cost and fair value of available-for-sale securities. 2 These amounts represent the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the stated amount of assets in the closed portfolios a nticipated to be outstanding for the designated hedge period. At December 31, 2023, and December 31, 2022, the portfolio layer method was $200 million an d $0, respectively, of which $200 million and $0, respectively, was designated as hedged..

Bank Premises and Equipment

Bank Premises and Equipment	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Bank Premises and Equipment	Bank Premises and Equipment Bank premises and equipment consisted of the following: (In thousands) Cost Accumulated Net December 31, 2023 Premises (including land of $35,588) $ 138,773 $ (36,500) $ 102,273 Furniture and equipment 42,507 (31,476) 11,031 Total $ 181,280 $ (67,976) $ 113,304 December 31, 2022 Premises (including land of $37,516) $ 138,447 $ (33,037) $ 105,410 Furniture and equipment 40,354 (28,872) 11,482 Total $ 178,801 $ (61,909) $ 116,892

Goodwill and Acquired Intangibl

Goodwill and Acquired Intangible Assets	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Acquired Intangible Assets	Goodwill and Acquired Intangible Assets The following table presents changes in the carrying amount of goodwill: For the Year Ended December 31, (In thousands) 2023 2022 2021 Beginning of year $ 480,319 $ 252,154 $ 221,176 Changes from business combinations 252,098 228,165 30,978 Total $ 732,417 $ 480,319 $ 252,154 The Company performs an analysis for goodwill impairment annually in the fourth quarter or more frequently as considered necessary. The Company performed a qualitative goodwill assessment in the fourth quarter of 2023, and concluded that a quantitative goodwill impairment test was not necessary as it was not more likely-than-not that the fair value of the Company’s reporting unit was below the carrying amount. Based on the analyses performed, the Company concluded that goodwill was not impaired during the periods presented. Acquired intangible assets primarily consist of core deposit intangibles (“CDI”), which are intangible assets arising from the purchase of deposits separately or from bank acquisitions. The change in balance for CDI is as follows: For the Year Ended December 31, (In thousands) 2023 2022 2021 Beginning of year $ 71,285 $ 12,998 $ 14,577 Acquired CDI, including measurement period adjustments 49,143 67,388 3,454 Amortization expense (28,726) (9,101) (5,033) End of year $ 91,702 $ 71,285 $ 12,998 The gross carrying amount and accumulated amortization of the Company's CDI subject to amortization as of: December 31, 2023 December 31, 2022 (In thousands) Gross Accumulated Gross Accumulated Core deposit intangible $ 135,212 $ (43,511) $ 97,778 $ (26,493) The annual amortization expense for the Company's CDI for each of the five years subsequent to December 31, 2023 is $23.6 million, $19.9 million, $16.4 million, $13.0 million and $9.3 million, respectively. Certain customer relationships were acquired in 2022 through the acquisition of Drummond and its insurance agency subsidiary. The gross carrying amount assigned to these relationships as of December 31, 2023 is $2.6 million and the accumulated amortization is $0.3 million. The intangible asset is being amortized on a straight line basis over 10 years.

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Borrowings	Borrowings A significant portion of the Company's short-term borrowings were comprised of securities sold under agreements to repurchase with overnight maturities: For the Year Ended December 31, (In thousands) 2023 2022 Maximum amount outstanding at any month end $ 374,573 $ 172,029 Weighted average interest rate at end of year 3.48 % 1.89 % Average amount outstanding $ 270,999 $ 121,318 Weighted average interest rate during the year 3.07 % 0.81 % Securities sold under agreements to repurchase are accounted for as secured borrowings. For securities sold under agreements to repurchase, the Company would be obligated to provide additional collateral in the event of a significant decline in fair value of collateral pledged. Company securities pledged were as follows by collateral type and maturity as of: December 31, (In thousands) 2023 2022 Fair value of pledged securities - overnight and continuous: Mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 396,378 $ 184,967 At December 31, 2023, the Company had available secured lines of credit totaling $4.5 billion, inclusive of lendable collateral of $2.8 billion and $1.7 billion at the Federal Reserve and the Federal Home Loan Bank ("FHLB"), respectively. Of the $1.7 billion at the FHLB, $50.0 million was outstanding at December 31, 2023. During 2023, the average interest rate on FHLB borrowings was 3.64% and the weighted average interest rate on balances outstanding at December 31, 2023 was 3.23%. The following table summarizes the Company's junior subordinated trust preferred debentures and related common equity securities as of December 31, 2023: (In thousands) Description Issuance Date Acquisition Date 1 Maturity Date Junior Subordinated Debt Trust Preferred Securities Common Equity Securities Contractual Interest Rate Interest Rate at December 31, 2023 SBCF Capital Trust I 3/31/2005 n/a 3/31/2035 $ 20,619 $ 20,000 $ 619 3 month SOFR +533bps 7.34% SBCF Statutory Trust II 12/16/2005 n/a 12/16/2035 20,619 20,000 619 3 month SOFR +538bps 6.98% SBCF Statutory Trust III 6/29/2007 n/a 6/15/2037 12,372 12,000 372 3 month SOFR +538bps 7.00% The BANKshares, Inc. Statutory Trust I 12/19/2002 10/1/2014 12/26/2032 5,155 5,000 155 3 month SOFR +325bps 8.87% The BANKshares, Inc. Statutory Trust II 3/17/2004 10/1/2014 3/17/2034 4,124 4,000 124 3 month SOFR +279bps 8.43% The BANKshares, Inc. Capital Trust I 12/15/2005 10/1/2014 12/15/2035 5,155 5,000 155 3 month SOFR +538bps 7.03% Grand Bank Capital Trust I 10/29/2004 7/17/2015 10/29/2034 7,217 7,000 217 3 month SOFR +198bps 7.57% $ 75,261 $ 73,000 $ 2,261 1 Acquired junior subordinated debentures were recorded at their acquisition date fair values, which collectively was $5.6 million lower than face value; this amount is being amortized into interest expense over the remaining term to maturity. Interest on the trust preferred securities is calculated on the basis of 3-month SOFR plus spread and is re-set quarterly. The trust preferred securities may be redeemed without penalty, upon approval of the FRB or upon occurrence of certain events affecting their tax or regulatory capital treatment. The proceeds of the offering of trust preferred securities and common equity securities were used by SBCF Capital Trust I and SBCF Statutory Trust II to purchase the $41.2 million junior subordinated deferrable interest notes issued by the Company, and by SBCF Statutory Trust III to purchase the $12.4 million junior subordinated deferrable interest notes issued by the Company, all of which have terms substantially similar to the trust preferred securities. The Company has the right to defer payments of interest on the notes at any time or from time to time at the Company's election. Interest can be deferred for a period not longer than five years. If the Company elects to defer interest, it may not, with certain exceptions, declare or pay any dividends or distributions on its capital stock or purchase or acquire any of its capital stock. As of December 31, 2023, 2022 and 2021, all interest payments on trust preferred securities were current. Distributions on the trust preferred securities are payable quarterly. The Company has entered into agreements to guarantee the payments of distributions on the trust preferred securities and payments of redemption of the trust preferred securities. Under these agreements, the Company also agrees, on a subordinated basis, to pay expenses and liabilities of the Trusts other than those arising under the trust preferred securities. The obligations of the Company under the junior subordinated notes, the trust agreement establishing the Trusts, the guarantees and agreements as to expenses and liabilities, in aggregate, constitute a full and conditional guarantee by the Company of the Trusts' obligations under the trust preferred securities. In 2022, the Company obtained $12.3 million in senior notes through the acquisition of Apollo. Contractual interest is paid on a semiannual basis at a fixed rate of 5.50% until April 30, 2025, at which point the rate converts to a floating rate of 3-month SOFR plus 533 basis points. The debt was recorded at fair value, resulting in a $0.4 million premium that is being amortized into interest expense over the remaining term to maturity. In 2023, the Company acquired $25.0 million in subordinated debt through the acquisition of Professional. Contractual interest is paid on a semiannual basis at a fixed interest rate of 3.375% until January 30, 2027, at which point the rate converts to a 3-month SOFR rate plus 203 basis points paid quarterly. The debt was recorded at fair value, resulting in a $3.9 million discount that is being accreted into interest expense over the remaining term to maturity.

Employee Benefits and Stock Com

Employee Benefits and Stock Compensation	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Employee Benefits and Stock Compensation	Employee Benefits and Stock Compensation The Company’s defined contribution plan covers substantially all employees after one year of service and includes a matching benefit for employees who can elect to defer a portion of their compensation. In addition, amounts of compensation contributed by employees are matched on a percentage basis under the plan. The Company's contributions to this plan charged to expense were $4.8 million in 2023, $3.5 million in 2022, and $3.1 million in 2021. The Company, through its Compensation and Governance Committee of the board of directors (the “Compensation Committee”), offers equity compensation to employees and non-employee directors of Seacoast and Seacoast Bank in the form of various share-based awards, including stock options, restricted stock awards (“RSAs”), or restricted stock units (“RSUs”). The awards may vest over time, have certain performance based criteria, or both. Stock options are granted with an exercise price at least equal to the market price of the Company’s stock at the date of grant. The fair value of options granted is estimated on the date of grant using the Black-Scholes option-pricing model. Compensation cost is amortized on a straight-line basis over the vesting period. Vesting is determined by the Compensation Committee at the time of grant, generally over five years. The options have a maximum term of ten years. The fair value of RSAs and RSUs are estimated based on the price of the Company’s common stock on the date of grant. Compensation cost is measured straight-line for RSAs and ratably for RSUs over the vesting period of the awards and reversed for awards that are forfeited due to unfulfilled service or performance criteria. To the extent the Company has treasury shares available, stock options exercised or stock grants awarded may be issued from treasury shares. If treasury shares are insufficient, the Company can issue new shares. Vesting of share-based awards is immediately accelerated on death or disability of the recipient. The Compensation Committee may, at its discretion, accelerate vesting upon retirement or upon the event of a change-in-control. Awards are currently granted under the Seacoast 2021 Incentive Plan (“2021 Plan”), with 3,750,000 authorized shares for issuance, plus shares of underlying awards outstanding under the 2013 Incentive Plan (the “Prior Plan”) that thereafter terminate or expire unexercised or are cancelled, forfeited or lapse for any reason under the Prior Plan. In 2021, as part of the Legacy Bank acquisition, 356,497 options were granted to replace outstanding Legacy Bank options. These options had a weighted average exercise price of $16.70 and were fully vested upon acquisition. The value of the replacement awards associated with pre-combination service, $4.7 million, was considered purchase consideration, and the value of the replacement awards associated with post-combination service, $0.9 million, was recognized as compensation expense in 2021. In 2022, as part of the acquisitions of BBFC, Sabal Palm and Apollo, 52,432, 188,253 and 274,373 options, respectively, were granted to replace outstanding options. These options had weighted average exercise prices of $26.63, $17.84 and $9.94, respectively, and were fully vested upon acquisition. Additionally, as part of the acquisition of Apollo, 37,240 warrants were granted to replace outstanding Apollo warrants. These warrants had a weighted average exercise price of $9.94 and were fully vested upon acquisition. The full value of the options and warrants issued through acquisitions in 2022, $10.4 million, was considered purchase consideration. In 2023, as part of the acquisition of Professional, 501,561 options were granted to replace outstanding options. These options had a weighted average exercise price of $12.63 and were fully vested upon acquisition. The full value of the options issued through the Professional acquisition was $10.3 million and was considered purchase consideration. The impact of share-based compensation on the Company’s financial results is presented below: For the Year Ended December 31, (In thousands) 2023 2022 2021 Share-based compensation expense 1 $ 13,440 $ 11,155 $ 8,685 Income tax benefit (3,406) (2,827) (2,067) 1 Excludes $10.3 million in 2023, $10.4 million in 2022 and $4.7 million in 2021 associated with replacement awards granted in bank acquisitions. The total unrecognized compensation cost and the weighted-average period over which unrecognized compensation cost is expected to be recognized related to non-vested share-based compensation arrangements at December 31, 2023 is presented below: (In thousands) Unrecognized Weighted-Average Period Remaining (Years) Restricted stock awards $ 14,392 1.94 Restricted stock units 5,636 2.30 Total $ 20,028 2.04 Restricted Stock Awards RSAs are granted to various employees and vest over time, generally three years. Compensation cost of RSAs is based on the market value of the Company’s common stock at the date of grant and is recognized over the required service period on a straight-line basis. The Company’s accounting policy is to recognize forfeitures as they occur. A summary of the status of the Company’s non-vested RSAs as of December 31, 2023, and changes during the year then ended, is presented below: Restricted Weighted-Average Grant-Date Fair Value Non-vested at January 1, 2023 533,275 $ 31.26 Granted 631,409 24.57 Forfeited/Canceled (112,456) 27.35 Vested (289,016) 28.22 Non-vested at December 31, 2023 763,212 $ 27.45 Information regarding restricted stock awards during each of the following years is presented below: For the Year Ended December 31, 2023 2022 2021 Weighted-average grant date fair value $ 24.57 $ 33.08 $ 35.08 Fair value of awards vested 1 $ 8,156 $ 6,923 $ 4,731 1 Based on grant date fair value, in thousands. Restricted Stock Units RSUs allow the grantee to earn 0%-225% of the target award based on the Company's achievement of performance goals relating to average annual earnings per share growth and average annual return on average tangible equity relative to a group of peer companies, each measured over a three year period beginning with the year of grant. A summary of the status of the Company’s non-vested RSUs as of December 31, 2023, and changes during the year then ended, is presented below: Restricted Weighted-Average Grant-Date Fair Value Non-vested at January 1, 2023 310,034 $ 28.69 Granted 233,175 22.84 Forfeited/Canceled (47,416) 20.58 Vested (112,092) 17.82 Non-vested at December 31, 2023 383,701 $ 29.31 Information regarding restricted stock units during each of the following years is presented below: For the Year Ended December 31, 2023 2022 2021 Weighted-average grant date fair value $ 22.84 $ 34.11 $ 35.24 Fair value of awards vested 1 $ 1,997 $ 2,305 $ 1,936 1 Based on grant date fair value, in thousands. Stock Options The fair value of options and warrants granted is estimated on the date of grant using the Black-Scholes options-pricing model. In 2023, 2022, and 2021, options to purchase shares of Seacoast stock were granted to option holders of acquired entities in accordance with the terms of the merger agreements. For the Year Ended December 31, 2023 2022 2021 Risk-free interest rates 4.25 % 2.21 % 0.12 % Expected dividend yield 2.45 % 1.95 % 1.65 % Expected volatility 64.32 % 32.09 % 36.87 % Expected lives (years) 1.8 1.0 1.0 A summary of the Company’s stock options as of December 31, 2023, and changes during the year then ended, is presented below: Options Weighted-Average Exercise Price Outstanding at January 1, 2023 837,622 $ 21.72 Granted in Acquisition 501,561 12.63 Exercised (507,133) 14.76 Forfeited (8,087) 20.77 Outstanding and Exercisable at December 31, 2023 823,963 $ 20.48 Weighted-Average Remaining Contractual Term (Years) 3.29 Aggregate Intrinsic Value (000s) $ 7,053 The following table presents information related to stock options during each of the following years: For the Year Ended December 31, 2023 2022 2021 Weighted-average grant date fair value $ 12.63 $ 14.28 $ 16.70 Intrinsic value of stock options exercised, in thousands 5,969 8,860 5,808 Supplemental Executive Retirement Plan The Company sponsors a Supplemental Executive Retirement Plan (“SERP”), which is a non-qualified deferred compensation arrangement that provides the Company's Chief Executive Officer with supplemental retirement benefits. The present value of the accumulated benefit, which is recorded as an accrued liability, was $0.4 million and $0.2 million as of December 31, 2023 and 2022, respectively. Employee Stock Purchase Plan The Employee Stock Purchase Plan (“ESPP”) authorizes the Company to issue up to 800,000 common shares of the Company’s common stock to eligible employees of the Company. These shares may be purchased by employees at a price equal to 95% of the fair market value of the shares on the purchase date. Employee contributions to the ESPP are made through payroll deductions. 2023 2022 2021 ESPP shares purchased 35,630 20,972 14,834 Weighted-average employee purchase price $ 22.56 $ 30.76 $ 32.43

Lease Commitments

Lease Commitments	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Lease Commitments	Lease Commitments The Company is the lessee in various noncancellable operating leases for land, buildings, and equipment. Certain leases contain provisions for variable lease payments that are linked to the consumer price index. Lease cost consists of: For the Year Ended December 31, (In thousands) 2023 2022 2021 Operating lease cost $ 10,667 $ 8,111 $ 5,872 Variable lease cost 2,827 1,599 996 Short-term lease cost 919 427 564 Sublease income (639) (704) (601) Total lease cost $ 13,774 $ 9,433 $ 6,831 The following table provides supplemental information related to leases: As of and For the Year Ended December 31, (In thousands, except for weighted average data) 2023 2022 Operating lease right-of-use assets $ 46,772 $ 47,500 Operating lease liabilities 50,545 50,770 Cash paid during the year for amounts included in the measurement of operating lease liabilities 10,005 16,508 Right-of-use assets recorded during the year in exchange for new or renewed operating lease obligations 4,139 5,305 Right-of-use assets obtained during the year through bank acquisition 3,909 14,597 Weighted average remaining lease term for operating leases 7.0 years 8.0 years Weighted average discount rate for operating leases 4.94 % 4.64 % The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If, at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company includes the extended term in the calculation of the lease liability. Maturities of lease liabilities as of December 31, 2023 are as follows: (In thousands) 2024 $ 10,465 2025 9,833 2026 8,499 2027 7,437 2028 6,388 Thereafter 16,181 Total undiscounted cash flows 58,803 Less: Net present value adjustment (8,258) Total $ 50,545

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes is as follows: For the Year Ended December 31, (In thousands) 2023 2022 2021 Current Federal $ 14,716 $ 2,770 $ 23,661 State 6,061 (1,266) 3,882 Deferred Federal 9,524 23,710 6,800 State (82) 6,415 (8) $ 30,219 $ 31,629 $ 34,335 The difference between the total expected tax expense (computed by applying the U.S. Federal tax rate of 21% to pretax income) and the reported income tax provision relating to income before income taxes is as follows: For the Year Ended December 31, (In thousands) 2023 2022 2021 Tax rate applied to income before income taxes $ 28,193 $ 29,009 $ 33,335 Increase (decrease) resulting from the effects of: Nondeductible acquisition costs 300 924 419 Tax exempt interest on loans and securities (639) (406) (414) Income from bank owned life insurance (2,217) (935) (862) State income taxes (1,256) (1,081) (813) Tax credit investments (402) (406) (213) Stock compensation (446) (992) (1,239) Executive compensation disallowance 638 402 253 Other 69 (36) (5) Federal tax provision 24,240 26,479 30,461 State tax provision 5,979 5,150 3,874 Total income tax provision $ 30,219 $ 31,629 $ 34,335 Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The following is a summary of the significant components of the Company's deferred tax assets and liabilities as of: December 31, (In thousands) 2023 2022 Allowance for credit losses $ 40,710 $ 31,097 Other real estate owned 91 591 Accrued stock compensation 4,556 2,931 Federal tax loss carryforward 2,660 3,150 State tax loss carryforward 1,084 1,117 Lease liabilities 12,811 12,868 Net unrealized securities losses 50,817 59,392 Deferred compensation 2,828 2,766 Accrued interest and fee income 34,665 16,035 Other 7,027 1,755 Gross deferred tax assets 157,249 131,702 Less: Valuation allowance — — Deferred tax assets net of valuation allowance 157,249 131,702 Core deposit intangible (24,301) (18,767) Net unrealized derivatives gains (670) — Premises and equipment (1,771) (2,214) Right of use assets (11,854) (12,039) Other (5,421) (4,225) Gross deferred tax liabilities (44,017) (37,245) Net deferred tax assets $ 113,232 $ 94,457 Included in the table above is the effect of temporary differences associated with the Company's investments in debt securities accounted for under ASC Topic 320, Investments - Debt Securities, for which no deferred tax expense or benefit was recognized. These items are recorded as Accumulated Other Comprehensive Income in the shareholders' equity section of the consolidated balance sheet. In 2023, unrealized losses on debt securities of $212.7 million resulted in a deferred tax asset of $50.8 million. In 2022, unrealized losses of $247.4 million resulted in a deferred tax asset of $59.4 million. At December 31, 2023, the Company's net deferred tax assets ("DTAs") of $113.2 million consisted of $91.0 million of net U.S. federal DTAs and $22.2 million of net state DTAs. At December 31, 2022, the Company's net DTAs of $94.5 million consisted of $76.8 million of U.S. federal DTAs and $17.7 million of net state DTAs. Management assesses the necessity of a valuation allowance recorded against DTAs at each reporting period. The determination of whether a valuation allowance for net DTAs is appropriate is subject to considerable judgment and requires an evaluation of positive and negative evidence. Based on an assessment of relevant evidence, including favorable trending in asset quality and certainty regarding the amount of future taxable income that the Company forecasts, management concluded that it was more likely than not that its net DTAs will be realized based upon future taxable income. Management's determination in the realization of projected future taxable income is based upon analysis of the Company's risk profile and its trending financial performance, including credit quality. The Company believes it can reasonably predict future results of operations that result in taxable income at sufficient levels over the future period of time that the Company has available to realize its net DTA. Management expects to realize the $113.2 million in net DTAs well in advance of the statutory carryforward period. At December 31, 2023, approximately $2.7 million of DTAs related to federal net operating losses which will expire in annual installments beginning in 2029 through 2032. Additionally, $1.1 million of the DTAs related to state net operating losses which will expire in annual installments beginning in 2029 through 2034. Remaining DTAs are not related to net operating losses or credits and therefore, have no expiration date. The Company recognizes interest and penalties, as appropriate, as part of the provisioning for income taxes. No interest or penalties were accrued at December 31, 2023. In accordance with ASC Topic 718, Compensation – Stock Compensation, the Company recognized $0.5 million, $1.1 million and $0.9 million in 2023, 2022, and 2021, respectively, of discrete tax benefits related to share-based compensation. In accordance with ASC Topic 323, Investments-Equity Method and Joint Ventures, amortization of the Company's low-income housing credit investments of $2.8 million, $2.5 million and $1.6 million was reflected as income tax expense for the years ended December 31, 2023, 2022, and 2021, respectively. The amounts of affordable housing tax credits, amortization and tax benefits recorded as income tax expense for the year ended December 31, 2023 were $2.7 million, $2.8 million, and $1.5 million, respectively. The amounts of affordable housing tax credits, amortization and tax benefits recorded as income tax expense for the year ended December 31, 2022 were $2.0 million, $2.5 million and $1.0 million, respectively, and for the year ended December 31, 2021 were $1.2 million, $1.6 million and $0.7 million, respectively. The carrying value of the affordable housing credit investments was $39.5 million and $27.3 million at December 31, 2023 and 2022, respectively, of which $26.3 million and $17.6 million, respectively, was unfunded. The Company has no unrecognized income tax benefits or provisions due to uncertain income tax positions. No federal or state income tax return examinations are currently in process. The Company does not expect to record or realize any material unrecognized tax benefits during 2023. The following are the major tax jurisdictions in which the Company operates and the earliest tax year, exclusive of the impact of the net operating loss carryforwards, subject to examination: Jurisdiction Tax Year United States of America 2020 Florida 2020

Regulatory Capital

Regulatory Capital	12 Months Ended
	Dec. 31, 2023
Banking And Thrift Disclosure [Abstract]
Regulatory Capital	Regulatory Capital Required Regulatory Capital The Company is subject to various regulatory capital requirements administered by the Federal banking agencies. Failure to meet the minimum capital requirements can initiate certain mandatory and possible additional discretionary actions by the regulators, which could have a direct material impact on the financial statements. These requirements involve quantitative measures of assets, liabilities and certain off-balance sheet items calculated pursuant to regulatory guidance. The Company's capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Quantitative measures established by regulation to ensure capital adequacy require the Company to maintain minimum amounts and ratios of total, Tier 1 capital and common equity Tier 1 capital to risk-weighted assets and of Tier 1 capital to average assets, all as defined in the regulations. At December 31, 2023 and 2022, the Company and Seacoast Bank, its wholly-owned banking subsidiary, were both considered “well capitalized” based on the applicable U.S. regulatory capital ratio requirements as reflected in the table below: Minimum to meet Minimum for Capital Adequacy Purpose 1 (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Seacoast Banking Corporation of Florida (Consolidated) At December 31, 2023: Total Risk-Based Capital Ratio $ 1,713,797 15.92 % n/a n/a $ 861,355 ≥ 8.00 % Tier 1 Capital Ratio 1,565,710 14.54 n/a n/a 646,017 ≥ 6.00 Common Equity Tier 1 Capital Ratio 1,493,499 13.87 n/a n/a 484,512 ≥ 4.50 Leverage Ratio 1,565,710 11.00 n/a n/a 569,317 ≥ 4.00 At December 31, 2022: Total Risk-Based Capital Ratio $ 1,454,168 15.79 % n/a n/a $ 736,709 ≥ 8.00 % Tier 1 Capital Ratio 1,361,832 14.79 n/a n/a 552,532 ≥ 6.00 Common Equity Tier 1 Capital Ratio 1,277,295 13.87 n/a n/a 414,399 ≥ 4.50 Leverage Ratio 1,361,832 11.46 n/a n/a 475,134 ≥ 4.00 Seacoast National Bank (A Wholly Owned Bank Subsidiary) At December 31, 2023: Total Risk-Based Capital Ratio $ 1,593,431 14.82 % $ 1,075,494 ≥ 10.00 % $ 860,395 ≥ 8.00 % Tier 1 Capital Ratio 1,466,878 13.64 860,395 ≥ 8.00 645,296 ≥ 6.00 Common Equity Tier 1 Capital Ratio 1,466,874 13.64 699,071 ≥ 6.50 483,972 ≥ 4.50 Leverage Ratio 1,466,878 10.32 711,039 ≥ 5.00 568,831 ≥ 4.00 At December 31, 2022: Total Risk-Based Capital Ratio $ 1,330,836 14.47 % $ 919,904 ≥ 10.00 % $ 735,923 ≥ 8.00 % Tier 1 Capital Ratio 1,238,500 13.46 735,923 ≥ 8.00 551,942 ≥ 6.00 Common Equity Tier 1 Capital Ratio 1,238,496 13.46 597,938 ≥ 6.50 413,957 ≥ 4.50 Leverage Ratio 1,238,500 10.44 620,398 ≥ 5.00 496,318 ≥ 4.00 1 Excludes the Basel III capital conservation buffer of 2.5%, which if not exceeded may constrain dividends, equity repurchases and compensation. n/a - not applicable.

Seacoast Banking Corporation of

Seacoast Banking Corporation of Florida (Parent Company Only) Financial Information	12 Months Ended
	Dec. 31, 2023
Condensed Financial Information Disclosure [Abstract]
Seacoast Banking Corporation of Florida (Parent Company Only) Financial Information	Seacoast Banking Corporation of Florida (Parent Company Only) Financial Information Balance Sheets December 31, (In thousands) 2023 2022 Assets Cash $ 466 $ 58 Securities purchased under agreement to resell with subsidiary bank, maturing within 30 days 101,191 111,698 Investment in subsidiaries 2,109,341 1,578,786 Other assets 4,837 2,335 $ 2,215,835 $ 1,692,877 Liabilities and Shareholders' Equity Long-term debt $ 106,302 $ 84,533 Other liabilities 1,551 673 Shareholders' equity 2,107,982 1,607,671 $ 2,215,835 $ 1,692,877 Statements of Income Year Ended December 31, (In thousands) 2023 2022 2021 Income Interest/other $ 3,573 $ 897 $ 167 Dividends from subsidiary Bank 40,655 48,424 47,684 Total income 44,228 49,321 47,851 Interest expense 7,408 3,090 1,683 Other expenses 996 1,023 765 Total expenses 8,404 4,113 2,448 Income before income taxes and equity in undistributed income of subsidiaries 35,824 45,208 45,403 Income tax benefit (1,015) (675) (481) Income before equity in undistributed income of subsidiaries 36,839 45,883 45,884 Equity in undistributed income of subsidiaries 67,194 60,624 78,519 Net income $ 104,033 $ 106,507 $ 124,403 Statements of Cash Flows Year Ended December 31, (In thousands) 2023 2022 2021 Cash flows from operating activities Adjustments to reconcile net income to net cash provided Net Income $ 104,033 $ 106,507 $ 124,403 Equity in undistributed income of subsidiaries (67,194) (60,624) (78,519) Net increase in other assets (3,029) (13,823) (489) Net increase in other liabilities 22,646 499 400 Net cash provided by operating activities 56,456 32,559 45,795 Cash flows from investing activities Net cash from bank acquisitions 10,237 17,610 — Net advances with subsidiary 270 (13,300) (28,324) Net cash provided by (used in) investment activities 10,507 4,310 (28,324) Cash flows from financing activities Dividends paid (60,591) (41,242) (22,506) Stock based employment benefit plans 4,904 4,374 5,022 Repurchase of common stock (10,868) — — Net cash used in financing activities (66,555) (36,868) (17,484) Net change in cash 408 1 (13) Cash at beginning of year 58 57 70 Cash at end of year $ 466 $ 58 $ 57 Supplemental disclosure of cash flow information: Cash paid during the period for interest $ 5,315 $ 2,890 $ 1,441

Contingent Liabilities and Comm

Contingent Liabilities and Commitments with Off-Balance Sheet Risk	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities and Commitments with Off-Balance Sheet Risk	Contingent Liabilities and Commitments with Off-Balance Sheet Risk The Company and its subsidiaries, because of the nature of their business, are at all times subject to numerous legal actions, threatened or filed. Management presently believes that none of the legal proceedings to which it is a party are likely to have a materially adverse effect on the Company’s consolidated financial condition, operating results or cash flows. The Company's subsidiary bank is party to financial instruments with off balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, standby letters of credit, and limited partner equity commitments. The subsidiary bank’s exposure to credit loss in the event of non-performance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contract or notional amount of those instruments. The subsidiary bank uses the same credit policies in making commitments and standby letters of credit as they do for on balance sheet instruments. Unfunded commitments for the Company as of: December 31, (In thousands) 2023 2022 Contract or Notional Amount Financial instruments whose contract amounts represent credit risk: Commitments to extend credit $ 2,651,206 $ 2,814,924 Standby letters of credit and financial guarantees written: Secured 35,669 19,744 Unsecured 2,830 3,191 Unfunded limited partner equity commitment 20,004 26,761 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 generally have fixed expiration dates or other termination clauses and may require payment of a fee. Commitments include home equity lines, commercial and consumer lines of credit and construction loans. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The subsidiary bank evaluates each customer's creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the bank upon extension of credit, is based on management's credit evaluation of the counterparty. Collateral held varies but may include accounts receivable, inventory, equipment, and commercial and residential real estate. Standby letters of credit are conditional commitments issued by the subsidiary bank to guarantee the performance of a customer to a third party. These instruments have fixed termination dates and most end without being drawn; therefore, they do not represent a significant liquidity risk. Those guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing, and similar transactions. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The subsidiary bank holds collateral supporting these commitments for which collateral is deemed necessary. Collateral held for secured standby letters of credit at December 31, 2023 totaled $35.8 million. Unfunded limited partner equity commitments at December 31, 2023 totaled $20.0 million that the Company has committed to small business investment companies under the SBIC Act to be used to provide capital to small businesses and entities that provide low income housing tax credits.

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Under ASC Topic 820, fair value measurements for items measured at fair value on a recurring and nonrecurring basis at December 31, 2023 and December 31, 2022 included: Fair Value Quoted Prices in Significant Other Significant Other (In thousands) Measurements Level 1 Level 2 Level 3 At December 31, 2023 Financial Assets Debt securities available-for-sale 1 $ 1,836,020 $ 192 $ 1,835,828 $ — Derivative financial instruments 2 31,481 — 31,481 — Loans held for sale 2 4,391 — 4,391 — Loans 3 15,242 — — 15,242 Other real estate owned 4 7,560 — — 7,560 Equity securities 5 13,623 13,623 — — Financial Liabilities Derivative financial instruments 2 $ 28,879 $ — $ 28,879 $ — At December 31, 2022 Financial Assets Debt securities available-for-sale 1 $ 1,871,742 $ 186 $ 1,871,556 $ — Derivative financial instruments 2 23,142 — 23,142 — Loans held for sale 2 3,151 — 3,151 — Loans 3 8,513 — 1,183 7,330 Other real estate owned 4 2,301 — 2,301 — Equity securities 5 8,220 8,220 — — Financial Liabilities Derivative financial instruments 2 $ 23,142 $ — $ 23,142 $ — 1 See “Note 3 - Securities” for further detail of fair value of individual investment categories. 2 Recurring fair value basis determined using observable market data. 3 See “Note 4 - Loans”. Nonrecurring fair value adjustments to collateral-dependent loans reflect full or partial write-downs that are based on current appraised values of the collateral. 4 Fair value is measured on a nonrecurring basis in accordance with ASC Topic 360, Property, Plant, and Equipment. 5 Investment in shares of mutual funds that invest primarily in CRA-qualified debt securities, reported at fair value in Other Assets. Recurring fair value basis is determined using market quotations. Debt securities available-for-sale: Level 1 securities consist of U.S. Treasury securities. Other securities are reported at fair value utilizing Level 2 inputs. The estimated fair value of a security is determined based on market quotations when available or, if not available, by using quoted market prices for similar securities, pricing models or discounted cash flow analyses, using observable market data where available. Derivative financial instruments : The fair value of these derivatives is based on a discounted cash flow approach. Due to the observable nature of the inputs used in deriving the fair value of these derivative contracts, the valuation of interest rate swaps is classified as Level 2. The fair values of these instruments are based upon the estimated amount the Company would receive or pay to terminate the instruments, taking into account current interest rates and, when appropriate, the current credit worthiness of the counterparties. Loans held for sale : Fair values are based upon estimated values to be received from independent third party purchasers. These loans are intended for sale and the Company believes the fair value is the best indicator of the resolution of these loans. Fair market value changes occur due to changes in interest rates, the borrower’s credit, the secondary loan market and the market for a borrower’s debt. Interest income is recorded based on contractual terms of the loan in accordance with Company's policy on loans held for investment. Loans : Fair value of collateral-dependent real estate loans is based on recent real estate appraisals less estimated costs of sale. For these loans, evaluations may use either a single valuation approach or a combination of approaches, such as comparative sales, cost and/or income approach. A significant unobservable input in the income approach is the estimated capitalization rate for a given piece of collateral. At December 31, 2023, capitalization rates utilized to determine fair value of the underlying collateral averaged approximately 7.1%. Adjustments to comparable sales may be made by an appraiser to reflect local market conditions or other economic factors and may result in changes in the fair value of an asset over time. As such, the fair value of these loans is considered level 3 in the fair value hierarchy. Collateral-dependent loans measured at fair value totaled $17.8 million with a specific reserve of $2.6 million at December 31, 2023, compared to $10.2 million with a specific reserve of $2.9 million at December 31, 2022. Other real estate owned : When appraisals are used to determine fair value and the appraisals are based on a market approach, the fair value of other real estate owned (“OREO”) is classified as level 2. When the fair value of OREO is based on appraisals which require significant adjustments to market-based valuation inputs or apply an income approach based on unobservable cash flows, the fair value of OREO is classified as Level 3. Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally coincides with the Company's monthly and/or quarterly valuation process. There were no such transfers during the twelve months ended December 31, 2023 and 2022. The carrying amount and fair value of the Company's other significant financial instruments that were not disclosed previously in the balance sheet and for which carrying amount is not fair value as of December 31, 2023 and December 31, 2022 is as follows: Carrying Quoted Prices in Significant Other Significant Other (In thousands) Amount Level 1 Level 2 Level 3 At December 31, 2023 Financial Assets Held-to-maturity debt securities 1 $ 680,313 $ — $ 558,359 $ — Time deposits with other banks 5,857 — 5,756 — Loans, net 9,898,767 — — 9,805,693 Financial Liabilities Deposits 11,776,935 — — 11,775,613 FHLB borrowings 50,000 — 49,745 — Long-term debt 109,458 — 100,851 — At December 31, 2022 Financial Assets Held-to-maturity debt securities 1 $ 747,408 $ — $ 617,741 $ — Time deposits with other banks 3,236 — 2,989 — Loans, net 8,022,316 — — 7,845,375 Financial Liabilities Deposits 9,981,595 — — 9,976,125 FHLB borrowings 150,000 — — 149,450 Long-term debt 84,533 — 82,226 — 1 See “Note 3 - Securities” for further detail of recurring fair value basis of individual investment categories. The short maturity of Seacoast’s assets and liabilities results in having a significant number of financial instruments whose fair value equals or closely approximates carrying value. Such financial instruments are reported in the following balance sheet captions: cash and due from banks, interest bearing deposits with other banks, short-term FHLB borrowings and securities sold under agreement to repurchase. The following methods and assumptions were used to estimate the fair value of each class of financial instrument for which it is practicable to estimate that value at December 31, 2023 and December 31, 2022: Loans : Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as commercial, mortgage, etc. Each loan category is further segmented into fixed and adjustable rate interest terms and by performing and nonperforming categories. The fair value of loans is calculated by discounting scheduled cash flows through the estimated life including prepayment considerations, using estimated market discount rates that reflect the risks inherent in the loan. The fair value approach considers market-driven variables including credit related factors and reflects an “exit price” as defined in ASC Topic 820, Fair Value Measurement . Deposit Liabilities : The fair value of demand deposits, savings accounts and money market deposits is the amount payable at the reporting date. The fair value of fixed maturity certificates of deposit is estimated using the rates currently offered for funding of similar remaining maturities.

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2023
Business Combinations [Abstract]
Business Combinations	Business Combinations Acquisition of Professional Holding Corp. On January 31, 2023, the Company completed its acquisition of Professional Holding Corp. (“Professional”). Simultaneously, upon completion of the merger of Professional and the Company, Professional Bank was merged with and into Seacoast Bank. Prior to the acquisition, Professional Bank operated nine branches across South Florida. The transaction further expanded the Company’s presence in the tri-county South Florida market, which includes Miami-Dade, Broward, and Palm Beach counties, Florida’s largest MSA and the 8 th largest in the nation. The Company acquired 100% of the outstanding common stock of Professional. Under the terms of the merger agreement, Professional shareholders received 0.8909 shares of Seacoast common stock for each share of Professional common stock held immediately prior to the merger, and Professional option holders received options to purchase Seacoast common stock, with the number of shares underlying each such option and the applicable exercise price adjusted using the same 0.8909 exchange ratio. (In thousands, except per share data) January 31, 2023 Number of Professional common shares outstanding 14,358 Per share exchange ratio 0.8909 Number of shares of SBCF common stock issued 12,792 Multiplied by common stock price per share at January 31, 2023 $ 32.11 Value of SBCF common stock issued $ 410,738 Cash paid for fractional shares 5 Fair value of Professional options converted 10,304 Total purchase price $ 421,047 The acquisition of Professional was accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations . The Company recognized goodwill of $251.7 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values. As part of the acquisition of Professional, options were granted to replace outstanding Professional options. These options were fully vested upon acquisition. The full value of the replacement options, $10.3 million, was associated with pre-combination service and was therefore included in the calculation of the total purchase consideration. Initially Measured Measurement As Adjusted (In thousands) January 31, 2023 Period Adjustments January 31, 2023 Assets: Cash and cash equivalents $ 141,680 $ — $ 141,680 Investment securities 167,059 — 167,059 Loans 1,991,713 (5,544) 1,986,169 Bank premises and equipment 2,478 — 2,478 Core deposit intangibles 48,885 — 48,885 Goodwill 248,091 3,583 251,674 BOLI 55,071 — 55,071 Other Assets 74,232 2,561 76,793 Total Assets $ 2,729,209 $ 600 $ 2,729,809 Liabilities: Deposits $ 2,119,341 $ — $ 2,119,341 Subordinated debt 21,141 — 21,141 Other Liabilities 167,680 600 168,280 Total Liabilities $ 2,308,162 $ 600 $ 2,308,762 The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. January 31, 2023 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 156,048 $ 151,012 Commercial real estate - owner occupied 293,473 274,068 Commercial real estate - non-owner occupied 752,393 692,746 Residential real estate 509,305 483,611 Commercial and financial 392,396 350,628 Consumer 33,656 32,153 PPP Loans 1,951 1,951 Total acquired loans $ 2,139,222 $ 1,986,169 The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) January 31, 2023 Book balance of loans at acquisition $ 155,031 Allowance for credit losses at acquisition (18,879) Non-credit related discount (12,361) Total PCD loans acquired $ 123,791 The acquisition of Professional resulted in the addition of $45.5 million in allowance for credit losses, including the $18.9 million identified in the table above for PCD loans, and $26.6 million for non-PCD loans recorded through the provision for credit losses at the date of acquisition. Included within the $18.9 million initial PCD allowance is $5.5 million recorded as a measurement period adjustment during the three months ended June 30, 2023, reflecting information obtained by the Company relating to events or circumstances existing at the acquisition date. The Company believes the deposits assumed in the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships. The core deposit intangible asset acquired from Professional is being amortized over eight years using an accelerated method of amortization. Acquisition of Apollo Bancshares, Inc. On October 7, 2022, the Company completed its acquisition of Apollo Bancshares, Inc. ("Apollo"). Simultaneously, upon completion of the merger of Apollo and the Company, Apollo Bank was merged with and into Seacoast Bank. Prior to the acquisition, Apollo Bank operated five branches in Miami-Dade County. As a result of this acquisition, the Company expects to expand its customer base and leverage economies of scale to positively affect the Company’s operating results. Under the terms of the merger agreement, Apollo shareholders received 1.006529 shares of Seacoast common stock for each share of Apollo common stock, and the minority interest holders in Apollo Bank received 1.195651 shares of Seacoast common stock for each share of Apollo Bank common stock. (In thousands, except per share data) October 7, 2022 Number of Apollo common shares outstanding 3,766 Per share exchange ratio 1.0065 Number of shares of SBCF common stock issued 3,791 Number of Apollo Bank minority interest shares outstanding 609 Per share exchange ratio 1.1957 Number of shares of SBCF common stock issued 728 Total number of shares of SBCF common stock issued 4,519 Multiplied by common stock price per share at October 7, 2022 $ 30.83 Value of SBCF common stock issued $ 139,307 Cash paid for fractional shares 5 Fair value of Apollo options and warrants converted 6,530 Total purchase price $ 145,842 The acquisition of Apollo was accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations . The Company recognized goodwill of $90.5 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values. As part of the acquisition of Apollo, options and warrants were granted to replace outstanding Apollo awards. These awards were fully vested upon acquisition. The full value of the replacement awards, $6.5 million, was associated with pre-combination service and was therefore included in the calculation of the total purchase consideration. Initially Measured Measurement As Adjusted (In thousands) October 7, 2022 Period Adjustments October 7, 2022 Assets: Cash and cash equivalents $ 41,001 $ — $ 41,001 Investment securities 203,596 — 203,596 Loans 666,522 — 666,522 Bank premises and equipment 7,809 — 7,809 Core deposit intangibles 28,699 — 28,699 Goodwill 90,237 251 90,488 Other Assets 52,724 (251) 52,473 Total Assets $ 1,090,588 $ — $ 1,090,588 Liabilities: Deposits $ 854,774 $ — $ 854,774 Other Liabilities 89,972 — 89,972 Total Liabilities $ 944,746 $ — $ 944,746 The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. October 7, 2022 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 74,126 $ 70,654 Commercial real estate - owner-occupied 131,093 121,600 Commercial real estate - non owner-occupied 374,673 340,561 Residential real estate 76,254 75,957 Commercial and financial 50,125 46,695 Consumer 11,307 11,055 Total acquired loans $ 717,578 $ 666,522 The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) October 7, 2022 Book balance of loans at acquisition $ 107,744 Allowance for credit losses at acquisition (2,658) Non-credit related discount (14,191) Total PCD loans acquired $ 90,895 The acquisition of Apollo resulted in the addition of $7.8 million in allowance for credit losses, including the $2.7 million identified in the table above for PCD loans, and $5.1 million for non-PCD loans recorded through the provision for credit losses at the date of acquisition. The Company believes the deposits assumed in the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships. Acquisition of Drummond Banking Company. On October 7, 2022, the Company completed its acquisition of Drummond Banking Company (“Drummond”). Simultaneously, upon completion of the merger of Drummond and the Company, Drummond’s wholly owned subsidiary bank, Drummond Community Bank, was merged with and into Seacoast Bank. Prior to the acquisition, Drummond Community Bank operated 18 branches across North Florida. As a result of this acquisition, the Company expects to expand its customer base and leverage economies of scale to positively affect the Company’s operating results. The Company acquired 100% of the outstanding common stock of Drummond. Under the terms of the merger agreement, each share of Drummond common stock was converted into the right to receive 51.9561 shares of Seacoast common stock. (In thousands, except per share data) October 7, 2022 Number of Drummond common shares outstanding 99 Per share exchange ratio 51.9561 Number of shares of SBCF common stock issued 5,136 Multiplied by common stock price per share at October 7, 2022 $ 30.83 Total purchase price $ 158,332 The acquisition of Drummond was accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations . The Company recognized goodwill of $103.6 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values. Initially Measured Measurement As Adjusted (In thousands) October 7, 2022 Period Adjustments October 7, 2022 Assets: Cash and cash equivalents $ 31,805 $ — $ 31,805 Investment securities 327,852 — 327,852 Loans 544,694 — 544,694 Bank premises and equipment 29,370 — 29,370 Core deposit and other intangibles 32,983 — 32,983 Goodwill 103,476 173 103,649 Other Assets 49,812 (173) 49,639 Total Assets $ 1,119,992 $ — $ 1,119,992 Liabilities: Deposits $ 881,281 $ — $ 881,281 Other Liabilities 80,379 — 80,379 Total Liabilities $ 961,660 $ — $ 961,660 The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. October 7, 2022 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 155,041 $ 140,401 Commercial real estate - owner-occupied 112,768 106,152 Commercial real estate - non owner-occupied 26,520 24,744 Residential real estate 85,767 78,663 Commercial and financial 88,026 82,067 Consumer 118,880 112,667 Total acquired loans $ 587,002 $ 544,694 The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) October 7, 2022 Book balance of loans at acquisition $ 58,878 Allowance for credit losses at acquisition (2,566) Non-credit related discount (4,607) Total PCD loans acquired $ 51,705 The acquisition of Drummond resulted in the addition of $12.5 million in allowance for credit losses, including the $2.6 million identified in the table above for PCD loans, and $9.9 million for non-PCD loans recorded through the provision for credit losses at the date of acquisition. The Company believes the deposits assumed in the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships. Acquisition of Business Bank of Florida, Corp. On January 3, 2022, the Company completed its acquisition of Business Bank of Florida, Corp., (“BBFC”). Simultaneously, upon completion of the merger of BBFC and the Company, BBFC’s wholly owned subsidiary bank, Florida Business Bank, was merged with and into Seacoast Bank. Prior to the acquisition, Florida Business Bank operated one branch in Melbourne, Florida. As a result of this acquisition, the Company expects to expand its customer base and leverage economies of scale to positively affect the Company’s operating results. The Company acquired 100% of the outstanding common stock of BBFC. Under the terms of the merger agreement, each share of BBFC common stock was converted into the right to receive 0.7997 of a share of Seacoast common stock. (In thousands, except per share data) January 3, 2022 Number of BBFC common shares outstanding 1,112 Per share exchange ratio 0.7997 Number of shares of SBCF common stock issued 889 Multiplied by common stock price per share on January 3, 2022 $ 35.39 Value of SBCF common stock issued $ 31,480 Fair value of BBFC options converted 497 Total purchase price $ 31,977 The acquisition of BBFC was accounted for under the acquisition method in accordance with ASC Topic 805, Business Combinations . The Company recognized goodwill of $8.0 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values. As part of the BBFC acquisition, options were granted to replace outstanding BBFC options. These options were fully vested upon acquisition. The full value of the replacement options, $0.5 million, was associated with pre-combination service and was therefore included in the calculation of the total purchase consideration. (In thousands) Measured Assets: Cash $ 38,332 Investment securities 26,011 Loans 121,774 Bank premises and equipment 2,102 Core deposit intangibles 2,621 Goodwill 7,962 Total assets $ 198,802 Liabilities: Deposits 166,326 Other liabilities 499 Total liabilities $ 166,825 The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. January 3, 2022 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 8,677 $ 8,414 Commercial real estate - owner-occupied 45,403 44,564 Commercial real estate - non owner-occupied 53,065 52,034 Residential real estate 5,377 5,421 Commercial and financial 11,335 11,280 Consumer 59 61 Total acquired loans $ 123,916 $ 121,774 The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) January 3, 2022 Book balance of loans at acquisition $ 714 Allowance for credit losses at acquisition (15) Non-credit related discount (48) Total PCD loans acquired $ 651 The acquisition of BBFC resulted in the addition of $1.8 million in allowance for credit losses, including the $15 thousand identified in the table above for PCD loans, and $1.8 million for non-PCD loans recorded through the provision for credit losses at the date of acquisition. The Company believes the deposits assumed in the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships. Acquisition of Sabal Palm Bancorp, Inc. On January 3, 2022, the Company completed its acquisition of Sabal Palm Bancorp, Inc. (“Sabal Palm”). Simultaneously, upon completion of the merger of Sabal Palm and the Company, Sabal Palm’s wholly owned subsidiary bank, Sabal Palm Bank, was merged with and into Seacoast Bank. Prior to the acquisition, Sabal Palm Bank operated three branches in the Sarasota area. As a result of this acquisition, the Company expects to expand its customer base and leverage economies of scale to positively affect the Company’s operating results. The Company acquired 100% of the outstanding common stock of Sabal Palm. Under the terms of the merger agreement, each share of Sabal Palm common stock was converted into the right to receive 0.2203 of a share of Seacoast common stock. (In thousands, except per share data) January 3, 2022 Number of Sabal Palm common shares outstanding 7,536 Per share exchange ratio 0.2203 Number of shares of SBCF common stock issued 1,660 Multiplied by common stock price per share on January 3, 2022 $ 35.39 Value of SBCF common stock issued $ 58,762 Fair value of Sabal Palm options converted 3,336 Total purchase price $ 62,098 The acquisition of Sabal Palm was accounted for under the acquisition method in accordance with ASC Topic 805, Business Combinations . The Company recognized goodwill of $26.5 million for this acquisition that is nondeductible for tax purposes. Determining fair values of assets and liabilities, especially the loan portfolio, core deposit intangibles, and deferred taxes, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values. As part of the Sabal Palm acquisition, options were granted to replace outstanding Sabal Palm options. These options were fully vested upon acquisition. The full value of the replacement options, $3.3 million, was associated with pre-combination service and was therefore included in the calculation of the total purchase consideration. (In thousands) Measured Assets: Cash $ 170,609 Time deposits with other banks 6,473 Loans 246,152 Bank premises and equipment 1,745 Core deposit intangibles 5,587 Goodwill 26,489 Other Assets 5,189 Total assets $ 462,244 Liabilities: Deposits 395,952 Other liabilities 4,194 Total liabilities $ 400,146 The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. January 3, 2022 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 9,256 $ 9,009 Commercial real estate - owner-occupied 57,690 56,591 Commercial real estate - non owner-occupied 89,153 87,280 Residential real estate 71,469 72,227 Commercial and financial 21,109 20,813 Consumer 233 232 Total acquired loans $ 248,910 $ 246,152 The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) January 3, 2022 Book balance of loans at acquisition $ 3,703 Allowance for credit losses at acquisition (37) Non-credit related discount (663) Total PCD loans acquired $ 3,003 The acquisition of Sabal Palm resulted in the addition of $3.4 million in allowance for credit losses, including the $37 thousand identified in the table above for PCD loans, and $3.4 million for non-PCD loans recorded through the provision for credit losses at the date of acquisition. The Company believes the deposits assumed in the acquisition have an intangible value. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships. Acquisition Costs Acquisition costs included in the Company's income statement for the years ended December 31, 2023, 2022 and 2021 were $33.2 million, $27.9 million and $7.9 million, respectively. Pro-Forma Information (unaudited) Pro-forma data as of 2023 and 2022 present information as if the acquisition of Professional occurred at the beginning of 2022. The pro-forma information is presented for illustrative purposes only and is not necessarily indicative of the results of operations that would have occurred if the transactions had been effected on the assumed dates. Twelve Months Ended December 31, (In thousands, except per share data) 2023 2022 Net interest income $ 499,008 $ 488,143 Net income available to common shareholders 128,086 107,398 EPS - basic 1.51 1.40 EPS - diluted 1.50 1.39

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	$ 104,033	$ 106,507	$ 124,403

Insider Trading Arrangements

Insider Trading Arrangements	3 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

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
General	General: Seacoast Banking Corporation of Florida (“Seacoast” or the “Company”) is a single segment financial holding company with one operating subsidiary bank, Seacoast National Bank (“Seacoast Bank”). The Company provides integrated financial services including commercial and consumer banking, wealth management, and mortgage and insurance services to customers at 77 full-service branches across Florida, and through advanced mobile and online banking solutions. The consolidated financial statements include the accounts of Seacoast and all its majority-owned subsidiaries but exclude trusts created for the issuance of trust preferred securities. In consolidation, all significant intercompany accounts and transactions are eliminated.
Use of Estimates	Use of Estimates:
Cash and Cash Equivalents	Cash and Cash Equivalents: Cash and cash equivalents include cash and due from banks and interest-bearing bank balances. Cash equivalents have original maturities of three months or less, and accordingly, the carrying amount of these instruments is deemed to be a reasonable estimate of fair value.
Time Deposits with Other Banks	Time Deposits with Other Banks: Time deposits with other banks consist of certificates of deposit with original maturities greater than three months and are carried at cost.
Securities Purchased and Sold Agreements	Securities Purchased and Sold Agreements:
Securities	Securities: Debt securities are classified as available-for-sale or held-to-maturity. Debt securities available-for-sale may be sold as part of the Company's asset/liability management or in response to, or in anticipation of, changes in interest rates and resulting prepayment risk, or for other factors, and are stated at fair value. Unrealized gains or losses are reflected as a component of shareholders' equity net of tax or included in noninterest income as appropriate. Debt securities held-to-maturity that the Company has the ability and intent to hold to maturity are carried at amortized cost. Equity securities with readily determinable fair values are considered marketable and measured at fair value with unrealized gains or losses included in noninterest income as securities gains or losses. Equity investments that do not have readily determinable fair values are considered non-marketable and are accounted for at cost under the measurement alternative to fair value, with adjustments for impairment and observable price changes if applicable. The estimated fair value of a security is determined based on market quotations when available or, if not available, by using quoted market prices for similar securities, pricing models or discounted cash flow analyses, using observable market data where available. Realized gains and losses are included in noninterest income as investment securities gains (losses). Interest and dividends on securities, including amortization of premiums and accretion of discounts on debt securities, is recognized in interest income on an accrual basis using the interest method. The Company anticipates prepayments of principal in the calculation of the effective yield for collateralized mortgage obligations and mortgage backed securities by obtaining estimates of prepayments from independent third parties. The adjusted cost of each specific security sold is used to compute realized gains or losses on the sale of securities on a trade date basis.
Credit losses on securities and Allowance for credit losses on loans	Credit losses on securities: For securities classified as held-to-maturity, management estimates expected credit losses over the remaining expected life and recognizes this estimate as an allowance for credit losses. Debt securities that are available-for-sale are considered impaired if the fair value is less than amortized cost. Impairments are analyzed at an individual security level on a quarterly basis and both quantitative and qualitative assessments are utilized to determine if a security has a credit loss. Qualitative assessments consider a range of factors including: percent decline in fair value, rating downgrades, subordination, duration, amortized loan-to-value, and the ability of the issuers to pay all amounts due in accordance with the contractual terms. Quantitative assessments are based on a discounted cash flow analysis, which includes evaluating the timing and amount of the expected cash flows. If any portion of the decline in fair value is related to credit, then the credit loss is recognized as an allowance for credit loss and the noncredit portion is recognized in other comprehensive income. For securities classified as available-for-sale, both quantitative and qualitative assessments are utilized to determine if a security has a credit loss. Quantitative assessments are based on a discounted cash flow method. Qualitative assessments consider a range of factors including: percent decline in fair value, rating downgrades, subordination, duration, amortized loan-to-value, and the ability of the issuers to pay all amounts due in accordance with the contractual terms. Allowance for credit losses on loans: The allowance for credit losses represents management's best estimate of expected credit losses related to the loan portfolio at the balance sheet date. The allowance for credit losses is a valuation account that is deducted from the loans' amortized cost basis to present the net amount to be collected on loans. Loan balances deemed uncollectible are charged off against the allowance for credit losses and recoveries are credited to the allowance. In order to adjust the allowance to the current estimate of expected credit losses, charges or credits to the provision for credit losses are reflected in the Consolidated Statements of Income. The Company excludes accrued interest on loans from its determination of allowance. Portfolio segments represent the level at which the Company develops and documents its methodology for determining its allowance for credit losses. See Note 4 - Loans, for a description of each of the segments, which are disaggregated by similar risk characteristics such as customer and/or collateral type. The allowance for credit losses is measured on a collective basis when similar risk characteristics exist. Management establishes the allowance using relevant available information from both internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Economic forecast data is sourced from Moody’s Analytics (“Moody’s”), a firm recognized for its research, analysis, and economic forecasts. The forecasts of future economic conditions are over a period that has been deemed reasonable and supportable, and in segments where it can no longer develop reasonable and supportable forecasts, the Company reverts to longer-term historical loss experience to estimate losses over the remaining life of the loans. The forecast may utilize one scenario or a composite of scenarios based on management's judgment and expectations around the current and future macroeconomic outlook. Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. In the implementation of CECL at January 1, 2020 and through June 30, 2022, the Company utilized a top-down allowance model based on an analysis of the probability of default (“PD”) and loss given default (“LGD”) to determine an expected loss by loan segment. During the third quarter of 2022, the Company transitioned to a tool that calculates the quantitative portion of expected credit losses at the individual loan level using a discounted cash flow methodology for its commercial loans and using a loss rate methodology for its consumer loans. The Moody's tool being utilized produces more granular results, incorporates more extensive historical loss data, and allows for a more efficient process. This change did not result in a material impact to the Company’s financial statements. Adjustments may be made to baseline reserves based on an assessment of internal and external influences on credit quality not fully reflected in the quantitative components of the allowance model. These influences may include elements such as changes in concentration, macroeconomic conditions, recent observable asset quality trends, staff turnover, regional market conditions, employment levels, model risk, and loan growth. Based upon management's assessments of these factors, the Company may apply qualitative adjustments to the allowance. Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. For loans that are individually evaluated, the allowance is determined through review of data specific to the borrower and the related collateral, if any. When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs as appropriate. The allowance for PCD loans is determined at the time of acquisition as the estimated expected credit loss of the outstanding balance or par value, based on the methodologies described previously for loans. The allowance recognized at acquisition is added to the acquisition date purchase price to determine the asset’s amortized cost basis. It is the Company's practice to ensure that the charge-off policy aligns with regulatory requirements. Losses on unsecured consumer loans are recognized at 90 days past due. In compliance with Federal Financial Institution Examination Council guidelines, secured consumer loans, including residential real estate, are typically charged off or charged down between 120 and 180 days past due, depending on the collateral type. Commercial loans and real estate loans are typically placed on nonaccrual status when principal or interest is past due for 90 days or more, unless the loan is both secured by collateral having realizable value sufficient to discharge the debt in-full and the loan is in process of collection. Secured loans may be charged down to the estimated value of the collateral with previously accrued unpaid interest reversed against interest income. Subsequent charge-offs may be required as a result of changes in the market value of collateral or other repayment prospects. Initial charge-off amounts are based on valuation estimates derived from appraisals or other market information. Generally, new appraisals are not received until the foreclosure process is completed; however, collateral values are evaluated periodically based on market information and incremental charge-offs are recorded if it is determined that collateral values have declined from their initial estimates.
Loans Held for Sale	Loans Held for Sale: The Company has elected to account for residential mortgage loans originated as held for sale at fair value. Changes in fair value are measured and recorded in Mortgage Banking Fees in noninterest income each period. The Company designates other loans as held for sale when it has the intent to sell them. These loans are recorded at the lower of cost or estimated fair value on an individual basis. When such loans are transferred to held for sale, any previously recorded allowance for credit losses is reversed into earnings and the loan is recorded at its amortized cost basis. Prior to the transfer, write-downs on the loans are recorded as charge-offs, establishing a new cost basis upon transfer.
Loans Held for Investment	Loans Held for Investment: Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are considered held for investment. Loans originated by Seacoast and held for investment are recognized at the principal amount outstanding, net of unearned income and amounts charged off. Unearned income includes discounts, premiums and deferred loan origination fees reduced by loan origination costs. Unearned income on loans is amortized to interest income over the life of the related loan using the effective interest rate method. Interest income is recognized on an accrual basis. Loans acquired through business acquisitions are recorded at fair value on the acquisition date. Loans that, as of the date of acquisition, have experienced a more-than-insignificant deterioration in credit quality since origination are classified as purchased credit deteriorated (“PCD”). Acquired loans that do not meet the definition of PCD are classified by the Company as acquired Non-PCD. Expected credit losses on loans not considered PCD are recognized through the provision for credit losses when the initial allowance is recorded.
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities : The Company enters into derivative contracts, including swaps and floors, to meet the needs of customers who request such services and to manage the Company's exposure to interest rate fluctuations. Derivative contracts are carried at fair value and recorded in the consolidated balance sheet within Other Assets or Other Liabilities. The gain or loss resulting from changes in the fair value of interest rate swaps designated and qualifying as cash flow hedging instruments is initially reported as a component of other comprehensive income and subsequently reclassified into earnings through interest income in the same period in which the hedged transaction affects earnings. The gain or loss resulting from changes in the fair value of interest rate swaps designed as fair value hedges is classified in the statement of income or comprehensive income in the line item associated with the instrument being hedged. The Company discontinues hedge accounting prospectively when it is determined that the derivative contract is no longer effective in offsetting changes in the cash flows of the hedged item, the derivative expires or is terminated, management determines that the designation of the derivative as a hedging instrument is no longer appropriate or, for a cash flow hedge, the occurrence of the forecasted transaction is no longer probable. When hedge accounting on a cash flow hedge is discontinued, any subsequent changes in fair value of the derivative are recognized in earnings. The cumulative unrealized gain or loss related to a discontinuing cash flow hedge continues to be reported in Accumulated Other Comprehensive Income (“AOCI”) and is subsequently reclassified into earnings in the same period in which the hedged transactions affects earnings, unless it is probable that the forecasted transaction will not occur by the end of the originally specified time period, in which case the cumulative unrealized gain or loss in AOCI is reclassified into earnings immediately. Cash flows resulting from derivative financial instruments that are accounted for as hedges are classified in the cash flow statement in the same category as the cash flows from the hedged items. See additional disclosures related to derivative instruments and hedging activities in “Note 6 – Derivatives”.
Loan Commitments and Letters of Credit	Loan Commitments and Letters of Credit:
Fair Value Measurements	Fair Value Measurements: The Company measures or monitors the fair value of many of its assets and liabilities. Certain assets are measured on a recurring basis, including available-for-sale securities, equity securities and derivatives. These assets are carried at fair value on the Company’s balance sheets. Additionally, fair value is measured on a non-recurring basis to evaluate assets or liabilities for impairment. Examples include collateral-dependent loans, other real estate owned, loan servicing rights, and long-lived assets. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Depending on the nature of the asset or liability, the Company uses various valuation techniques and assumptions when estimating fair value. The Company applies the following fair value hierarchy: Level 1 – Assets or liabilities for which the identical item is traded on an active exchange, such as publicly-traded instruments. Level 2 – Assets and liabilities valued based on observable market data for similar instruments. Level 3 – Assets and liabilities for which significant valuation assumptions are not readily observable in the market; instruments valued based on the best available data, some of which is internally-developed, and considers risk premiums that a market participant would require. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at and/or marked to fair value, the Company considers the principal market in which it would transact and considers assumptions that market participants would use when pricing the asset or liability. When possible, the Company looks to active and observable markets to price identical assets or liabilities. When identical assets and liabilities are not traded in active markets, the Company looks to market observable data for similar assets and liabilities. Certain assets and liabilities are not actively traded in observable markets and the Company must use alternative valuation techniques to derive a fair value measurement.
Bank Premises and Equipment	Bank Premises and Equipment: Bank premises and equipment are stated at cost, less accumulated depreciation and amortization. Premises and equipment include certain costs associated with the acquisition of leasehold improvements. Depreciation and amortization are recognized principally by the straight-line method, over the estimated useful lives as follows: buildings - 25-40 years, leasehold improvements - 5-25 years, furniture and equipment - 3-12 years. Leasehold improvements amortize over the shorter of the lease term or estimated useful life. Premises and equipment and other long-term assets are reviewed for impairment when events indicate their carrying amount may not be recoverable. If impaired, the assets are written down to fair value with a corresponding increase to noninterest expense.
Other Real Estate Owned	Other Real Estate Owned: Other real estate owned (“OREO”) consists of real estate taken in foreclosure of defaulted loan balances. These assets are carried at an amount equal to the loan balance prior to foreclosure plus costs incurred for improvements to the property, but no more than the estimated fair value of the property less estimated selling costs. Any valuation adjustments required at the date of transfer are charged to the allowance for credit losses. Subsequently, unrealized losses and realized gains and losses are included in other noninterest expense. Operating results from OREO are recorded in other noninterest expense. OREO may also include bank premises no longer utilized in the course of the Company's business (closed branches) that are initially recorded at the lower of carrying value or fair value, less costs to sell. If the fair value of the premises is less than carrying value, a write down is recorded through noninterest expense. Costs to maintain the property are expensed.
Intangible Assets	Intangible Assets. The Company’s intangible assets consist of goodwill, core deposit intangibles (CDIs), customer relationship intangibles and loan servicing rights. Goodwill results from business combinations and represents the difference between the purchase price and the fair value of net assets acquired. Goodwill may be adjusted for up to one year from the acquisition date in the event new information is obtained which, if known at the date of the acquisition, would have impacted the fair value of the acquired assets and liabilities. Goodwill is considered to have an indefinite useful life and is not amortized, but rather tested for impairment annually in the fourth quarter, or more often if circumstances arise that may indicate risk of impairment. If impaired, goodwill is written down with a corresponding impact to noninterest expense. The Company recognizes CDI that results from either whole bank acquisitions or branch acquisitions. CDI is initially measured at fair value and then amortized over periods ranging from six
Bank Owned Life Insurance (BOLI)	Bank Owned Life Insurance (BOLI): The Company, through its subsidiary bank, has purchased or acquired through bank acquisitions, life insurance policies on certain key executives and members of management. BOLI is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement.
Other Investments	Other Investments:
Leases	Leases:
Revenue Recognition	Revenue Recognition: The Company recognizes two types of revenue in its Consolidated Statements of Income, interest income and noninterest income. The Company's principal source of revenue is interest income from loans and securities which is recognized on an accrual basis using the effective interest method. Noninterest income includes revenue from various types of transactions and services provided to customers. The Company recognizes revenue from contracts with customers as performance obligations are satisfied. Performance obligations are typically satisfied in one year or less. Relevant activity includes: • Service Charges on Deposits: Seacoast Bank offers a variety of deposit-related services to its customers through several delivery channels including branch offices, ATMs, telephone, mobile, and internet banking. Transaction-based fees are recognized when services, each of which represents a performance obligation, are satisfied. Service fees may be assessed monthly, quarterly, or annually; however, the account agreements to which these fees relate can be canceled at any time by Seacoast and/or the customer. Therefore, the contract term is considered a single day (a day-to-day contract). • Wealth Management Income: The Company earns trust fees from fiduciary services provided to trust customers, which include custody of assets, recordkeeping, collection and distribution of funds. Fees are earned over time and accrued monthly as the Company provides services, and are generally assessed based on the market value of the trust assets under management at a particular date or over a particular period. The Company also earns commissions and fees from investment brokerage services provided to its customers through an arrangement with a third-party service provider. Commissions received from the third-party service provider are recorded monthly and are based upon customer activity. Fees are earned over time and accrued monthly as services are provided. The Company acts as an agent in this arrangement and therefore presents the brokerage commissions and fees net of related costs. • Interchange Income: Fees earned on card transactions depend upon the volume of activity, as well as the fees permitted by the payment network. Such fees are recognized by the Company upon fulfilling its performance obligation to approve the card transaction. •
Treasury Stock and Share Repurchases	Treasury Stock and Share Repurchases: The Company's repurchases of shares of its common stock are recorded at cost as additional paid-in capital and result in a reduction of shareholders' equity. Shares repurchased in 2023 pursuant to the Company's share repurchase program were immediately retired, and therefore were not included in treasury stock. Activity in treasury stock represents shares traded to offset employee payroll taxes on vested shares. Shares held in treasury are also used for employee share purchases through the Company's employee stock purchase plan.
Stock-Based Compensation	Stock-Based Compensation: The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model with market assumptions. The fair value is amortized on a straight-line basis over the vesting period, generally five years. For restricted stock awards, which generally vest based on continued service with the Company, the deferred compensation is measured as the fair value of the shares on the date of grant, and the deferred compensation is amortized as salaries and wages expense in accordance with the applicable vesting schedule, generally straight-line over three years. Some award shares vest based upon the Company achieving certain performance goals and the amortization expense recorded within salaries and wages is based on an estimate of the most likely results on a straight line basis. The Company accounts for forfeitures as they occur.
Income Taxes	Income Taxes : Deferred tax assets and liabilities are determined based on temporary differences between the carrying amounts of assets and liabilities in the consolidated financial statements and their related tax bases and are measured using the enacted tax rates and laws that are in effect. A valuation allowance is recognized for a deferred tax asset if, based on the weight of available evidence, it is more likely than not that some portion or all of the deferred tax asset will not be realized. The effect on deferred tax assets and liabilities of a change in rates is recognized as income or expense in the period in which the change occurs.
Recently Adopted Accounting Standards and Recently Issued Accounting Standards	Recently Adopted Accounting Standards On January 1, 2023, the Company adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2022-02, “Troubled Debt Restructurings and Vintage Disclosures.” ASU 2022-02 eliminates the accounting guidance for troubled debt restructurings (“TDRs”) in ASC 310-40, Receivables – Troubled Debt Restructurings by Creditors , and introduces new disclosures related to modifications with borrowers that are experiencing financial difficulties. ASU 2022-02 also requires the disclosure of current-period gross write-offs by year of origination for financing receivables held at amortized cost. Upon adoption, the Company eliminated the separate credit loss estimation process for loans classified as TDRs. The adoption did not have a material impact to the consolidated financial statements. For additional information on the loans modified for borrowers in financial difficulty and for the disclosure of current-period gross write-offs by year of origination, see “Note 4 – Loans.” On January 1, 2023, the Company adopted FASB ASU 2022-01, “Fair Value Hedging - Portfolio Layer Method.” ASU 2022-01 permits the designation of multiple hedging relationships on a single closed portfolio. The guidance also expands the scope of the portfolio layer method to include non-prepayable assets, specifies eligible hedging instruments in a single-layer hedge, and provides additional guidance on the accounting for and disclosure of hedge basis adjustments under the portfolio layer method. The adoption did not have a material impact to the consolidated financial statements. For additional information on fair value hedges, see “Note 6 – Derivatives.” Issued Accounting Standards In November 2023, the FASB issued ASU 2023-07, "Improvements to Reportable Segment Disclosures." ASU 2023-07 requires disclosure of significant segment expenses and other segment items on an interim and annual basis. The standard is effective for fiscal years beginning after December 15, 2023 and for interim periods beginning after December 15, 2024. The Company is evaluating the impact of the changes to its existing disclosures. In December 2023, the FASB issued ASU 2023-09, "Improvements to Income Tax Disclosures." ASU 2023-09 requires disclosure of specific categories in the income tax rate reconciliation and requires additional information for reconciling items that meet a quantitative threshold. The standard requires an annual disclosure of income taxes paid, net of refunds received,

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	For the Year Ended December 31, (In thousands, except per share data) 2023 2022 2021 Basic earnings per share Net Income $ 104,033 $ 106,507 $ 124,403 Total weighted average common stock outstanding 83,800 63,707 56,586 Net income per share $ 1.24 $ 1.67 $ 2.20 Diluted earnings per share Net Income $ 104,033 $ 106,507 $ 124,403 Total weighted average common stock outstanding 83,800 63,707 56,586 Add: Dilutive effect of share-based awards outstanding 529 557 502 Total weighted average diluted stock outstanding 84,329 64,264 57,088 Net income per share $ 1.23 $ 1.66 $ 2.18 Net income has not been allocated to unvested restricted stock awards that are participating securities because the amounts that would be allocated are not material to net income per share of common stock. Unvested restricted stock awards that are participating securities represent less than one percent of all of the outstanding shares of common stock for each of the periods presented.

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Cost and Fair Value of Securities Available for Sale	The amortized cost, gross unrealized gains and losses and fair value of AFS and HTM securities at December 31, 2023 and December 31, 2022 are summarized as follows: December 31, 2023 (In thousands) Amortized Gross Gross Fair Available-for-Sale Debt Securities U.S. Treasury securities and obligations of U.S. government agencies $ 37,718 $ 205 $ (478) $ 37,445 Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 1,152,753 780 (184,152) 969,381 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 385,013 2,824 (19,565) 368,272 Private mortgage-backed securities and collateralized mortgage obligations 135,878 36 (10,911) 125,003 Collateralized loan obligations 300,855 11 (1,411) 299,455 Obligations of state and political subdivisions 10,486 — (1,096) 9,390 Other debt securities 26,599 576 (101) 27,074 Totals $ 2,049,302 $ 4,432 $ (217,714) $ 1,836,020 Held-to-Maturity Debt Securities Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 590,676 $ — $ (111,746) $ 478,930 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 89,637 — (10,208) 79,429 Totals $ 680,313 $ — $ (121,954) $ 558,359 December 31, 2022 (In thousands) Amortized Gross Gross Fair Available-for-Sale Debt Securities U.S. Treasury securities and obligations of U.S. government agencies $ 13,813 $ 173 $ (339) $ 13,647 Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 1,170,062 539 (196,272) 974,329 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 391,135 — (26,811) 364,324 Private mortgage-backed securities and collateralized mortgage obligations 179,148 70 (12,831) 166,387 Collateralized loan obligations 313,155 — (10,251) 302,904 Obligations of state and political subdivisions 29,350 122 (1,731) 27,741 Other debt securities 22,640 197 (427) 22,410 Totals $ 2,119,303 $ 1,101 $ (248,662) $ 1,871,742 Held-to-Maturity Debt Securities Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 634,300 $ 64 $ (116,711) $ 517,653 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 113,108 — (13,020) 100,088 Totals $ 747,408 $ 64 $ (129,731) $ 617,741
Summary of Amortized Cost and Fair Value of Securities Held to Maturity	The amortized cost, gross unrealized gains and losses and fair value of AFS and HTM securities at December 31, 2023 and December 31, 2022 are summarized as follows: December 31, 2023 (In thousands) Amortized Gross Gross Fair Available-for-Sale Debt Securities U.S. Treasury securities and obligations of U.S. government agencies $ 37,718 $ 205 $ (478) $ 37,445 Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 1,152,753 780 (184,152) 969,381 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 385,013 2,824 (19,565) 368,272 Private mortgage-backed securities and collateralized mortgage obligations 135,878 36 (10,911) 125,003 Collateralized loan obligations 300,855 11 (1,411) 299,455 Obligations of state and political subdivisions 10,486 — (1,096) 9,390 Other debt securities 26,599 576 (101) 27,074 Totals $ 2,049,302 $ 4,432 $ (217,714) $ 1,836,020 Held-to-Maturity Debt Securities Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 590,676 $ — $ (111,746) $ 478,930 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 89,637 — (10,208) 79,429 Totals $ 680,313 $ — $ (121,954) $ 558,359 December 31, 2022 (In thousands) Amortized Gross Gross Fair Available-for-Sale Debt Securities U.S. Treasury securities and obligations of U.S. government agencies $ 13,813 $ 173 $ (339) $ 13,647 Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 1,170,062 539 (196,272) 974,329 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 391,135 — (26,811) 364,324 Private mortgage-backed securities and collateralized mortgage obligations 179,148 70 (12,831) 166,387 Collateralized loan obligations 313,155 — (10,251) 302,904 Obligations of state and political subdivisions 29,350 122 (1,731) 27,741 Other debt securities 22,640 197 (427) 22,410 Totals $ 2,119,303 $ 1,101 $ (248,662) $ 1,871,742 Held-to-Maturity Debt Securities Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 634,300 $ 64 $ (116,711) $ 517,653 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 113,108 — (13,020) 100,088 Totals $ 747,408 $ 64 $ (129,731) $ 617,741
Summary of Investments Classified by Contractual Maturity	Securities not due at a single maturity date are shown separately. Held-to-Maturity Available-for-Sale (In thousands) Amortized Fair Amortized Fair Due in less than one year $ — $ — $ 4,537 $ 4,504 Due after one year through five years — — 6,066 6,069 Due after five years through ten years — — 9,465 9,362 Due after ten years — — 28,136 26,900 $ — $ — $ 48,204 $ 46,835 Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 590,676 $ 478,930 $ 1,152,753 $ 969,381 Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 89,637 79,429 385,013 368,272 Private mortgage-backed securities and collateralized mortgage obligations — — 135,878 125,003 Collateralized loan obligations — — 300,855 299,455 Other debt securities — — 26,599 27,074 Totals $ 680,313 $ 558,359 $ 2,049,302 $ 1,836,020
Schedule of Unrealized Loss and Fair Value on Investments	The tables below indicate the fair value of available-for-sale debt securities with unrealized losses for which no allowance for credit losses has been recorded. December 31, 2023 Less than 12 months 12 months or longer Total 1 (In thousands) Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury securities and obligations of U.S. government agencies $ 24,933 $ (143) $ 3,594 $ (335) $ 28,527 $ (478) Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 91,867 (9,320) 826,324 (174,832) 918,191 (184,152) Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 24,251 (1,270) 262,666 (18,295) 286,917 (19,565) Private mortgage-backed securities and collateralized mortgage obligations 3,945 (69) 119,475 (10,842) 123,420 (10,911) Collateralized loan obligations 60,087 (223) 232,545 (1,188) 292,632 (1,411) Obligations of state and political subdivisions 326 (2) 9,064 (1,094) 9,390 (1,096) Other debt securities 10,579 (101) — — 10,579 (101) Totals $ 215,988 $ (11,128) $ 1,453,668 $ (206,586) $ 1,669,656 $ (217,714) 1 Comprised of 504 individual securities December 31, 2022 Less than 12 months 12 months or longer Total 1 (In thousands) Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury securities and obligations of U.S. government agencies $ 3,788 $ (328) $ 249 $ (11) $ 4,037 $ (339) Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 304,732 (33,401) 645,115 (162,870) 949,847 (196,271) Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities 341,920 (21,555) 22,404 (5,257) 364,324 (26,812) Private mortgage-backed securities and collateralized mortgage obligations 130,488 (8,255) 25,234 (4,576) 155,722 (12,831) Collateralized loan obligations 242,370 (8,343) 60,534 (1,908) 302,904 (10,251) Obligations of state and political subdivisions 23,804 (1,656) 425 (75) 24,229 (1,731) Other debt securities 11,459 (427) — — 11,459 (427) Totals $ 1,058,561 $ (73,965) $ 753,961 $ (174,697) $ 1,812,522 $ (248,662) 1 Comprised of 420 individual securities

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2023
Receivables [Abstract]
Schedule of Portfolio Loans, Purchased Credit Impaired Loans and Purchased Unimpaired Loans	The following tables present net loan balances by segment as of: December 31, 2023 (In thousands) Portfolio Loans Acquired Non-PCD Loans PCD Loans Total Construction and land development $ 519,426 $ 247,654 $ 542 $ 767,622 Commercial real estate - owner occupied 1,079,633 552,627 38,021 1,670,281 Commercial real estate - non-owner occupied 1,844,588 1,323,222 152,080 3,319,890 Residential real estate 1,714,748 710,129 20,815 2,445,692 Commercial and financial 1,237,090 318,683 52,115 1,607,888 Consumer 175,969 74,854 744 251,567 Totals $ 6,571,454 $ 3,227,169 $ 264,317 $ 10,062,940 December 31, 2022 (In thousands) Portfolio Loans Acquired Non-PCD Loans PCD Loans Total Construction and land development $ 364,900 $ 201,333 $ 21,100 $ 587,332 Commercial real estate - owner occupied 995,154 451,202 31,946 1,478,302 Commercial real estate - non-owner occupied 1,695,411 767,138 127,225 2,589,774 Residential real estate 1,558,643 271,378 19,482 1,849,503 Commercial and financial 1,152,747 185,240 15,238 1,353,225 Consumer 177,338 89,458 19,791 286,587 Totals $ 5,944,193 $ 1,965,749 $ 234,782 $ 8,144,724
Schedule of Past Due Financing Receivables	The following table presents the status of net loan balances as of December 31, 2023 and December 31, 2022. December 31, 2023 (In thousands) Current Accruing Accruing Accruing Nonaccrual Total Portfolio Loans Construction and land development $ 519,383 $ 19 $ — $ — $ 24 $ 519,426 Commercial real estate - owner occupied 1,078,732 — — — 901 1,079,633 Commercial real estate - non-owner occupied 1,840,485 $ 685 — — 3,418 1,844,588 Residential real estate 1,701,862 4,373 1,515 169 6,829 1,714,748 Commercial and financial 1,221,941 1,372 145 50 13,582 1,237,090 Consumer 174,798 763 290 — 118 175,969 Total Portfolio Loans $ 6,537,201 $ 7,212 $ 1,950 $ 219 $ 24,872 $ 6,571,454 Acquired Non-PCD Loans Construction and land development $ 245,674 $ 891 $ 289 $ — $ 800 $ 247,654 Commercial real estate - owner occupied 545,374 1,691 133 — 5,429 552,627 Commercial real estate - non-owner occupied 1,310,100 11,577 — — 1,545 1,323,222 Residential real estate 704,417 2,586 888 153 2,085 710,129 Commercial and financial 315,229 50 36 35 3,333 318,683 Consumer 71,986 568 618 618 1,064 74,854 Total Acquired Non-PCD Loans $ 3,192,780 $ 17,363 $ 1,964 $ 806 $ 14,256 $ 3,227,169 PCD Loans Construction and land development $ 442 $ 100 $ — $ — $ — $ 542 Commercial real estate - owner occupied 34,667 — — — 3,354 38,021 Commercial real estate - non-owner occupied 148,308 — — — 3,772 152,080 Residential real estate 18,923 497 169 154 1,072 20,815 Commercial and financial 34,337 — — — 17,778 52,115 Consumer 651 85 8 — — 744 Total PCD Loans $ 237,328 $ 682 $ 177 $ 154 $ 25,976 $ 264,317 Total Loans $ 9,967,309 $ 25,257 $ 4,091 $ 1,179 $ 65,104 $ 10,062,940 December 31, 2022 (In thousands) Current Accruing Accruing Accruing Nonaccrual Total Portfolio Loans Construction and land development $ 364,841 $ — $ — $ — $ 59 $ 364,900 Commercial real estate - owner occupied 993,690 — 67 440 957 995,154 Commercial real estate - non-owner occupied 1,695,381 — — — 30 1,695,411 Residential real estate 1,550,040 1,172 147 — 7,284 1,558,643 Commercial and financial 1,143,635 1,065 476 342 7,229 1,152,747 Consumer 176,444 550 252 1 91 177,338 Total Portfolio Loans $ 5,924,031 $ 2,787 $ 942 $ 783 $ 15,650 $ 5,944,193 Acquired Non-PCD Loans Construction and land development $ 201,263 $ — $ — $ — $ 70 $ 201,333 Commercial real estate - owner occupied 450,109 796 297 — — 451,202 Commercial real estate - non-owner occupied 765,633 162 — — 1,343 767,138 Residential real estate 270,215 577 — — 586 271,378 Commercial and financial 183,953 790 87 — 410 185,240 Consumer 87,317 779 616 525 221 89,458 Total Acquired Non-PCD Loans $ 1,958,490 $ 3,104 $ 1,000 $ 525 $ 2,630 $ 1,965,749 PCD Loans Construction and land development $ 20,680 $ — $ — $ — $ 420 $ 21,100 Commercial real estate - owner occupied 30,517 23 23 — 1,383 31,946 Commercial real estate - non-owner occupied 124,115 — — — 3,110 127,225 Residential real estate 17,885 10 — — 1,587 19,482 Commercial and financial 11,201 4 — — 4,033 15,238 Consumer 17,884 1,001 336 540 30 19,791 Total PCD Loans $ 222,282 $ 1,038 $ 359 $ 540 $ 10,563 $ 234,782 Total Loans $ 8,104,803 $ 6,929 $ 2,301 $ 1,848 $ 28,843 $ 8,144,724
Schedule of Nonaccrual Loans by Loan Category	The following tables present net balances of loans on nonaccrual status and the related allowance for credit losses, if any, as of: December 31, 2023 (In thousands) Nonaccrual Loans With No Related Allowance Nonaccrual Loans With an Allowance Total Nonaccrual Loans Construction and land development $ — $ 824 $ 824 Commercial real estate - owner-occupied 4,859 4,825 9,684 Commercial real estate - non-owner occupied 3,938 4,797 8,735 Residential real estate 1,792 8,194 9,986 Commercial and financial 4,868 29,825 34,693 Consumer — 1,182 1,182 Totals $ 15,457 $ 49,647 $ 65,104 December 31, 2022 (In thousands) Nonaccrual Loans With No Related Allowance Nonaccrual Loans With an Allowance Total Nonaccrual Loans Construction and land development $ 615 $ — $ 615 Commercial real estate - owner-occupied 957 1,641 2,597 Commercial real estate - non-owner occupied 3,347 837 4,184 Residential real estate 8,072 1,036 9,109 Commercial and financial 4,724 6,891 11,615 Consumer 40 683 723 Totals $ 17,755 $ 11,088 $ 28,843
Schedule of Loans by Year of Origination and Credit Quality Indicator	The following tables present the risk rating of loans and gross charge-offs by year of origination as of: December 31, 2023 (In thousands) 2023 2022 2021 2020 2019 Prior Revolving Total Construction and Land Development Risk Ratings: Pass $ 80,750 $ 295,043 $ 107,158 $ 20,199 $ 21,942 $ 28,902 $ 210,716 $ 764,710 Special Mention — 1,407 — — — 393 289 2,089 Substandard — — — — — 499 324 823 Substandard Impaired — — — — — — — — Doubtful — — — — — — — — Total $ 80,750 $ 296,450 $ 107,158 $ 20,199 $ 21,942 $ 29,794 $ 211,329 $ 767,622 Gross Charge-Offs $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate - owner occupied Risk Ratings: Pass $ 145,642 $ 272,384 $ 281,870 $ 165,475 $ 171,897 $ 551,177 $ 36,952 $ 1,625,397 Special Mention — 159 1,335 — 524 9,122 1 11,141 Substandard — 5,176 1,041 6,342 7,113 4,387 — 24,059 Substandard Impaired — 848 16 649 3 8,104 64 9,684 Doubtful — — — — — — — — Total $ 145,642 $ 278,567 $ 284,262 $ 172,466 $ 179,537 $ 572,790 $ 37,017 $ 1,670,281 Gross Charge-Offs $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate - non-owner occupied Risk Ratings: Pass $ 234,226 $ 784,525 $ 657,499 $ 288,747 $ 397,031 $ 841,062 $ 25,954 $ 3,229,044 Special Mention — 29,381 2,092 2,964 — 12,120 — 46,557 Substandard — 685 8,723 8,332 8,578 8,985 250 35,553 Substandard Impaired — — — 1,066 1,849 5,821 — 8,736 Doubtful — — — — — — — — Total $ 234,226 $ 814,591 $ 668,314 $ 301,109 $ 407,458 $ 867,988 $ 26,204 $ 3,319,890 Gross Charge-Offs $ — $ — $ 11 $ — $ — $ — $ 109 $ 120 Residential real estate Risk Ratings: Pass 177,000 450,366 649,086 160,889 95,288 413,719 479,047 2,425,395 Special Mention 208 — — — 58 482 4,004 4,752 Substandard — — — — — — 1,824 1,824 Substandard Impaired 95 — 919 123 314 8,960 3,310 13,721 Doubtful — — — — — — — — Total $ 177,303 $ 450,366 $ 650,005 $ 161,012 $ 95,660 $ 423,161 $ 488,185 $ 2,445,692 Gross Charge-Offs $ — $ — $ — $ 44 $ — $ 159 $ 153 $ 356 December 31, 2023 (In thousands) 2023 2022 2021 2020 2019 Prior Revolving Total Commercial and financial Risk Ratings: Pass $ 315,560 $ 336,071 $ 333,113 $ 127,069 $ 66,165 $ 89,002 $ 269,108 $ 1,536,088 Special Mention 136 2,167 1,064 1,005 503 1,103 2,191 8,169 Substandard — 9,136 10,810 804 1,002 3,340 3,847 28,939 Substandard Impaired — 9,422 10,833 576 4,887 8,502 114 34,334 Doubtful — — — — — 358 — 358 Total $ 315,696 $ 356,796 $ 355,820 $ 129,454 $ 72,557 $ 102,305 $ 275,260 $ 1,607,888 Gross Charge-Offs $ 1,198 $ 117 $ 659 $ 3,007 $ 582 $ 12,584 $ 418 $ 18,565 Consumer Risk Ratings: Pass 20,557 66,699 45,534 19,747 20,300 19,080 56,473 248,390 Special Mention 5 334 279 77 5 194 65 959 Substandard — — — — — — — — Substandard Impaired 66 930 891 103 51 177 — 2,218 Doubtful — — — — — — — — Total $ 20,628 $ 67,963 $ 46,704 $ 19,927 $ 20,356 $ 19,451 $ 56,538 $ 251,567 Gross Charge-Offs $ 74 $ 1,910 $ 2,218 $ 362 $ 263 $ 666 $ 261 $ 5,754 Consolidated Total $ 974,245 $ 2,264,733 $ 2,112,263 $ 804,167 $ 797,510 $ 2,015,489 $ 1,094,533 $ 10,062,940 Gross Charge-Offs $ 1,272 $ 2,027 $ 2,888 $ 3,413 $ 845 $ 13,409 $ 941 $ 24,795 December 31, 2022 (In thousands) 2022 2021 2020 2019 2018 Prior Revolving Total Construction and Land Development Risk Ratings: Pass $ 223,204 $ 209,738 $ 18,239 $ 24,600 $ 12,783 $ 19,022 $ 50,960 $ 558,546 Special Mention 14,523 452 — 3,153 — — 15 18,143 Substandard — 9,227 — — 959 — — 10,186 Substandard Impaired — 52 — — — 405 — 457 Doubtful — — — — — — — — Total $ 237,727 $ 219,469 $ 18,239 $ 27,753 $ 13,742 $ 19,427 $ 50,975 $ 587,332 Commercial real estate - owner occupied Risk Ratings: Pass $ 215,453 $ 251,638 $ 180,081 $ 185,286 $ 121,568 $ 467,963 $ 32,253 $ 1,454,242 Special Mention 694 — 2,363 4,403 2,548 2,869 — 12,877 Substandard — — 667 2,625 573 4,444 — 8,309 Substandard Impaired — — — 311 294 2,269 — 2,874 Doubtful — — — — — — — — Total $ 216,147 $ 251,638 $ 183,111 $ 192,625 $ 124,983 $ 477,545 $ 32,253 $ 1,478,302 Commercial real estate - non-owner occupied Risk Ratings: Pass $ 593,364 $ 530,462 $ 231,693 $ 331,173 $ 228,077 $ 575,656 $ 35,326 $ 2,525,751 Special Mention — 16,257 735 5,438 — 4,975 — 27,405 Substandard — 192 19,315 — 5,515 7,412 — 32,434 Substandard Impaired — — 1,044 1,849 30 1,261 — 4,184 Doubtful — — — — — — — — Total $ 593,364 $ 546,911 $ 252,787 $ 338,460 $ 233,622 $ 589,304 $ 35,326 $ 2,589,774 Residential real estate Risk Ratings: Pass $ 270,054 $ 552,950 $ 121,879 $ 77,100 $ 97,900 $ 292,867 $ 423,764 $ 1,836,514 Special Mention — — 50 — 25 269 884 1,228 Substandard — — — — — 343 85 428 Substandard Impaired — — 133 32 83 9,515 1,570 11,333 Doubtful — — — — — — — — Total $ 270,054 $ 552,950 $ 122,062 $ 77,132 $ 98,008 $ 302,994 $ 426,303 $ 1,849,503 Commercial and financial Risk Ratings: Pass $ 359,833 $ 323,014 $ 142,332 $ 77,562 $ 57,924 $ 58,648 $ 292,818 $ 1,312,131 Special Mention 1,244 423 106 474 195 259 2,998 5,699 Substandard — 67 942 6,304 1,603 1,683 13,114 23,713 Substandard Impaired 5 58 5,109 147 3,642 2,545 176 11,682 Doubtful — — — — — — — — Total $ 361,082 $ 323,562 $ 148,489 $ 84,487 $ 63,364 $ 63,135 $ 309,106 $ 1,353,225 Consumer Risk Ratings: Pass $ 93,012 $ 77,889 $ 27,982 $ 28,772 $ 11,690 $ 16,480 $ 29,725 $ 285,550 Special Mention — — — 250 2 134 30 416 Substandard — — 11 — — 191 — 202 Substandard Impaired — — 18 55 36 103 207 419 Doubtful — — — — — — — — Total $ 93,012 $ 77,889 $ 28,011 $ 29,077 $ 11,728 $ 16,908 $ 29,962 $ 286,587 Consolidated Total $ 1,771,386 $ 1,972,420 $ 752,699 $ 749,534 $ 545,447 $ 1,469,313 $ 883,925 $ 8,144,724
Schedule of Troubled Borrower Modifications	The following table presents the amortized cost of troubled borrower modification (TBM) loans that were modified during the year ended December 31, 2023. December 31, 2023 (In thousands) Term Extension and/or Payment Delay 1 % of Total Class of Loans Residential real estate 818 0.03 % Commercial and financial 12,711 0.79 % Consumer 3,988 1.59 % Totals $ 17,517 0.17 % 1 At December 31, 2023, there were no unfunded lending related commitments associated with TBMs. December 31, 2023 (In thousands) Current Accruing Accruing Accruing Nonaccrual Total Residential real estate 596 — — — 222 818 Commercial and financial 244 — — — 12,467 12,711 Consumer 3,166 211 156 143 312 3,988 Totals $ 4,006 $ 211 $ 156 $ 143 $ 13,001 $ 17,517

Allowance for Credit Losses (Ta

Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2023
Receivables [Abstract]
Allowance for Credit Losses on Financing Receivables	Activity in the allowance for credit losses is summarized as follows: For the Year Ended December 31, 2023 (In thousands) Beginning Initial Allowance on PCD Loans Acquired During the Period Provision Charge- Recoveries Ending Construction and land development $ 6,464 $ 5 $ 2,160 $ — $ 8 $ 8,637 Commercial real estate - owner occupied 6,051 139 (663) — 2 5,529 Commercial real estate - non-owner occupied 43,258 647 4,315 (120) 188 48,288 Residential real estate 29,605 400 8,858 (356) 509 39,016 Commercial and financial 15,648 17,527 17,644 (18,565) 2,089 34,343 Consumer 12,869 161 5,204 (5,754) 638 13,118 Total $ 113,895 $ 18,879 $ 37,518 $ (24,795) $ 3,434 $ 148,931 For the Year Ended December 31, 2022 (In thousands) Beginning Initial Allowance on PCD Loans Acquired During the Period Provision Charge- Recoveries TDR Ending Construction and land development $ 2,751 $ 518 $ 3,127 $ — $ 68 $ — $ 6,464 Commercial real estate - owner occupied 8,579 38 (2,566) — — — 6,051 Commercial real estate - non-owner occupied 36,617 880 5,871 (179) 69 — 43,258 Residential real estate 12,811 229 16,284 (84) 393 (28) 29,605 Commercial and financial 19,744 1,699 (5,367) (1,233) 807 (2) 15,648 Consumer 2,813 1,911 8,834 (1,415) 733 (7) 12,869 Total $ 83,315 $ 5,275 $ 26,183 $ (2,911) $ 2,070 $ (37) $ 113,895 For the Year Ended December 31, 2021 (In thousands) Beginning Initial Allowance on PCD Loans Acquired During the Period Provision Charge- Recoveries TDR Ending Construction and land development $ 4,920 $ — $ (2,300) $ — $ 133 $ (2) $ 2,751 Commercial real estate - owner occupied 9,868 — (1,289) — — — 8,579 Commercial real estate - non-owner occupied 38,266 1,327 (1,664) (1,327) 15 — 36,617 Residential real estate 17,500 — (5,822) (57) 1,196 (6) 12,811 Commercial and financial 18,690 1,719 2,292 (3,987) 1,030 — 19,744 Consumer 3,489 — (638) (727) 697 (8) 2,813 Total $ 92,733 $ 3,046 $ (9,421) $ (6,098) $ 3,071 $ (16) $ 83,315

Derivatives (Tables)

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	(In thousands) Notional Amount Fair Value Balance Sheet Category December 31, 2023 Back-to-back swaps 1 $ 605,735 $ 28,804 Other Assets and Other Liabilities Securities fair value hedges 400,000 2,677 Other Assets Residential mortgage fair value hedges 200,000 75 Other Liabilities December 31, 2022 Back-to-back swaps 1 $ 312,808 $ 23,140 Other Assets and Other Liabilities Interest rate floors 300,000 2 Other Assets 1 Back-to-back swaps include risk participation agreements with notional amounts of $9.4 million and nominal fair value. The following table presents amounts recorded on the Consolidated Balance Sheet related to cumulative basis adjustments for fair value hedges. Carrying amount of the hedged items at December 31, Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged items at December 31, (In thousands) 2023 2022 2023 2022 Securities available-for-sale 1 $ 584,108 $ — $ 2,643 $ — Loans, net 2 633,693 — 44 — 1 At December 31, 2023, and December 31, 2022, the amortized cost basis and unallocated basis adjustments used in hedging relationships was $680.6 million and $0, respectively. Refer to Note 3 for a reconciliation of the amortized cost and fair value of available-for-sale securities. 2 These amounts represent the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the stated amount of assets in the closed portfolios a nticipated to be outstanding for the designated hedge period. At December 31, 2023, and December 31, 2022, the portfolio layer method was $200 million an d $0, respectively, of which $200 million and $0, respectively, was designated as hedged..

Bank Premises and Equipment (Ta

Bank Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Summary of Bank Premises and Equipment	Bank premises and equipment consisted of the following: (In thousands) Cost Accumulated Net December 31, 2023 Premises (including land of $35,588) $ 138,773 $ (36,500) $ 102,273 Furniture and equipment 42,507 (31,476) 11,031 Total $ 181,280 $ (67,976) $ 113,304 December 31, 2022 Premises (including land of $37,516) $ 138,447 $ (33,037) $ 105,410 Furniture and equipment 40,354 (28,872) 11,482 Total $ 178,801 $ (61,909) $ 116,892

Goodwill and Acquired Intangi_2

Goodwill and Acquired Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table presents changes in the carrying amount of goodwill: For the Year Ended December 31, (In thousands) 2023 2022 2021 Beginning of year $ 480,319 $ 252,154 $ 221,176 Changes from business combinations 252,098 228,165 30,978 Total $ 732,417 $ 480,319 $ 252,154
Schedule of Core Deposit Intangibles	The change in balance for CDI is as follows: For the Year Ended December 31, (In thousands) 2023 2022 2021 Beginning of year $ 71,285 $ 12,998 $ 14,577 Acquired CDI, including measurement period adjustments 49,143 67,388 3,454 Amortization expense (28,726) (9,101) (5,033) End of year $ 91,702 $ 71,285 $ 12,998
Gross Carrying Amount and Accumulated Amortization of Intangible Asset	The gross carrying amount and accumulated amortization of the Company's CDI subject to amortization as of: December 31, 2023 December 31, 2022 (In thousands) Gross Accumulated Gross Accumulated Core deposit intangible $ 135,212 $ (43,511) $ 97,778 $ (26,493)

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	A significant portion of the Company's short-term borrowings were comprised of securities sold under agreements to repurchase with overnight maturities: For the Year Ended December 31, (In thousands) 2023 2022 Maximum amount outstanding at any month end $ 374,573 $ 172,029 Weighted average interest rate at end of year 3.48 % 1.89 % Average amount outstanding $ 270,999 $ 121,318 Weighted average interest rate during the year 3.07 % 0.81 %
Schedule of Collateral Dependent Loans	Company securities pledged were as follows by collateral type and maturity as of: December 31, (In thousands) 2023 2022 Fair value of pledged securities - overnight and continuous: Mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities $ 396,378 $ 184,967
Schedule of Junior Subordinated Trust Preferred Debentures and Related Common Equity Securities	The following table summarizes the Company's junior subordinated trust preferred debentures and related common equity securities as of December 31, 2023: (In thousands) Description Issuance Date Acquisition Date 1 Maturity Date Junior Subordinated Debt Trust Preferred Securities Common Equity Securities Contractual Interest Rate Interest Rate at December 31, 2023 SBCF Capital Trust I 3/31/2005 n/a 3/31/2035 $ 20,619 $ 20,000 $ 619 3 month SOFR +533bps 7.34% SBCF Statutory Trust II 12/16/2005 n/a 12/16/2035 20,619 20,000 619 3 month SOFR +538bps 6.98% SBCF Statutory Trust III 6/29/2007 n/a 6/15/2037 12,372 12,000 372 3 month SOFR +538bps 7.00% The BANKshares, Inc. Statutory Trust I 12/19/2002 10/1/2014 12/26/2032 5,155 5,000 155 3 month SOFR +325bps 8.87% The BANKshares, Inc. Statutory Trust II 3/17/2004 10/1/2014 3/17/2034 4,124 4,000 124 3 month SOFR +279bps 8.43% The BANKshares, Inc. Capital Trust I 12/15/2005 10/1/2014 12/15/2035 5,155 5,000 155 3 month SOFR +538bps 7.03% Grand Bank Capital Trust I 10/29/2004 7/17/2015 10/29/2034 7,217 7,000 217 3 month SOFR +198bps 7.57% $ 75,261 $ 73,000 $ 2,261 1 Acquired junior subordinated debentures were recorded at their acquisition date fair values, which collectively was $5.6 million lower than face value; this amount is being amortized into interest expense over the remaining term to maturity.

Employee Benefits and Stock C_2

Employee Benefits and Stock Compensation (Tables)	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Share-Based Compensation	The impact of share-based compensation on the Company’s financial results is presented below: For the Year Ended December 31, (In thousands) 2023 2022 2021 Share-based compensation expense 1 $ 13,440 $ 11,155 $ 8,685 Income tax benefit (3,406) (2,827) (2,067) 1 Excludes $10.3 million in 2023, $10.4 million in 2022 and $4.7 million in 2021 associated with replacement awards granted in bank acquisitions.
Schedule of Unrecognized Compensation Cost, Nonvested Awards	The total unrecognized compensation cost and the weighted-average period over which unrecognized compensation cost is expected to be recognized related to non-vested share-based compensation arrangements at December 31, 2023 is presented below: (In thousands) Unrecognized Weighted-Average Period Remaining (Years) Restricted stock awards $ 14,392 1.94 Restricted stock units 5,636 2.30 Total $ 20,028 2.04
Schedule of Nonvested Share Activity	A summary of the status of the Company’s non-vested RSAs as of December 31, 2023, and changes during the year then ended, is presented below: Restricted Weighted-Average Grant-Date Fair Value Non-vested at January 1, 2023 533,275 $ 31.26 Granted 631,409 24.57 Forfeited/Canceled (112,456) 27.35 Vested (289,016) 28.22 Non-vested at December 31, 2023 763,212 $ 27.45 A summary of the status of the Company’s non-vested RSUs as of December 31, 2023, and changes during the year then ended, is presented below: Restricted Weighted-Average Grant-Date Fair Value Non-vested at January 1, 2023 310,034 $ 28.69 Granted 233,175 22.84 Forfeited/Canceled (47,416) 20.58 Vested (112,092) 17.82 Non-vested at December 31, 2023 383,701 $ 29.31
Schedule of Restricted Stock and Restricted Stock Units Activity	Information regarding restricted stock awards during each of the following years is presented below: For the Year Ended December 31, 2023 2022 2021 Weighted-average grant date fair value $ 24.57 $ 33.08 $ 35.08 Fair value of awards vested 1 $ 8,156 $ 6,923 $ 4,731 1 Based on grant date fair value, in thousands. For the Year Ended December 31, 2023 2022 2021 Weighted-average grant date fair value $ 22.84 $ 34.11 $ 35.24 Fair value of awards vested 1 $ 1,997 $ 2,305 $ 1,936 1 Based on grant date fair value, in thousands.
Schedule of Stock Option Valuation Assumptions	For the Year Ended December 31, 2023 2022 2021 Risk-free interest rates 4.25 % 2.21 % 0.12 % Expected dividend yield 2.45 % 1.95 % 1.65 % Expected volatility 64.32 % 32.09 % 36.87 % Expected lives (years) 1.8 1.0 1.0
Schedule of Stock Options Roll Forward	A summary of the Company’s stock options as of December 31, 2023, and changes during the year then ended, is presented below: Options Weighted-Average Exercise Price Outstanding at January 1, 2023 837,622 $ 21.72 Granted in Acquisition 501,561 12.63 Exercised (507,133) 14.76 Forfeited (8,087) 20.77 Outstanding and Exercisable at December 31, 2023 823,963 $ 20.48 Weighted-Average Remaining Contractual Term (Years) 3.29 Aggregate Intrinsic Value (000s) $ 7,053
Schedule of Stock Option Activity	The following table presents information related to stock options during each of the following years: For the Year Ended December 31, 2023 2022 2021 Weighted-average grant date fair value $ 12.63 $ 14.28 $ 16.70 Intrinsic value of stock options exercised, in thousands 5,969 8,860 5,808
Schedule of Employee Stock Purchase Plan Activity	2023 2022 2021 ESPP shares purchased 35,630 20,972 14,834 Weighted-average employee purchase price $ 22.56 $ 30.76 $ 32.43

Lease Commitments (Tables)

Lease Commitments (Tables)	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Schedule of Supplemental Lease Cost Information Related to Operating Leases	Lease cost consists of: For the Year Ended December 31, (In thousands) 2023 2022 2021 Operating lease cost $ 10,667 $ 8,111 $ 5,872 Variable lease cost 2,827 1,599 996 Short-term lease cost 919 427 564 Sublease income (639) (704) (601) Total lease cost $ 13,774 $ 9,433 $ 6,831
Schedule of Supplemental Balance Sheet Information Related to Operating Leases	The following table provides supplemental information related to leases: As of and For the Year Ended December 31, (In thousands, except for weighted average data) 2023 2022 Operating lease right-of-use assets $ 46,772 $ 47,500 Operating lease liabilities 50,545 50,770 Cash paid during the year for amounts included in the measurement of operating lease liabilities 10,005 16,508 Right-of-use assets recorded during the year in exchange for new or renewed operating lease obligations 4,139 5,305 Right-of-use assets obtained during the year through bank acquisition 3,909 14,597 Weighted average remaining lease term for operating leases 7.0 years 8.0 years Weighted average discount rate for operating leases 4.94 % 4.64 %
Schedule of Maturities of Lease Liabilities	Maturities of lease liabilities as of December 31, 2023 are as follows: (In thousands) 2024 $ 10,465 2025 9,833 2026 8,499 2027 7,437 2028 6,388 Thereafter 16,181 Total undiscounted cash flows 58,803 Less: Net present value adjustment (8,258) Total $ 50,545

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 provision for income taxes is as follows: For the Year Ended December 31, (In thousands) 2023 2022 2021 Current Federal $ 14,716 $ 2,770 $ 23,661 State 6,061 (1,266) 3,882 Deferred Federal 9,524 23,710 6,800 State (82) 6,415 (8) $ 30,219 $ 31,629 $ 34,335
Schedule of Effective Income Tax Rate Reconciliation	The difference between the total expected tax expense (computed by applying the U.S. Federal tax rate of 21% to pretax income) and the reported income tax provision relating to income before income taxes is as follows: For the Year Ended December 31, (In thousands) 2023 2022 2021 Tax rate applied to income before income taxes $ 28,193 $ 29,009 $ 33,335 Increase (decrease) resulting from the effects of: Nondeductible acquisition costs 300 924 419 Tax exempt interest on loans and securities (639) (406) (414) Income from bank owned life insurance (2,217) (935) (862) State income taxes (1,256) (1,081) (813) Tax credit investments (402) (406) (213) Stock compensation (446) (992) (1,239) Executive compensation disallowance 638 402 253 Other 69 (36) (5) Federal tax provision 24,240 26,479 30,461 State tax provision 5,979 5,150 3,874 Total income tax provision $ 30,219 $ 31,629 $ 34,335
Schedule of Deferred Tax Assets and Liabilities	The following is a summary of the significant components of the Company's deferred tax assets and liabilities as of: December 31, (In thousands) 2023 2022 Allowance for credit losses $ 40,710 $ 31,097 Other real estate owned 91 591 Accrued stock compensation 4,556 2,931 Federal tax loss carryforward 2,660 3,150 State tax loss carryforward 1,084 1,117 Lease liabilities 12,811 12,868 Net unrealized securities losses 50,817 59,392 Deferred compensation 2,828 2,766 Accrued interest and fee income 34,665 16,035 Other 7,027 1,755 Gross deferred tax assets 157,249 131,702 Less: Valuation allowance — — Deferred tax assets net of valuation allowance 157,249 131,702 Core deposit intangible (24,301) (18,767) Net unrealized derivatives gains (670) — Premises and equipment (1,771) (2,214) Right of use assets (11,854) (12,039) Other (5,421) (4,225) Gross deferred tax liabilities (44,017) (37,245) Net deferred tax assets $ 113,232 $ 94,457
Summary of Income Tax Examinations	The following are the major tax jurisdictions in which the Company operates and the earliest tax year, exclusive of the impact of the net operating loss carryforwards, subject to examination: Jurisdiction Tax Year United States of America 2020 Florida 2020

Regulatory Capital (Tables)

Regulatory Capital (Tables)	12 Months Ended
	Dec. 31, 2023
Banking And Thrift Disclosure [Abstract]
Summary of Required Regulatory Capital	At December 31, 2023 and 2022, the Company and Seacoast Bank, its wholly-owned banking subsidiary, were both considered “well capitalized” based on the applicable U.S. regulatory capital ratio requirements as reflected in the table below: Minimum to meet Minimum for Capital Adequacy Purpose 1 (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Seacoast Banking Corporation of Florida (Consolidated) At December 31, 2023: Total Risk-Based Capital Ratio $ 1,713,797 15.92 % n/a n/a $ 861,355 ≥ 8.00 % Tier 1 Capital Ratio 1,565,710 14.54 n/a n/a 646,017 ≥ 6.00 Common Equity Tier 1 Capital Ratio 1,493,499 13.87 n/a n/a 484,512 ≥ 4.50 Leverage Ratio 1,565,710 11.00 n/a n/a 569,317 ≥ 4.00 At December 31, 2022: Total Risk-Based Capital Ratio $ 1,454,168 15.79 % n/a n/a $ 736,709 ≥ 8.00 % Tier 1 Capital Ratio 1,361,832 14.79 n/a n/a 552,532 ≥ 6.00 Common Equity Tier 1 Capital Ratio 1,277,295 13.87 n/a n/a 414,399 ≥ 4.50 Leverage Ratio 1,361,832 11.46 n/a n/a 475,134 ≥ 4.00 Seacoast National Bank (A Wholly Owned Bank Subsidiary) At December 31, 2023: Total Risk-Based Capital Ratio $ 1,593,431 14.82 % $ 1,075,494 ≥ 10.00 % $ 860,395 ≥ 8.00 % Tier 1 Capital Ratio 1,466,878 13.64 860,395 ≥ 8.00 645,296 ≥ 6.00 Common Equity Tier 1 Capital Ratio 1,466,874 13.64 699,071 ≥ 6.50 483,972 ≥ 4.50 Leverage Ratio 1,466,878 10.32 711,039 ≥ 5.00 568,831 ≥ 4.00 At December 31, 2022: Total Risk-Based Capital Ratio $ 1,330,836 14.47 % $ 919,904 ≥ 10.00 % $ 735,923 ≥ 8.00 % Tier 1 Capital Ratio 1,238,500 13.46 735,923 ≥ 8.00 551,942 ≥ 6.00 Common Equity Tier 1 Capital Ratio 1,238,496 13.46 597,938 ≥ 6.50 413,957 ≥ 4.50 Leverage Ratio 1,238,500 10.44 620,398 ≥ 5.00 496,318 ≥ 4.00 1 Excludes the Basel III capital conservation buffer of 2.5%, which if not exceeded may constrain dividends, equity repurchases and compensation. n/a - not applicable.

Seacoast Banking Corporation _2

Seacoast Banking Corporation of Florida (Parent Company Only) Financial Information (Tables)	12 Months Ended
	Dec. 31, 2023
Condensed Financial Information Disclosure [Abstract]
Summary of Balance Sheet	Balance Sheets December 31, (In thousands) 2023 2022 Assets Cash $ 466 $ 58 Securities purchased under agreement to resell with subsidiary bank, maturing within 30 days 101,191 111,698 Investment in subsidiaries 2,109,341 1,578,786 Other assets 4,837 2,335 $ 2,215,835 $ 1,692,877 Liabilities and Shareholders' Equity Long-term debt $ 106,302 $ 84,533 Other liabilities 1,551 673 Shareholders' equity 2,107,982 1,607,671 $ 2,215,835 $ 1,692,877
Summary of Statements of Income (Loss)	Statements of Income Year Ended December 31, (In thousands) 2023 2022 2021 Income Interest/other $ 3,573 $ 897 $ 167 Dividends from subsidiary Bank 40,655 48,424 47,684 Total income 44,228 49,321 47,851 Interest expense 7,408 3,090 1,683 Other expenses 996 1,023 765 Total expenses 8,404 4,113 2,448 Income before income taxes and equity in undistributed income of subsidiaries 35,824 45,208 45,403 Income tax benefit (1,015) (675) (481) Income before equity in undistributed income of subsidiaries 36,839 45,883 45,884 Equity in undistributed income of subsidiaries 67,194 60,624 78,519 Net income $ 104,033 $ 106,507 $ 124,403
Summary of Statement of Cash Flows	Statements of Cash Flows Year Ended December 31, (In thousands) 2023 2022 2021 Cash flows from operating activities Adjustments to reconcile net income to net cash provided Net Income $ 104,033 $ 106,507 $ 124,403 Equity in undistributed income of subsidiaries (67,194) (60,624) (78,519) Net increase in other assets (3,029) (13,823) (489) Net increase in other liabilities 22,646 499 400 Net cash provided by operating activities 56,456 32,559 45,795 Cash flows from investing activities Net cash from bank acquisitions 10,237 17,610 — Net advances with subsidiary 270 (13,300) (28,324) Net cash provided by (used in) investment activities 10,507 4,310 (28,324) Cash flows from financing activities Dividends paid (60,591) (41,242) (22,506) Stock based employment benefit plans 4,904 4,374 5,022 Repurchase of common stock (10,868) — — Net cash used in financing activities (66,555) (36,868) (17,484) Net change in cash 408 1 (13) Cash at beginning of year 58 57 70 Cash at end of year $ 466 $ 58 $ 57 Supplemental disclosure of cash flow information: Cash paid during the period for interest $ 5,315 $ 2,890 $ 1,441

Contingent Liabilities and Co_2

Contingent Liabilities and Commitments with Off-Balance Sheet Risk (Tables)	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Summary of Financial Instruments with Off-Balance-Sheet Risk	Unfunded commitments for the Company as of: December 31, (In thousands) 2023 2022 Contract or Notional Amount Financial instruments whose contract amounts represent credit risk: Commitments to extend credit $ 2,651,206 $ 2,814,924 Standby letters of credit and financial guarantees written: Secured 35,669 19,744 Unsecured 2,830 3,191 Unfunded limited partner equity commitment 20,004 26,761

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis	Under ASC Topic 820, fair value measurements for items measured at fair value on a recurring and nonrecurring basis at December 31, 2023 and December 31, 2022 included: Fair Value Quoted Prices in Significant Other Significant Other (In thousands) Measurements Level 1 Level 2 Level 3 At December 31, 2023 Financial Assets Debt securities available-for-sale 1 $ 1,836,020 $ 192 $ 1,835,828 $ — Derivative financial instruments 2 31,481 — 31,481 — Loans held for sale 2 4,391 — 4,391 — Loans 3 15,242 — — 15,242 Other real estate owned 4 7,560 — — 7,560 Equity securities 5 13,623 13,623 — — Financial Liabilities Derivative financial instruments 2 $ 28,879 $ — $ 28,879 $ — At December 31, 2022 Financial Assets Debt securities available-for-sale 1 $ 1,871,742 $ 186 $ 1,871,556 $ — Derivative financial instruments 2 23,142 — 23,142 — Loans held for sale 2 3,151 — 3,151 — Loans 3 8,513 — 1,183 7,330 Other real estate owned 4 2,301 — 2,301 — Equity securities 5 8,220 8,220 — — Financial Liabilities Derivative financial instruments 2 $ 23,142 $ — $ 23,142 $ — 1 See “Note 3 - Securities” for further detail of fair value of individual investment categories. 2 Recurring fair value basis determined using observable market data. 3 See “Note 4 - Loans”. Nonrecurring fair value adjustments to collateral-dependent loans reflect full or partial write-downs that are based on current appraised values of the collateral. 4 Fair value is measured on a nonrecurring basis in accordance with ASC Topic 360, Property, Plant, and Equipment. 5 Investment in shares of mutual funds that invest primarily in CRA-qualified debt securities, reported at fair value in Other Assets. Recurring fair value basis is determined using market quotations.
Fair Value Measurements, Recurring and Nonrecurring	The carrying amount and fair value of the Company's other significant financial instruments that were not disclosed previously in the balance sheet and for which carrying amount is not fair value as of December 31, 2023 and December 31, 2022 is as follows: Carrying Quoted Prices in Significant Other Significant Other (In thousands) Amount Level 1 Level 2 Level 3 At December 31, 2023 Financial Assets Held-to-maturity debt securities 1 $ 680,313 $ — $ 558,359 $ — Time deposits with other banks 5,857 — 5,756 — Loans, net 9,898,767 — — 9,805,693 Financial Liabilities Deposits 11,776,935 — — 11,775,613 FHLB borrowings 50,000 — 49,745 — Long-term debt 109,458 — 100,851 — At December 31, 2022 Financial Assets Held-to-maturity debt securities 1 $ 747,408 $ — $ 617,741 $ — Time deposits with other banks 3,236 — 2,989 — Loans, net 8,022,316 — — 7,845,375 Financial Liabilities Deposits 9,981,595 — — 9,976,125 FHLB borrowings 150,000 — — 149,450 Long-term debt 84,533 — 82,226 — 1 See “Note 3 - Securities” for further detail of recurring fair value basis of individual investment categories.

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2023
Business Combinations [Abstract]
Summary of Purchase Price Calculation	(In thousands, except per share data) January 31, 2023 Number of Professional common shares outstanding 14,358 Per share exchange ratio 0.8909 Number of shares of SBCF common stock issued 12,792 Multiplied by common stock price per share at January 31, 2023 $ 32.11 Value of SBCF common stock issued $ 410,738 Cash paid for fractional shares 5 Fair value of Professional options converted 10,304 Total purchase price $ 421,047 (In thousands, except per share data) October 7, 2022 Number of Apollo common shares outstanding 3,766 Per share exchange ratio 1.0065 Number of shares of SBCF common stock issued 3,791 Number of Apollo Bank minority interest shares outstanding 609 Per share exchange ratio 1.1957 Number of shares of SBCF common stock issued 728 Total number of shares of SBCF common stock issued 4,519 Multiplied by common stock price per share at October 7, 2022 $ 30.83 Value of SBCF common stock issued $ 139,307 Cash paid for fractional shares 5 Fair value of Apollo options and warrants converted 6,530 Total purchase price $ 145,842 (In thousands, except per share data) October 7, 2022 Number of Drummond common shares outstanding 99 Per share exchange ratio 51.9561 Number of shares of SBCF common stock issued 5,136 Multiplied by common stock price per share at October 7, 2022 $ 30.83 Total purchase price $ 158,332 (In thousands, except per share data) January 3, 2022 Number of BBFC common shares outstanding 1,112 Per share exchange ratio 0.7997 Number of shares of SBCF common stock issued 889 Multiplied by common stock price per share on January 3, 2022 $ 35.39 Value of SBCF common stock issued $ 31,480 Fair value of BBFC options converted 497 Total purchase price $ 31,977 (In thousands, except per share data) January 3, 2022 Number of Sabal Palm common shares outstanding 7,536 Per share exchange ratio 0.2203 Number of shares of SBCF common stock issued 1,660 Multiplied by common stock price per share on January 3, 2022 $ 35.39 Value of SBCF common stock issued $ 58,762 Fair value of Sabal Palm options converted 3,336 Total purchase price $ 62,098
Schedule of Business Acquisitions	Initially Measured Measurement As Adjusted (In thousands) January 31, 2023 Period Adjustments January 31, 2023 Assets: Cash and cash equivalents $ 141,680 $ — $ 141,680 Investment securities 167,059 — 167,059 Loans 1,991,713 (5,544) 1,986,169 Bank premises and equipment 2,478 — 2,478 Core deposit intangibles 48,885 — 48,885 Goodwill 248,091 3,583 251,674 BOLI 55,071 — 55,071 Other Assets 74,232 2,561 76,793 Total Assets $ 2,729,209 $ 600 $ 2,729,809 Liabilities: Deposits $ 2,119,341 $ — $ 2,119,341 Subordinated debt 21,141 — 21,141 Other Liabilities 167,680 600 168,280 Total Liabilities $ 2,308,162 $ 600 $ 2,308,762 Initially Measured Measurement As Adjusted (In thousands) October 7, 2022 Period Adjustments October 7, 2022 Assets: Cash and cash equivalents $ 41,001 $ — $ 41,001 Investment securities 203,596 — 203,596 Loans 666,522 — 666,522 Bank premises and equipment 7,809 — 7,809 Core deposit intangibles 28,699 — 28,699 Goodwill 90,237 251 90,488 Other Assets 52,724 (251) 52,473 Total Assets $ 1,090,588 $ — $ 1,090,588 Liabilities: Deposits $ 854,774 $ — $ 854,774 Other Liabilities 89,972 — 89,972 Total Liabilities $ 944,746 $ — $ 944,746 Initially Measured Measurement As Adjusted (In thousands) October 7, 2022 Period Adjustments October 7, 2022 Assets: Cash and cash equivalents $ 31,805 $ — $ 31,805 Investment securities 327,852 — 327,852 Loans 544,694 — 544,694 Bank premises and equipment 29,370 — 29,370 Core deposit and other intangibles 32,983 — 32,983 Goodwill 103,476 173 103,649 Other Assets 49,812 (173) 49,639 Total Assets $ 1,119,992 $ — $ 1,119,992 Liabilities: Deposits $ 881,281 $ — $ 881,281 Other Liabilities 80,379 — 80,379 Total Liabilities $ 961,660 $ — $ 961,660 (In thousands) Measured Assets: Cash $ 38,332 Investment securities 26,011 Loans 121,774 Bank premises and equipment 2,102 Core deposit intangibles 2,621 Goodwill 7,962 Total assets $ 198,802 Liabilities: Deposits 166,326 Other liabilities 499 Total liabilities $ 166,825 (In thousands) Measured Assets: Cash $ 170,609 Time deposits with other banks 6,473 Loans 246,152 Bank premises and equipment 1,745 Core deposit intangibles 5,587 Goodwill 26,489 Other Assets 5,189 Total assets $ 462,244 Liabilities: Deposits 395,952 Other liabilities 4,194 Total liabilities $ 400,146
Schedule of Fair Value of Acquired Loans and Unpaid Principal Balance	The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. January 31, 2023 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 156,048 $ 151,012 Commercial real estate - owner occupied 293,473 274,068 Commercial real estate - non-owner occupied 752,393 692,746 Residential real estate 509,305 483,611 Commercial and financial 392,396 350,628 Consumer 33,656 32,153 PPP Loans 1,951 1,951 Total acquired loans $ 2,139,222 $ 1,986,169 The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. October 7, 2022 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 74,126 $ 70,654 Commercial real estate - owner-occupied 131,093 121,600 Commercial real estate - non owner-occupied 374,673 340,561 Residential real estate 76,254 75,957 Commercial and financial 50,125 46,695 Consumer 11,307 11,055 Total acquired loans $ 717,578 $ 666,522 The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. October 7, 2022 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 155,041 $ 140,401 Commercial real estate - owner-occupied 112,768 106,152 Commercial real estate - non owner-occupied 26,520 24,744 Residential real estate 85,767 78,663 Commercial and financial 88,026 82,067 Consumer 118,880 112,667 Total acquired loans $ 587,002 $ 544,694 The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. January 3, 2022 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 8,677 $ 8,414 Commercial real estate - owner-occupied 45,403 44,564 Commercial real estate - non owner-occupied 53,065 52,034 Residential real estate 5,377 5,421 Commercial and financial 11,335 11,280 Consumer 59 61 Total acquired loans $ 123,916 $ 121,774 The table below presents information with respect to the fair value and unpaid principal balance of acquired loans at the acquisition date. January 3, 2022 (In thousands) Book Balance Fair Value Loans: Construction and land development $ 9,256 $ 9,009 Commercial real estate - owner-occupied 57,690 56,591 Commercial real estate - non owner-occupied 89,153 87,280 Residential real estate 71,469 72,227 Commercial and financial 21,109 20,813 Consumer 233 232 Total acquired loans $ 248,910 $ 246,152
Schedule Purchase Credit Deteriorated Loans Acquired	The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) January 31, 2023 Book balance of loans at acquisition $ 155,031 Allowance for credit losses at acquisition (18,879) Non-credit related discount (12,361) Total PCD loans acquired $ 123,791 The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) October 7, 2022 Book balance of loans at acquisition $ 107,744 Allowance for credit losses at acquisition (2,658) Non-credit related discount (14,191) Total PCD loans acquired $ 90,895 The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) October 7, 2022 Book balance of loans at acquisition $ 58,878 Allowance for credit losses at acquisition (2,566) Non-credit related discount (4,607) Total PCD loans acquired $ 51,705 The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) January 3, 2022 Book balance of loans at acquisition $ 714 Allowance for credit losses at acquisition (15) Non-credit related discount (48) Total PCD loans acquired $ 651 The table below presents the carrying amount of loans for which, at the date of acquisition, there was evidence of more than insignificant deterioration of credit quality since origination: (In thousands) January 3, 2022 Book balance of loans at acquisition $ 3,703 Allowance for credit losses at acquisition (37) Non-credit related discount (663) Total PCD loans acquired $ 3,003
Summary of Pro-Forma Data	Pro-forma data as of 2023 and 2022 present information as if the acquisition of Professional occurred at the beginning of 2022. The pro-forma information is presented for illustrative purposes only and is not necessarily indicative of the results of operations that would have occurred if the transactions had been effected on the assumed dates. Twelve Months Ended December 31, (In thousands, except per share data) 2023 2022 Net interest income $ 499,008 $ 488,143 Net income available to common shareholders 128,086 107,398 EPS - basic 1.51 1.40 EPS - diluted 1.50 1.39

Significant Accounting Polici_3

Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 operating_segment
Accounting Policies [Line Items]
Number of operating segments	1
Stock options
Accounting Policies [Line Items]
Vesting period	5 years
Restricted Stock Units
Accounting Policies [Line Items]
Vesting period	3 years
Customer Relationships
Accounting Policies [Line Items]
Intangible assets, useful life	10 years
Minimum | Core Deposits
Accounting Policies [Line Items]
Intangible assets, useful life	6 years
Maximum | Core Deposits
Accounting Policies [Line Items]
Intangible assets, useful life	8 years
Building | Minimum
Accounting Policies [Line Items]
Bank premises and equipment, useful life	25 years
Building | Maximum
Accounting Policies [Line Items]
Bank premises and equipment, useful life	40 years
Leasehold Improvements | Minimum
Accounting Policies [Line Items]
Bank premises and equipment, useful life	5 years
Leasehold Improvements | Maximum
Accounting Policies [Line Items]
Bank premises and equipment, useful life	25 years
Furniture and equipment | Minimum
Accounting Policies [Line Items]
Bank premises and equipment, useful life	3 years
Furniture and equipment | Maximum
Accounting Policies [Line Items]
Bank premises and equipment, useful life	12 years

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of 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]
Shares excluded from computation of diluted EPS (in shares)	344,230	1,505	0
Basic earnings per share
Net Income	$ 104,033	$ 106,507	$ 124,403
Total weighted average common stock outstanding (in shares)	83,800,000	63,707,000	56,586,000
Net income per share (in dollars per share)	$ 1.24	$ 1.67	$ 2.20
Diluted earnings per share
Net Income	$ 104,033	$ 106,507	$ 124,403
Total weighted average common stock outstanding (in shares)	83,800,000	63,707,000	56,586,000
Add: Dilutive effect of share-based awards outstanding (in shares)	529,000	557,000	502,000
Total weighted average diluted stock outstanding (in shares)	84,329,000	64,264,000	57,088,000
Net income per share (in dollars per share)	$ 1.23	$ 1.66	$ 2.18

Securities - Amortized Cost and

Securities - Amortized Cost and Fair Value of Securities Available for Sale and Held for Investment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt securities available-for-sale
Available for sale, amortized cost, total	$ 2,049,302	$ 2,119,303
Available for sale, gross unrealized gains	4,432	1,101
Available for sale, gross unrealized losses	(217,714)	(248,662)
Debt securities available-for-sale	1,836,020	1,871,742
Debt securities held-to-maturity
Held to maturity, amortized cost, total	680,313	747,408
Held to maturity, gross unrealized gains	0	64
Held to maturity, gross unrealized losses	(121,954)	(129,731)
Held to maturity, fair value	558,359	617,741
U.S. Treasury securities and obligations of U.S. government agencies
Debt securities available-for-sale
Available for sale, amortized cost, total	37,718	13,813
Available for sale, gross unrealized gains	205	173
Available for sale, gross unrealized losses	(478)	(339)
Debt securities available-for-sale	37,445	13,647
Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Debt securities available-for-sale
Available for sale, amortized cost, total	1,152,753	1,170,062
Available for sale, gross unrealized gains	780	539
Available for sale, gross unrealized losses	(184,152)	(196,272)
Debt securities available-for-sale	969,381	974,329
Debt securities held-to-maturity
Held to maturity, amortized cost, total	590,676	634,300
Held to maturity, gross unrealized gains	0	64
Held to maturity, gross unrealized losses	(111,746)	(116,711)
Held to maturity, fair value	478,930	517,653
Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Debt securities available-for-sale
Available for sale, amortized cost, total	385,013	391,135
Available for sale, gross unrealized gains	2,824	0
Available for sale, gross unrealized losses	(19,565)	(26,811)
Debt securities available-for-sale	368,272	364,324
Debt securities held-to-maturity
Held to maturity, amortized cost, total	89,637	113,108
Held to maturity, gross unrealized gains	0	0
Held to maturity, gross unrealized losses	(10,208)	(13,020)
Held to maturity, fair value	79,429	100,088
Private mortgage-backed securities and collateralized mortgage obligations
Debt securities available-for-sale
Available for sale, amortized cost, total	135,878	179,148
Available for sale, gross unrealized gains	36	70
Available for sale, gross unrealized losses	(10,911)	(12,831)
Debt securities available-for-sale	125,003	166,387
Collateralized loan obligations
Debt securities available-for-sale
Available for sale, amortized cost, total	300,855	313,155
Available for sale, gross unrealized gains	11	0
Available for sale, gross unrealized losses	(1,411)	(10,251)
Debt securities available-for-sale	299,455	302,904
Obligations of state and political subdivisions
Debt securities available-for-sale
Available for sale, amortized cost, total	10,486	29,350
Available for sale, gross unrealized gains	0	122
Available for sale, gross unrealized losses	(1,096)	(1,731)
Debt securities available-for-sale	9,390	27,741
Other debt securities
Debt securities available-for-sale
Available for sale, amortized cost, total	26,599	22,640
Available for sale, gross unrealized gains	576	197
Available for sale, gross unrealized losses	(101)	(427)
Debt securities available-for-sale	$ 27,074	$ 22,410

Securities - Narrative (Details

Securities - Narrative (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jan. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Proceeds from sale of available-for-sale debt securities, including legacy securities			$ 515,200,000	$ 102,100,000
Gross gains from sale of securities				300,000
Gross losses from sale of securities				600,000
Unrealized losses		$ 217,714,000	248,662,000
Fair value of mortgage backed securities of government sponsored entities		1,669,656,000	1,812,522,000
Held-to-maturity securities, allowance for credit loss		0
Other assets of Federal Home Loan Bank and Federal Reserve Bank		67,700,000
Accrued interest receivable on AFS debt securities		7,900,000	7,000,000
Accrued interest receivable on HTM debt securities		$ 1,100,000	$ 1,300,000
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Other assets	Other assets
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Other assets	Other assets
Shares held (in shares)		84,861,498	71,617,852
Common Class B | Visa
Debt Securities, Available-for-sale [Line Items]
Shares held (in shares)		11,330
Common Class B | Visa | Subsequent Event
Debt Securities, Available-for-sale [Line Items]
Proceeds from sale of equity securities	$ 4,100,000
Asset Pledged as Collateral
Debt Securities, Available-for-sale [Line Items]
Securities pledged as collateral		$ 1,700,000,000
Other debt securities
Debt Securities, Available-for-sale [Line Items]
Proceeds from sale of available-for-sale debt securities, including legacy securities		113,400,000
Gross gains from sale of securities		25,000
Gross losses from sale of securities		3,000,000
Unrealized losses		101,000	$ 427,000
Fair value of mortgage backed securities of government sponsored entities		10,579,000	11,459,000
CRA - qualified debt securities
Debt Securities, Available-for-sale [Line Items]
Gross gains from sale of securities		42,000
Gross losses from sale of securities			1,100,000	$ 200,000
Equity securities		13,600,000	8,200,000
Mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Debt Securities, Available-for-sale [Line Items]
Unrealized losses		203,700,000
Fair value of mortgage backed securities of government sponsored entities		1,200,000,000
Allowance for credit losses on AFS debt securities		0
Private mortgage-backed securities and collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Unrealized losses		10,911,000	12,831,000
Fair value of mortgage backed securities of government sponsored entities		123,420,000	155,722,000
Allowance for credit losses on AFS debt securities		$ 0
Average credit support percentage		23%
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Unrealized losses		$ 1,411,000	10,251,000
Fair value of mortgage backed securities of government sponsored entities		292,632,000	302,904,000
Allowance for credit losses on AFS debt securities		$ 0
Collateralized loan obligations | Standard & Poor's, AAA Rating
Debt Securities, Available-for-sale [Line Items]
Number of positions held, percentage of total		35%
Collateralized loan obligations | Standard & Poor's, AA Rating
Debt Securities, Available-for-sale [Line Items]
Number of positions held, percentage of total		26%
Obligations of state and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Unrealized losses		$ 1,096,000	1,731,000
Fair value of mortgage backed securities of government sponsored entities		9,390,000	$ 24,229,000
Allowance for credit losses on AFS debt securities		$ 0

Securities - Amortized Cost a_2

Securities - Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Amortized Cost
Due in less than one year	$ 0
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	0
Held to maturity loans with maturity date, amortized cost, total	0
Held to maturity, amortized cost, total	680,313	$ 747,408
Fair Value
Due in less than one year	0
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	0
Held to maturity loans with maturity date, fair value, total	0
Held to maturity, fair value	558,359	617,741
Amortized Cost
Due in less than one year	4,537
Due after one year through five years	6,066
Due after five years through ten years	9,465
Due after ten years	28,136
Available for sale loans with maturity date, amortized cost, total	48,204
Available for sale, amortized cost, total	2,049,302	2,119,303
Fair Value
Due in less than one year	4,504
Due after one year through five years	6,069
Due after five years through ten years	9,362
Due after ten years	26,900
Available for sale loans with maturity date, fair value, total	46,835
Securities available-for-sale (at fair value)	1,836,020	1,871,742
Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Amortized Cost
Loans without single maturity date	590,676
Held to maturity, amortized cost, total	590,676	634,300
Fair Value
Loans without single maturity date	478,930
Held to maturity, fair value	478,930	517,653
Amortized Cost
Loans without single maturity date	1,152,753
Available for sale, amortized cost, total	1,152,753	1,170,062
Fair Value
Loans without single maturity date	969,381
Securities available-for-sale (at fair value)	969,381	974,329
Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Amortized Cost
Loans without single maturity date	89,637
Held to maturity, amortized cost, total	89,637	113,108
Fair Value
Loans without single maturity date	79,429
Held to maturity, fair value	79,429	100,088
Amortized Cost
Loans without single maturity date	385,013
Available for sale, amortized cost, total	385,013	391,135
Fair Value
Loans without single maturity date	368,272
Securities available-for-sale (at fair value)	368,272	364,324
Private mortgage-backed securities and collateralized mortgage obligations
Amortized Cost
Loans without single maturity date	0
Fair Value
Loans without single maturity date	0
Amortized Cost
Loans without single maturity date	135,878
Available for sale, amortized cost, total	135,878	179,148
Fair Value
Loans without single maturity date	125,003
Securities available-for-sale (at fair value)	125,003	166,387
Collateralized loan obligations
Amortized Cost
Loans without single maturity date	0
Fair Value
Loans without single maturity date	0
Amortized Cost
Loans without single maturity date	300,855
Available for sale, amortized cost, total	300,855	313,155
Fair Value
Loans without single maturity date	299,455
Securities available-for-sale (at fair value)	299,455	302,904
Other debt securities
Amortized Cost
Loans without single maturity date	0
Fair Value
Loans without single maturity date	0
Amortized Cost
Loans without single maturity date	26,599
Available for sale, amortized cost, total	26,599	22,640
Fair Value
Loans without single maturity date	27,074
Securities available-for-sale (at fair value)	$ 27,074	$ 22,410

Securities - Schedule of Unreal

Securities - Schedule of Unrealized Loss and Fair Value on Investments (Details) $ in Thousands	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Fair Value
Less Than 12 Months	$ 215,988	$ 1,058,561
12 Months or Longer	1,453,668	753,961
Total	1,669,656	1,812,522
Unrealized Losses
Less Than 12 Months	(11,128)	(73,965)
12 Months or Longer	(206,586)	(174,697)
Total	$ (217,714)	$ (248,662)
Number of individual securities | security	504	420
Residential mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Fair Value
Less Than 12 Months	$ 91,867	$ 304,732
12 Months or Longer	826,324	645,115
Total	918,191	949,847
Unrealized Losses
Less Than 12 Months	(9,320)	(33,401)
12 Months or Longer	(174,832)	(162,870)
Total	(184,152)	(196,271)
Collateralized loan obligations
Fair Value
Less Than 12 Months	60,087	242,370
12 Months or Longer	232,545	60,534
Total	292,632	302,904
Unrealized Losses
Less Than 12 Months	(223)	(8,343)
12 Months or Longer	(1,188)	(1,908)
Total	(1,411)	(10,251)
Commercial mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Fair Value
Less Than 12 Months	24,251	341,920
12 Months or Longer	262,666	22,404
Total	286,917	364,324
Unrealized Losses
Less Than 12 Months	(1,270)	(21,555)
12 Months or Longer	(18,295)	(5,257)
Total	(19,565)	(26,812)
Private mortgage-backed securities and collateralized mortgage obligations
Fair Value
Less Than 12 Months	3,945	130,488
12 Months or Longer	119,475	25,234
Total	123,420	155,722
Unrealized Losses
Less Than 12 Months	(69)	(8,255)
12 Months or Longer	(10,842)	(4,576)
Total	(10,911)	(12,831)
U.S. Treasury securities and obligations of U.S. government agencies
Fair Value
Less Than 12 Months	24,933	3,788
12 Months or Longer	3,594	249
Total	28,527	4,037
Unrealized Losses
Less Than 12 Months	(143)	(328)
12 Months or Longer	(335)	(11)
Total	(478)	(339)
Other debt securities
Fair Value
Less Than 12 Months	10,579	11,459
12 Months or Longer	0	0
Total	10,579	11,459
Unrealized Losses
Less Than 12 Months	(101)	(427)
12 Months or Longer	0	0
Total	(101)	(427)
Obligations of state and political subdivisions
Fair Value
Less Than 12 Months	326	23,804
12 Months or Longer	9,064	425
Total	9,390	24,229
Unrealized Losses
Less Than 12 Months	(2)	(1,656)
12 Months or Longer	(1,094)	(75)
Total	$ (1,096)	$ (1,731)

Loans - Schedule of Portfolio L

Loans - Schedule of Portfolio Loans, Purchased Credit Impaired Loans and Purchased Unimpaired Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 10,062,940	$ 8,144,724
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	767,622	587,332
Commercial real estate - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,670,281	1,478,302
Commercial real estate - non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,319,890	2,589,774
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,445,692	1,849,503
Commercial and financial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,607,888	1,353,225
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	251,567	286,587
Acquired Non-PCD Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,227,169	1,965,749
Acquired Non-PCD Loans | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	247,654	201,333
Acquired Non-PCD Loans | Commercial real estate - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	552,627	451,202
Acquired Non-PCD Loans | Commercial real estate - non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,323,222	767,138
Acquired Non-PCD Loans | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	710,129	271,378
Acquired Non-PCD Loans | Commercial and financial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	318,683	185,240
Acquired Non-PCD Loans | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	74,854	89,458
PCD Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	264,317	234,782
PCD Loans | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	542	21,100
PCD Loans | Commercial real estate - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	38,021	31,946
PCD Loans | Commercial real estate - non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	152,080	127,225
PCD Loans | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	20,815	19,482
PCD Loans | Commercial and financial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	52,115	15,238
PCD Loans | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	744	19,791
Portfolio Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	6,571,454	5,944,193
Portfolio Loans | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	519,426	364,900
Portfolio Loans | Commercial real estate - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,079,633	995,154
Portfolio Loans | Commercial real estate - non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,844,588	1,695,411
Portfolio Loans | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,714,748	1,558,643
Portfolio Loans | Commercial and financial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,237,090	1,152,747
Portfolio Loans | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 175,969	$ 177,338

Loans - Narrative (Details)

Loans - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) Loan	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Financing Receivable, Modified [Line Items]
Net deferred costs	$ 43,100	$ 35,100
Accrued interest receivable	39,400	28,200
Loans	$ 10,062,940	8,144,724
New loans | Loan	0
Interest income on nonaccrual loans	$ 500	1,600	$ 1,200
Related Party
Financing Receivable, Modified [Line Items]
Loans	300	400
Loans
Financing Receivable, Modified [Line Items]
Remaining fair value adjustment for loans acquired	$ 174,000	$ 97,700
Percentage of fair value adjustment for loans acquired	4.80%	4.30%
Residential real estate
Financing Receivable, Modified [Line Items]
Loans	$ 2,445,692	$ 1,849,503
Commercial real estate - non-owner occupied
Financing Receivable, Modified [Line Items]
Loans	$ 3,319,890	$ 2,589,774

Loans - Past Due Financing Rece

Loans - Past Due Financing Receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Loans	$ 10,062,940	$ 8,144,724
Nonaccrual	65,104	28,843
Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	3,227,169	1,965,749
Nonaccrual	14,256	2,630
PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	264,317	234,782
Nonaccrual	25,976	10,563
Current
Financing Receivable, Past Due [Line Items]
Loans	9,967,309	8,104,803
Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	3,192,780	1,958,490
Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	237,328	222,282
Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	25,257	6,929
Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	17,363	3,104
Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	682	1,038
Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	4,091	2,301
Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,964	1,000
Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	177	359
Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	1,179	1,848
Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	806	525
Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	154	540
Construction and land development
Financing Receivable, Past Due [Line Items]
Loans	767,622	587,332
Nonaccrual	824	615
Construction and land development | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	247,654	201,333
Nonaccrual	800	70
Construction and land development | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	542	21,100
Nonaccrual	0	420
Construction and land development | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	245,674	201,263
Construction and land development | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	442	20,680
Construction and land development | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	891	0
Construction and land development | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	100	0
Construction and land development | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	289	0
Construction and land development | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Construction and land development | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Construction and land development | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - owner occupied
Financing Receivable, Past Due [Line Items]
Loans	1,670,281	1,478,302
Nonaccrual	9,684	2,597
Commercial real estate - owner occupied | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	552,627	451,202
Nonaccrual	5,429	0
Commercial real estate - owner occupied | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	38,021	31,946
Nonaccrual	3,354	1,383
Commercial real estate - owner occupied | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	545,374	450,109
Commercial real estate - owner occupied | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	34,667	30,517
Commercial real estate - owner occupied | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,691	796
Commercial real estate - owner occupied | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	23
Commercial real estate - owner occupied | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	133	297
Commercial real estate - owner occupied | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	23
Commercial real estate - owner occupied | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - owner occupied | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - non-owner occupied
Financing Receivable, Past Due [Line Items]
Loans	3,319,890	2,589,774
Nonaccrual	8,735	4,184
Commercial real estate - non-owner occupied | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,323,222	767,138
Nonaccrual	1,545	1,343
Commercial real estate - non-owner occupied | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	152,080	127,225
Nonaccrual	3,772	3,110
Commercial real estate - non-owner occupied | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,310,100	765,633
Commercial real estate - non-owner occupied | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	148,308	124,115
Commercial real estate - non-owner occupied | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	11,577	162
Commercial real estate - non-owner occupied | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - non-owner occupied | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - non-owner occupied | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - non-owner occupied | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - non-owner occupied | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans	2,445,692	1,849,503
Nonaccrual	9,986	9,109
Residential real estate | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	710,129	271,378
Nonaccrual	2,085	586
Residential real estate | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	20,815	19,482
Nonaccrual	1,072	1,587
Residential real estate | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	704,417	270,215
Residential real estate | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	18,923	17,885
Residential real estate | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	2,586	577
Residential real estate | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	497	10
Residential real estate | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	888	0
Residential real estate | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	169	0
Residential real estate | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	153	0
Residential real estate | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	154	0
Commercial and financial
Financing Receivable, Past Due [Line Items]
Loans	1,607,888	1,353,225
Nonaccrual	34,693	11,615
Commercial and financial | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	318,683	185,240
Nonaccrual	3,333	410
Commercial and financial | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	52,115	15,238
Nonaccrual	17,778	4,033
Commercial and financial | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	315,229	183,953
Commercial and financial | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	34,337	11,201
Commercial and financial | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	50	790
Commercial and financial | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	4
Commercial and financial | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	36	87
Commercial and financial | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial and financial | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	35	0
Commercial and financial | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Loans	251,567	286,587
Nonaccrual	1,182	723
Consumer | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	74,854	89,458
Nonaccrual	1,064	221
Consumer | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	744	19,791
Nonaccrual	0	30
Consumer | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	71,986	87,317
Consumer | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	651	17,884
Consumer | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	568	779
Consumer | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	85	1,001
Consumer | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	618	616
Consumer | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	8	336
Consumer | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	618	525
Consumer | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	540
Portfolio Loans
Financing Receivable, Past Due [Line Items]
Loans	6,571,454	5,944,193
Nonaccrual	24,872	15,650
Portfolio Loans | Current
Financing Receivable, Past Due [Line Items]
Loans	6,537,201	5,924,031
Portfolio Loans | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	7,212	2,787
Portfolio Loans | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,950	942
Portfolio Loans | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	219	783
Portfolio Loans | Construction and land development
Financing Receivable, Past Due [Line Items]
Loans	519,426	364,900
Nonaccrual	24	59
Portfolio Loans | Construction and land development | Current
Financing Receivable, Past Due [Line Items]
Loans	519,383	364,841
Portfolio Loans | Construction and land development | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	19	0
Portfolio Loans | Construction and land development | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Construction and land development | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Commercial real estate - owner occupied
Financing Receivable, Past Due [Line Items]
Loans	1,079,633	995,154
Nonaccrual	901	957
Portfolio Loans | Commercial real estate - owner occupied | Current
Financing Receivable, Past Due [Line Items]
Loans	1,078,732	993,690
Portfolio Loans | Commercial real estate - owner occupied | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Commercial real estate - owner occupied | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	67
Portfolio Loans | Commercial real estate - owner occupied | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	0	440
Portfolio Loans | Commercial real estate - non-owner occupied
Financing Receivable, Past Due [Line Items]
Loans	1,844,588	1,695,411
Nonaccrual	3,418	30
Portfolio Loans | Commercial real estate - non-owner occupied | Current
Financing Receivable, Past Due [Line Items]
Loans	1,840,485	1,695,381
Portfolio Loans | Commercial real estate - non-owner occupied | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	685	0
Portfolio Loans | Commercial real estate - non-owner occupied | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Commercial real estate - non-owner occupied | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans	1,714,748	1,558,643
Nonaccrual	6,829	7,284
Portfolio Loans | Residential real estate | Current
Financing Receivable, Past Due [Line Items]
Loans	1,701,862	1,550,040
Portfolio Loans | Residential real estate | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	4,373	1,172
Portfolio Loans | Residential real estate | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,515	147
Portfolio Loans | Residential real estate | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	169	0
Portfolio Loans | Commercial and financial
Financing Receivable, Past Due [Line Items]
Loans	1,237,090	1,152,747
Nonaccrual	13,582	7,229
Portfolio Loans | Commercial and financial | Current
Financing Receivable, Past Due [Line Items]
Loans	1,221,941	1,143,635
Portfolio Loans | Commercial and financial | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,372	1,065
Portfolio Loans | Commercial and financial | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	145	476
Portfolio Loans | Commercial and financial | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	50	342
Portfolio Loans | Consumer
Financing Receivable, Past Due [Line Items]
Loans	175,969	177,338
Nonaccrual	118	91
Portfolio Loans | Consumer | Current
Financing Receivable, Past Due [Line Items]
Loans	174,798	176,444
Portfolio Loans | Consumer | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	763	550
Portfolio Loans | Consumer | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	290	252
Portfolio Loans | Consumer | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	$ 0	$ 1

Loans - Schedule of Nonaccrual

Loans - Schedule of Nonaccrual Loans by Loan Category (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no related allowance for credit losses	$ 15,457	$ 17,755
Nonaccrual loans with allowance for credit losses	49,647	11,088
Nonaccrual loans with no related allowance for credit losses, total loans	65,104	28,843
Construction and land development
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no related allowance for credit losses	0	615
Nonaccrual loans with allowance for credit losses	824	0
Nonaccrual loans with no related allowance for credit losses, total loans	824	615
Commercial real estate - owner occupied
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no related allowance for credit losses	4,859	957
Nonaccrual loans with allowance for credit losses	4,825	1,641
Nonaccrual loans with no related allowance for credit losses, total loans	9,684	2,597
Commercial real estate - non-owner occupied
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no related allowance for credit losses	3,938	3,347
Nonaccrual loans with allowance for credit losses	4,797	837
Nonaccrual loans with no related allowance for credit losses, total loans	8,735	4,184
Residential real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no related allowance for credit losses	1,792	8,072
Nonaccrual loans with allowance for credit losses	8,194	1,036
Nonaccrual loans with no related allowance for credit losses, total loans	9,986	9,109
Commercial and financial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no related allowance for credit losses	4,868	4,724
Nonaccrual loans with allowance for credit losses	29,825	6,891
Nonaccrual loans with no related allowance for credit losses, total loans	34,693	11,615
Consumer
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no related allowance for credit losses	0	40
Nonaccrual loans with allowance for credit losses	1,182	683
Nonaccrual loans with no related allowance for credit losses, total loans	$ 1,182	$ 723

Loans - Credit Quality Indicato

Loans - Credit Quality Indicator of Loans by Class of Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	$ 974,245	$ 1,771,386
One year prior to current fiscal year	2,264,733	1,972,420
Two years prior to current fiscal year	2,112,263	752,699
Three years prior to current fiscal year	804,167	749,534
Four years prior to current fiscal year	797,510	545,447
Prior	2,015,489	1,469,313
Revolving	1,094,533	883,925
Total	10,062,940	8,144,724
Current fiscal year, Charge Offs	1,272
One year prior to current fiscal year, Charge Offs	2,027
Two years prior to current fiscal year, Charge Offs	2,888
Three years prior to current fiscal year, Charge Offs	3,413
Four years prior to current fiscal year, Charge Offs	845
Prior, Charge Offs	13,409
Revolving, Charge Offs	941
Total, Charge Offs	24,795	2,911	$ 6,098
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	80,750	237,727
One year prior to current fiscal year	296,450	219,469
Two years prior to current fiscal year	107,158	18,239
Three years prior to current fiscal year	20,199	27,753
Four years prior to current fiscal year	21,942	13,742
Prior	29,794	19,427
Revolving	211,329	50,975
Total	767,622	587,332
Current fiscal year, Charge Offs	0
One year prior to current fiscal year, Charge Offs	0
Two years prior to current fiscal year, Charge Offs	0
Three years prior to current fiscal year, Charge Offs	0
Four years prior to current fiscal year, Charge Offs	0
Prior, Charge Offs	0
Revolving, Charge Offs	0
Total, Charge Offs	0	0	0
Construction and land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	80,750	223,204
One year prior to current fiscal year	295,043	209,738
Two years prior to current fiscal year	107,158	18,239
Three years prior to current fiscal year	20,199	24,600
Four years prior to current fiscal year	21,942	12,783
Prior	28,902	19,022
Revolving	210,716	50,960
Total	764,710	558,546
Construction and land development | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	14,523
One year prior to current fiscal year	1,407	452
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	3,153
Four years prior to current fiscal year	0	0
Prior	393	0
Revolving	289	15
Total	2,089	18,143
Construction and land development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	9,227
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	959
Prior	499	0
Revolving	324	0
Total	823	10,186
Construction and land development | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	52
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	405
Revolving	0	0
Total	0	457
Construction and land development | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial real estate - owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	145,642	216,147
One year prior to current fiscal year	278,567	251,638
Two years prior to current fiscal year	284,262	183,111
Three years prior to current fiscal year	172,466	192,625
Four years prior to current fiscal year	179,537	124,983
Prior	572,790	477,545
Revolving	37,017	32,253
Total	1,670,281	1,478,302
Current fiscal year, Charge Offs	0
One year prior to current fiscal year, Charge Offs	0
Two years prior to current fiscal year, Charge Offs	0
Three years prior to current fiscal year, Charge Offs	0
Four years prior to current fiscal year, Charge Offs	0
Prior, Charge Offs	0
Revolving, Charge Offs	0
Total, Charge Offs	0	0	0
Commercial real estate - owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	145,642	215,453
One year prior to current fiscal year	272,384	251,638
Two years prior to current fiscal year	281,870	180,081
Three years prior to current fiscal year	165,475	185,286
Four years prior to current fiscal year	171,897	121,568
Prior	551,177	467,963
Revolving	36,952	32,253
Total	1,625,397	1,454,242
Commercial real estate - owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	694
One year prior to current fiscal year	159	0
Two years prior to current fiscal year	1,335	2,363
Three years prior to current fiscal year	0	4,403
Four years prior to current fiscal year	524	2,548
Prior	9,122	2,869
Revolving	1	0
Total	11,141	12,877
Commercial real estate - owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	5,176	0
Two years prior to current fiscal year	1,041	667
Three years prior to current fiscal year	6,342	2,625
Four years prior to current fiscal year	7,113	573
Prior	4,387	4,444
Revolving	0	0
Total	24,059	8,309
Commercial real estate - owner occupied | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	848	0
Two years prior to current fiscal year	16	0
Three years prior to current fiscal year	649	311
Four years prior to current fiscal year	3	294
Prior	8,104	2,269
Revolving	64	0
Total	9,684	2,874
Commercial real estate - owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial real estate - non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	234,226	593,364
One year prior to current fiscal year	814,591	546,911
Two years prior to current fiscal year	668,314	252,787
Three years prior to current fiscal year	301,109	338,460
Four years prior to current fiscal year	407,458	233,622
Prior	867,988	589,304
Revolving	26,204	35,326
Total	3,319,890	2,589,774
Current fiscal year, Charge Offs	0
One year prior to current fiscal year, Charge Offs	0
Two years prior to current fiscal year, Charge Offs	11
Three years prior to current fiscal year, Charge Offs	0
Four years prior to current fiscal year, Charge Offs	0
Prior, Charge Offs	0
Revolving, Charge Offs	109
Total, Charge Offs	120	179	1,327
Commercial real estate - non-owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	234,226	593,364
One year prior to current fiscal year	784,525	530,462
Two years prior to current fiscal year	657,499	231,693
Three years prior to current fiscal year	288,747	331,173
Four years prior to current fiscal year	397,031	228,077
Prior	841,062	575,656
Revolving	25,954	35,326
Total	3,229,044	2,525,751
Commercial real estate - non-owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	29,381	16,257
Two years prior to current fiscal year	2,092	735
Three years prior to current fiscal year	2,964	5,438
Four years prior to current fiscal year	0	0
Prior	12,120	4,975
Revolving	0	0
Total	46,557	27,405
Commercial real estate - non-owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	685	192
Two years prior to current fiscal year	8,723	19,315
Three years prior to current fiscal year	8,332	0
Four years prior to current fiscal year	8,578	5,515
Prior	8,985	7,412
Revolving	250	0
Total	35,553	32,434
Commercial real estate - non-owner occupied | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	1,044
Three years prior to current fiscal year	1,066	1,849
Four years prior to current fiscal year	1,849	30
Prior	5,821	1,261
Revolving	0	0
Total	8,736	4,184
Commercial real estate - non-owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	177,303	270,054
One year prior to current fiscal year	450,366	552,950
Two years prior to current fiscal year	650,005	122,062
Three years prior to current fiscal year	161,012	77,132
Four years prior to current fiscal year	95,660	98,008
Prior	423,161	302,994
Revolving	488,185	426,303
Total	2,445,692	1,849,503
Current fiscal year, Charge Offs	0
One year prior to current fiscal year, Charge Offs	0
Two years prior to current fiscal year, Charge Offs	0
Three years prior to current fiscal year, Charge Offs	44
Four years prior to current fiscal year, Charge Offs	0
Prior, Charge Offs	159
Revolving, Charge Offs	153
Total, Charge Offs	356	84	57
Residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	177,000	270,054
One year prior to current fiscal year	450,366	552,950
Two years prior to current fiscal year	649,086	121,879
Three years prior to current fiscal year	160,889	77,100
Four years prior to current fiscal year	95,288	97,900
Prior	413,719	292,867
Revolving	479,047	423,764
Total	2,425,395	1,836,514
Residential real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	208	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	50
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	58	25
Prior	482	269
Revolving	4,004	884
Total	4,752	1,228
Residential real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	343
Revolving	1,824	85
Total	1,824	428
Residential real estate | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	95	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	919	133
Three years prior to current fiscal year	123	32
Four years prior to current fiscal year	314	83
Prior	8,960	9,515
Revolving	3,310	1,570
Total	13,721	11,333
Residential real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial and financial
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	315,696	361,082
One year prior to current fiscal year	356,796	323,562
Two years prior to current fiscal year	355,820	148,489
Three years prior to current fiscal year	129,454	84,487
Four years prior to current fiscal year	72,557	63,364
Prior	102,305	63,135
Revolving	275,260	309,106
Total	1,607,888	1,353,225
Current fiscal year, Charge Offs	1,198
One year prior to current fiscal year, Charge Offs	117
Two years prior to current fiscal year, Charge Offs	659
Three years prior to current fiscal year, Charge Offs	3,007
Four years prior to current fiscal year, Charge Offs	582
Prior, Charge Offs	12,584
Revolving, Charge Offs	418
Total, Charge Offs	18,565	1,233	3,987
Commercial and financial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	315,560	359,833
One year prior to current fiscal year	336,071	323,014
Two years prior to current fiscal year	333,113	142,332
Three years prior to current fiscal year	127,069	77,562
Four years prior to current fiscal year	66,165	57,924
Prior	89,002	58,648
Revolving	269,108	292,818
Total	1,536,088	1,312,131
Commercial and financial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	136	1,244
One year prior to current fiscal year	2,167	423
Two years prior to current fiscal year	1,064	106
Three years prior to current fiscal year	1,005	474
Four years prior to current fiscal year	503	195
Prior	1,103	259
Revolving	2,191	2,998
Total	8,169	5,699
Commercial and financial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	9,136	67
Two years prior to current fiscal year	10,810	942
Three years prior to current fiscal year	804	6,304
Four years prior to current fiscal year	1,002	1,603
Prior	3,340	1,683
Revolving	3,847	13,114
Total	28,939	23,713
Commercial and financial | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	5
One year prior to current fiscal year	9,422	58
Two years prior to current fiscal year	10,833	5,109
Three years prior to current fiscal year	576	147
Four years prior to current fiscal year	4,887	3,642
Prior	8,502	2,545
Revolving	114	176
Total	34,334	11,682
Commercial and financial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	358	0
Revolving	0	0
Total	358	0
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	20,628	93,012
One year prior to current fiscal year	67,963	77,889
Two years prior to current fiscal year	46,704	28,011
Three years prior to current fiscal year	19,927	29,077
Four years prior to current fiscal year	20,356	11,728
Prior	19,451	16,908
Revolving	56,538	29,962
Total	251,567	286,587
Current fiscal year, Charge Offs	74
One year prior to current fiscal year, Charge Offs	1,910
Two years prior to current fiscal year, Charge Offs	2,218
Three years prior to current fiscal year, Charge Offs	362
Four years prior to current fiscal year, Charge Offs	263
Prior, Charge Offs	666
Revolving, Charge Offs	261
Total, Charge Offs	5,754	1,415	$ 727
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	20,557	93,012
One year prior to current fiscal year	66,699	77,889
Two years prior to current fiscal year	45,534	27,982
Three years prior to current fiscal year	19,747	28,772
Four years prior to current fiscal year	20,300	11,690
Prior	19,080	16,480
Revolving	56,473	29,725
Total	248,390	285,550
Consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	5	0
One year prior to current fiscal year	334	0
Two years prior to current fiscal year	279	0
Three years prior to current fiscal year	77	250
Four years prior to current fiscal year	5	2
Prior	194	134
Revolving	65	30
Total	959	416
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	11
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	191
Revolving	0	0
Total	0	202
Consumer | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	66	0
One year prior to current fiscal year	930	0
Two years prior to current fiscal year	891	18
Three years prior to current fiscal year	103	55
Four years prior to current fiscal year	51	36
Prior	177	103
Revolving	0	207
Total	2,218	419
Consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year prior to current fiscal year	0	0
Two years prior to current fiscal year	0	0
Three years prior to current fiscal year	0	0
Four years prior to current fiscal year	0	0
Prior	0	0
Revolving	0	0
Total	$ 0	$ 0

Loans - Troubled Borrower Modif

Loans - Troubled Borrower Modifications (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Financing Receivable, Modified [Line Items]
Term Extension and/or Payment Delay	$ 17,517
% of Total Class of Loans	0.17%
Nonaccrual loans modified	$ 13,001
Loans modified	17,517
Current
Financing Receivable, Modified [Line Items]
Loans modified	4,006
Accruing 30-59 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified	211
Accruing 60-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified	156
Accruing Greater Than 90 Days
Financing Receivable, Modified [Line Items]
Loans modified	143
Residential real estate
Financing Receivable, Modified [Line Items]
Term Extension and/or Payment Delay	$ 818
% of Total Class of Loans	0.03%
Nonaccrual loans modified	$ 222
Loans modified	818
Residential real estate | Current
Financing Receivable, Modified [Line Items]
Loans modified	596
Residential real estate | Accruing 30-59 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified	0
Residential real estate | Accruing 60-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified	0
Residential real estate | Accruing Greater Than 90 Days
Financing Receivable, Modified [Line Items]
Loans modified	0
Commercial and financial
Financing Receivable, Modified [Line Items]
Term Extension and/or Payment Delay	$ 12,711
% of Total Class of Loans	0.79%
Nonaccrual loans modified	$ 12,467
Loans modified	12,711
Commercial and financial | Current
Financing Receivable, Modified [Line Items]
Loans modified	244
Commercial and financial | Accruing 30-59 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified	0
Commercial and financial | Accruing 60-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified	0
Commercial and financial | Accruing Greater Than 90 Days
Financing Receivable, Modified [Line Items]
Loans modified	0
Consumer
Financing Receivable, Modified [Line Items]
Term Extension and/or Payment Delay	$ 3,988
% of Total Class of Loans	1.59%
Nonaccrual loans modified	$ 312
Loans modified	3,988
Consumer | Current
Financing Receivable, Modified [Line Items]
Loans modified	3,166
Consumer | Accruing 30-59 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified	211
Consumer | Accruing 60-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified	156
Consumer | Accruing Greater Than 90 Days
Financing Receivable, Modified [Line Items]
Loans modified	$ 143

Allowance for Credit Losses - A

Allowance for Credit Losses - Activity in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 113,895	$ 83,315	$ 92,733
Initial Allowance on PCD Loans Acquired During the Period	18,879	5,275	3,046
Provision for Credit Losses	37,518	26,183	(9,421)
Charge- Offs	(24,795)	(2,911)	(6,098)
Recoveries	3,434	2,070	3,071
TDR Allowance Adjustments		(37)	(16)
Ending Balance	148,931	113,895	83,315
Construction and land development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	6,464	2,751	4,920
Initial Allowance on PCD Loans Acquired During the Period	5	518	0
Provision for Credit Losses	2,160	3,127	(2,300)
Charge- Offs	0	0	0
Recoveries	8	68	133
TDR Allowance Adjustments		0	(2)
Ending Balance	8,637	6,464	2,751
Commercial real estate - owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	6,051	8,579	9,868
Initial Allowance on PCD Loans Acquired During the Period	139	38	0
Provision for Credit Losses	(663)	(2,566)	(1,289)
Charge- Offs	0	0	0
Recoveries	2	0	0
TDR Allowance Adjustments		0	0
Ending Balance	5,529	6,051	8,579
Commercial real estate - non-owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	43,258	36,617	38,266
Initial Allowance on PCD Loans Acquired During the Period	647	880	1,327
Provision for Credit Losses	4,315	5,871	(1,664)
Charge- Offs	(120)	(179)	(1,327)
Recoveries	188	69	15
TDR Allowance Adjustments		0	0
Ending Balance	48,288	43,258	36,617
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	29,605	12,811	17,500
Initial Allowance on PCD Loans Acquired During the Period	400	229	0
Provision for Credit Losses	8,858	16,284	(5,822)
Charge- Offs	(356)	(84)	(57)
Recoveries	509	393	1,196
TDR Allowance Adjustments		(28)	(6)
Ending Balance	39,016	29,605	12,811
Commercial and financial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	15,648	19,744	18,690
Initial Allowance on PCD Loans Acquired During the Period	17,527	1,699	1,719
Provision for Credit Losses	17,644	(5,367)	2,292
Charge- Offs	(18,565)	(1,233)	(3,987)
Recoveries	2,089	807	1,030
TDR Allowance Adjustments		(2)	0
Ending Balance	34,343	15,648	19,744
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	12,869	2,813	3,489
Initial Allowance on PCD Loans Acquired During the Period	161	1,911	0
Provision for Credit Losses	5,204	8,834	(638)
Charge- Offs	(5,754)	(1,415)	(727)
Recoveries	638	733	697
TDR Allowance Adjustments		(7)	(8)
Ending Balance	$ 13,118	$ 12,869	$ 2,813

Allowance for Credit Losses - N

Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-Offs		$ 24,795	$ 2,911	$ 6,098
Commercial and financial
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-Offs		$ 18,565	$ 1,233	$ 3,987
Financial Asset Acquired, Fully Reserved | Commercial and financial
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-Offs	$ 11,300

Derivatives - Narrative (Detail

Derivatives - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Interest Rate Floor
Derivative [Line Items]
Reclassification from AOCI into income	$ 500	$ 400
Gain (loss) recognized in OCI		$ 300
Securities fair value hedges
Derivative [Line Items]
Fair value hedge gain (loss)	2,600
Fair value hedge gain (loss) reclassified	35
Residential mortgage fair value hedges
Derivative [Line Items]
Gain (loss) on derivative instruments	$ 16

Derivatives - Schedule of Deriv

Derivatives - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Back-to-back swaps
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	$ 605,735	$ 312,808
Fair Value	28,804	23,140
Risk Participation Agreements
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	9,400
Securities fair value hedges | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	400,000
Fair Value	2,677
Residential mortgage fair value hedges | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount	200,000
Fair Value	$ 75
Interest rate floors
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount		300,000
Fair Value		$ 2

Derivatives - Fair Value Hedges

Derivatives - Fair Value Hedges (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Securities available-for-sale
Derivative [Line Items]
Carrying amount of the hedged items at December 31,	$ 584,108	$ 0
Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged items at December 31,	2,643	0
Amortized cost basis and unallocated basis adjustments used in hedging relationships	680,600	0
Loans, net
Derivative [Line Items]
Carrying amount of the hedged items at December 31,	633,693	0
Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged items at December 31,	44	0
Amortized cost basis and unallocated basis adjustments used in hedging relationships	200,000	0
Portfolio layer method amount designated as hedged	$ 200,000	$ 0

Bank Premises and Equipment - S

Bank Premises and Equipment - Summary of Bank Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Cost	$ 181,280	$ 178,801
Accumulated Depreciation & Amortization	(67,976)	(61,909)
Net Carrying Value	113,304	116,892
Land	35,588	37,516
Premises
Property, Plant and Equipment [Line Items]
Cost	138,773	138,447
Accumulated Depreciation & Amortization	(36,500)	(33,037)
Net Carrying Value	102,273	105,410
Furniture and equipment
Property, Plant and Equipment [Line Items]
Cost	42,507	40,354
Accumulated Depreciation & Amortization	(31,476)	(28,872)
Net Carrying Value	$ 11,031	$ 11,482

Goodwill and Acquired Intangi_3

Goodwill and Acquired Intangible Assets - Changes In Carrying Amount Of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Beginning of year	$ 480,319	$ 252,154	$ 221,176
Changes from business combinations	252,098	228,165	30,978
Total	$ 732,417	$ 480,319	$ 252,154

Goodwill and Acquired Intangi_4

Goodwill and Acquired Intangible Assets - Gross Carrying Amount and Accumulated Amortization of Intangible Asset (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-lived Intangible Assets [Roll Forward]
Beginning of year	$ 71,285	$ 12,998	$ 14,577
Acquired CDI, including measurement period adjustments	49,143	67,388	3,454
Amortization expense	(28,726)	(9,101)	(5,033)
End of year	$ 91,702	$ 71,285	$ 12,998

Goodwill and Acquired Intangi_5

Goodwill and Acquired Intangible Assets - Acquired Intangible Assets Consist of Core Deposit Intangibles (Details) - Core deposit intangible - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 135,212	$ 97,778
Accumulated Amortization	$ (43,511)	$ (26,493)

Goodwill and Acquired Intangi_6

Goodwill and Acquired Intangible Assets - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Estimated amortization expense, next year	$ 23.6
Estimated amortization expense in two years	19.9
Estimated amortization expense in three years	16.4
Estimated amortization expense in four years	13
Estimated amortization expense in five years	9.3
Mortgage service rights retained from sale of SBA	$ 1.7	$ 1.7
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	10 years
Customer Relationships | Drummond Banking Company
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2.6
Accumulated amortization	$ 0.3
Intangible assets, useful life	10 years

Borrowings - Federal Funds Purc

Borrowings - Federal Funds Purchased and Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Maximum amount outstanding at any month end	$ 374,573	$ 172,029
Weighted average interest rate at end of year	3.48%	1.89%
Average amount outstanding	$ 270,999	$ 121,318
Weighted average interest rate during the year	3.07%	0.81%

Borrowings - Schedule of Collat

Borrowings - Schedule of Collateral Type and Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Short-term Debt [Line Items]
Fair value of pledged securities - overnight and continuous:	$ 396,378	$ 184,967

Borrowings - Narrative (Details

Borrowings - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Secured lines of credit	$ 4,500,000
FHLB borrowings	$ 50,000	$ 150,000
Average interest rate on Federal Home Loan Bank borrowings	3.64%
Weighted average interest rate on balances outstanding	3.23%
Subordinated Debt
Debt Instrument [Line Items]
Debt	$ 25,000	$ 12,300
Interest rate	3.375%	5.50%
Fair value adjustment	$ (3,900)	$ 400
Subordinated Debt | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	2.03%	5.33%
Federal Reserve Bank Advances
Debt Instrument [Line Items]
Secured lines of credit	$ 2,800,000
Federal Home Loan Bank Advances
Debt Instrument [Line Items]
Secured lines of credit	1,700,000
Trust I & II
Debt Instrument [Line Items]
Junior subordinated deferrable interest notes issued	41,200
SBCF Statutory Trust III
Debt Instrument [Line Items]
Junior subordinated deferrable interest notes issued	$ 12,400
SBCF Statutory Trust III | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	5.38%

Borrowings - Schedule of Junior

Borrowings - Schedule of Junior Subordinated Debentures and Related Trust Preferred and Common Equity Securities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Junior subordinated debt	$ 75,261
Trust preferred securities	73,000
Common equity securities	2,261
Unamortized debt discount	5,600
SBCF Capital Trust I
Debt Instrument [Line Items]
Junior subordinated debt	20,619
Trust preferred securities	20,000
Common equity securities	$ 619
Interest rate on junior subordinated loans	7.34%
SBCF Capital Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	5.33%
SBCF Statutory Trust II
Debt Instrument [Line Items]
Junior subordinated debt	$ 20,619
Trust preferred securities	20,000
Common equity securities	$ 619
Interest rate on junior subordinated loans	6.98%
SBCF Statutory Trust II | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	5.38%
SBCF Statutory Trust III
Debt Instrument [Line Items]
Junior subordinated debt	$ 12,372
Trust preferred securities	12,000
Common equity securities	$ 372
Interest rate on junior subordinated loans	7%
SBCF Statutory Trust III | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	5.38%
The BANKshares, Inc. Statutory Trust I
Debt Instrument [Line Items]
Junior subordinated debt	$ 5,155
Trust preferred securities	5,000
Common equity securities	$ 155
Interest rate on junior subordinated loans	8.87%
The BANKshares, Inc. Statutory Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
The BANKshares, Inc. Statutory Trust II
Debt Instrument [Line Items]
Junior subordinated debt	$ 4,124
Trust preferred securities	4,000
Common equity securities	$ 124
Interest rate on junior subordinated loans	8.43%
The BANKshares, Inc. Statutory Trust II | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	2.79%
The BANKshares, Inc. Capital Trust I
Debt Instrument [Line Items]
Junior subordinated debt	$ 5,155
Trust preferred securities	5,000
Common equity securities	$ 155
Interest rate on junior subordinated loans	7.03%
The BANKshares, Inc. Capital Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	5.38%
Grand Bank Capital Trust I
Debt Instrument [Line Items]
Junior subordinated debt	$ 7,217
Trust preferred securities	7,000
Common equity securities	$ 217
Interest rate on junior subordinated loans	7.57%
Grand Bank Capital Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	1.98%

Employee Benefits and Stock C_3

Employee Benefits and Stock Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands				12 Months Ended
	Jan. 31, 2023	Oct. 07, 2022	Jan. 03, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan charges to expenses				$ 4,800	$ 3,500	$ 3,100
Fair value of options and warrants converted				10,300	10,400	4,700
Share-based compensation expense				13,440	11,155	$ 8,685
Deferred compensation accrued liability				$ 400	200
Percent of fair market value that employees may purchase shares				95%
Business Bank of Florida
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of options and warrants converted			$ 497
Sabal Palm Bancorp, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of options and warrants converted			$ 3,336
Apollo Bancshares, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of options and warrants converted		$ 6,530
Warrants weighted average exercise price (in dollars per share)		$ 9.94
Professional Holding Corp.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of options and warrants converted	$ 10,304
2021 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)				3,750,000
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for repurchase (in shares)				800,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				5 years
Maximum term				10 years
Shares granted (in shares)				501,561,000
Weighted-average exercise price, granted (in dollars per share)				$ 12.63
Fair value of options and warrants converted					$ 10,400
Stock options | Business Bank of Florida
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)			52,432
Weighted-average exercise price, granted (in dollars per share)			$ 26.63
Stock options | Sabal Palm Bancorp, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)			188,253
Weighted-average exercise price, granted (in dollars per share)			$ 17.84
Stock options | Apollo Bancshares, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)		274,373
Weighted-average exercise price, granted (in dollars per share)		$ 9.94
Stock options | Professional Holding Corp.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	501,561
Weighted-average exercise price, granted (in dollars per share)	$ 12.63
Fair value of options and warrants converted	$ 10,300
Stock options | 2021 Plan | Legacy Bank of Florida
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)						356,497
Weighted-average exercise price, granted (in dollars per share)						$ 16.70
Fair value of options and warrants converted						$ 4,700
Share-based compensation expense						$ 900
Stock options | 2021 Plan | Business Bank of Florida
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of options and warrants converted			$ 500
Stock options | 2021 Plan | Sabal Palm Bancorp, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of options and warrants converted			$ 3,300
Warrant | Apollo Bancshares, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		37,240
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Granted (in shares)				631,409,000
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Granted (in shares)				233,175,000
Restricted Stock Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target award percentage				0%	0%
Restricted Stock Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target award percentage				225%	225%

Employee Benefits and Stock C_4

Employee Benefits and Stock Compensation - Impact of Shared-Based Compensation (Details) - USD ($) $ 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 compensation expense	$ 13,440	$ 11,155	$ 8,685
Income tax benefit	(3,406)	(2,827)	(2,067)
Fair value of options and warrants converted	$ 10,300	10,400	$ 4,700
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of options and warrants converted		$ 10,400

Employee Benefits and Stock C_5

Employee Benefits and Stock Compensation - Summary of Unrecognized Compensation Cost (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 20,028
Weighted-Average Period Remaining (Years)	2 years 14 days
Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 14,392
Weighted-Average Period Remaining (Years)	1 year 11 months 8 days
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 5,636
Weighted-Average Period Remaining (Years)	2 years 3 months 18 days

Employee Benefits and Stock C_6

Employee Benefits and Stock Compensation - Summary of Status of Restricted Stock and Restricted Stock Units (Details)	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Restricted Stock Awards
Restricted Award Shares
Non-vested beginning balance (in shares) | shares	533,275,000
Granted (in shares) | shares	631,409,000
Forfeited/Cancelled (in shares) | shares	(112,456,000)
Vested (in shares) | shares	(289,016,000)
Non-vested ending balance (in shares) | shares	763,212,000
Weighted-Average Grant-Date Fair Value
Non-vested at beginning of period (in dollars per share) | $ / shares	$ 31.26
Granted (in dollars per share) | $ / shares	24.57
Forfeited/Canceled (in dollars per share) | $ / shares	27.35
Vested (in dollars per share) | $ / shares	28.22
Non-vested at ending of period (in dollars per share) | $ / shares	$ 27.45
Restricted Stock Units
Restricted Award Shares
Non-vested beginning balance (in shares) | shares	310,034,000
Granted (in shares) | shares	233,175,000
Forfeited/Cancelled (in shares) | shares	(47,416,000)
Vested (in shares) | shares	(112,092,000)
Non-vested ending balance (in shares) | shares	383,701,000
Weighted-Average Grant-Date Fair Value
Non-vested at beginning of period (in dollars per share) | $ / shares	$ 28.69
Granted (in dollars per share) | $ / shares	22.84
Forfeited/Canceled (in dollars per share) | $ / shares	20.58
Vested (in dollars per share) | $ / shares	17.82
Non-vested at ending of period (in dollars per share) | $ / shares	$ 29.31

Employee Benefits and Stock C_7

Employee Benefits and Stock Compensation - Summary of Restricted Stock and Restricted Stock Units (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value (in dollars per share)	$ 24,570	$ 33.08	$ 35.08
Fair value of awards vested	$ 8,156	$ 6,923	$ 4,731
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value (in dollars per share)	$ 22.84	$ 34.11	$ 35.24
Fair value of awards vested	$ 1,997	$ 2,305	$ 1,936

Employee Benefits and Stock C_8

Employee Benefits and Stock Compensation - Summary of the Fair Value of Each Option Grant on the Date of Grant (Details) - Stock options	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rates	4.25%	2.21%	0.12%
Expected dividend yield	2.45%	1.95%	1.65%
Expected volatility	64.32%	32.09%	36.87%
Expected lives (years)	1 year 9 months 18 days	1 year	1 year

Employee Benefits and Stock C_9

Employee Benefits and Stock Compensation - Summary of Stock Options Outstanding and Exercisable (Details) - Stock options $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares
Options
Options, outstanding at beginning of period (in shares) | shares	837,622,000
Options granted (in shares) | shares	501,561,000
Options, exercised (in shares) | shares	(507,133,000)
Options, forfeited (in shares) | shares	(8,087,000)
Options, outstanding at end of period (in shares) | shares	823,963,000
Options, exercisable at end of period (in shares) | shares	823,963,000
Weighted-Average Exercise Price
Weighted-average exercise price at beginning of period (in dollars per share) | $ / shares	$ 21.72
Weighted-average exercise price, granted (in dollars per share) | $ / shares	12.63
Weighted-average exercise price, exercised (in dollars per share) | $ / shares	14.76
Weighted-average exercise price, forfeited (in dollars per share) | $ / shares	20.77
Weighted-average exercise price at end of period (in dollars per share) | $ / shares	20.48
Weighted-average exercise price, exercisable at end of period (in dollars per share) | $ / shares	$ 20.48
Weighted-Average Remaining Contractual Term (Years)	3 years 3 months 14 days
Aggregate Intrinsic Value | $	$ 7,053

Employee Benefits and Stock _10

Employee Benefits and Stock Compensation - Summary of Stock Options (Details) - Stock options - 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]
Weighted-average grant date fair value (in dollars per share)	$ 12.63	$ 14.28	$ 16.70
Intrinsic value of stock options exercised, in thousands	$ 5,969	$ 8,860	$ 5,808

Employee Benefits and Stock _11

Employee Benefits and Stock Compensation - Employee Stock Purchase Plan (Details) - ESPP - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	35,630	20,972	14,834
Weighted-average employee purchase price (in dollars per share)	$ 22.56	$ 30.76	$ 32.43

Lease Commitments - Lease Cost

Lease Commitments - Lease Cost Information Related to Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease cost	$ 10,667	$ 8,111	$ 5,872
Variable lease cost	2,827	1,599	996
Short-term lease cost	919	427	564
Sublease income	(639)	(704)	(601)
Total lease cost	$ 13,774	$ 9,433	$ 6,831

Lease Commitments - Supplementa

Lease Commitments - Supplemental Balance Sheet and Cash Flow Information Related to Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease right-of-use assets	$ 46,772	$ 47,500
Other assets	Other assets	Other assets
Operating lease liabilities	$ 50,545	$ 50,770
Other liabilities	Other liabilities	Other liabilities	Other liabilities
Cash paid during the year for amounts included in the measurement of operating lease liabilities	$ 10,005	$ 16,508
Right-of-use assets recorded during the year in exchange for new or renewed operating lease obligations	4,139	5,305
Right-of-use assets obtained during the year through bank acquisition	$ 3,909	$ 14,597
Weighted average remaining lease term for operating leases	7 years	8 years
Weighted average discount rate for operating leases	4.94%	4.64%

Lease Commitments - Maturities

Lease Commitments - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2024	$ 10,465
2025	9,833
2026	8,499
2027	7,437
2028	6,388
Thereafter	16,181
Total undiscounted cash flows	58,803
Less: Net present value adjustment	(8,258)
Total	$ 50,545	$ 50,770

Income Taxes - Summary of Incom

Income Taxes - Summary of Income Tax Expense Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current
Federal	$ 14,716	$ 2,770	$ 23,661
State	6,061	(1,266)	3,882
Deferred
Federal	9,524	23,710	6,800
State	(82)	6,415	(8)
Total income tax provision	$ 30,219	$ 31,629	$ 34,335

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Expected Tax Benefit with Pretax Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Tax rate applied to income before income taxes	$ 28,193	$ 29,009	$ 33,335
Increase (decrease) resulting from the effects of:
Nondeductible acquisition costs	300	924	419
Tax exempt interest on loans and securities	(639)	(406)	(414)
Income from bank owned life insurance	(2,217)	(935)	(862)
State income taxes	(1,256)	(1,081)	(813)
Tax credit investments	(402)	(406)	(213)
Stock compensation	(446)	(992)	(1,239)
Executive compensation disallowance	638	402	253
Other	69	(36)	(5)
Federal tax provision	24,240	26,479	30,461
State tax provision	5,979	5,150	3,874
Total income tax provision	$ 30,219	$ 31,629	$ 34,335

Income Taxes - Summary of Net D

Income Taxes - Summary of Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Assets, Gross [Abstract]
Allowance for credit losses	$ 40,710	$ 31,097
Other real estate owned	91	591
Accrued stock compensation	4,556	2,931
Federal tax loss carryforward	2,660	3,150
State tax loss carryforward	1,084	1,117
Lease liabilities	12,811	12,868
Net unrealized securities losses	50,817	59,392
Deferred compensation	2,828	2,766
Accrued interest and fee income	34,665	16,035
Other	7,027	1,755
Gross deferred tax assets	157,249	131,702
Less: Valuation allowance	0	0
Deferred tax assets net of valuation allowance	157,249	131,702
Deferred Tax Liabilities, Gross [Abstract]
Core deposit intangible	(24,301)	(18,767)
Net unrealized derivatives gains	(670)	0
Premises and equipment	(1,771)	(2,214)
Right of use assets	(11,854)	(12,039)
Other	(5,421)	(4,225)
Gross deferred tax liabilities	(44,017)	(37,245)
Net deferred tax assets	$ 113,232	$ 94,457

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Unrealized losses resulting in deferred tax asset	$ 212,700,000	$ 247,400,000
Deferred tax assets from unrealized losses on certain investments in debt securities	50,817,000	59,392,000
Net deferred tax assets	113,232,000	94,457,000
Deferred tax assets	113,232,000	94,457,000
Accrual for income tax interest or penalties	0
Income tax benefit related to share-based compensation	500,000	1,100,000	$ 900,000
Amortization reflected as income expense related to affordable housing project investments	2,800,000	2,500,000	1,600,000
Affordable housing project tax credits	2,700,000	2,000,000	1,200,000
Affordable housing project tax benefits	1,500,000	1,000,000	$ 700,000
Carrying value of affordable housing tax credits	39,500,000	27,300,000
Affordable housing tax credits, unfunded amounts	26,300,000	17,600,000
Unrecognized income tax benefits	0
U.S. Federal
Operating Loss Carryforwards [Line Items]
Net deferred tax assets	91,000,000
Deferred tax assets	2,700,000	76,800,000
State
Operating Loss Carryforwards [Line Items]
Net deferred tax assets	22,200,000
Deferred tax assets	$ 1,100,000	$ 17,700,000

Regulatory Capital - Summary of

Regulatory Capital - Summary of Required Regulatory Capital (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer rate	2.50%
Parent Company
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Risk-Based Capital Ratio (to risk-weighted assets), Amount	$ 1,713,797	$ 1,454,168
Tier 1 Capital (to risk-weighted assets), Amount	1,565,710	1,361,832
Common Equity Tier 1 Capital (to risk-weighted assets), Amount	1,493,499	1,277,295
Leverage (to adjusted average assets), Amount	$ 1,565,710	$ 1,361,832
Total Risk-Based Capital Ratio (to risk-weighted assets), Ratio	0.1592	0.1579
Tier 1 Capital (to risk-weighted assets), Ratio	0.1454	0.1479
Common Equity Tier 1 Capital (to risk-weighted assets), Ratio	13.87%	13.87%
Leverage (to adjusted average assets), Ratio	0.1100	0.1146
Total Risk-Based Capital Ratio (to risk-weighted assets), Minimum for Capital Adequacy Purpose, Amount	$ 861,355	$ 736,709
Tier 1 Capital (to risk-weighted assets), Minimum for Capital Adequacy Purpose, Amount	646,017	552,532
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum for Capital, Adequacy Purpose, Amount	484,512	414,399
Leverage (to adjusted average assets), Minimum for Capital Adequacy Purpose, Amount	$ 569,317	$ 475,134
Total Risk-Based Capital Ratio (to risk-weighted assets), Minimum for Capital Adequacy Purpose, Ratio	0.0800	0.0800
Tier 1 Capital (to risk-weighted assets), Minimum for Capital Adequacy Purpose, Ratio	0.0600	0.0600
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum for Capital, Adequacy Purpose, Ratio	4.50%	4.50%
Leverage (to adjusted average assets), Minimum for Capital Adequacy Purpose, Ratio	0.0400	0.0400
Seacoast National Bank (A Wholly Owned Bank Subsidiary)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Risk-Based Capital Ratio (to risk-weighted assets), Amount	$ 1,593,431	$ 1,330,836
Tier 1 Capital (to risk-weighted assets), Amount	1,466,878	1,238,500
Common Equity Tier 1 Capital (to risk-weighted assets), Amount	1,466,874	1,238,496
Leverage (to adjusted average assets), Amount	$ 1,466,878	$ 1,238,500
Total Risk-Based Capital Ratio (to risk-weighted assets), Ratio	0.1482	0.1447
Tier 1 Capital (to risk-weighted assets), Ratio	0.1364	0.1346
Common Equity Tier 1 Capital (to risk-weighted assets), Ratio	13.64%	13.46%
Leverage (to adjusted average assets), Ratio	0.1032	0.1044
Total Risk-Based Capital Ratio (to risk-weighted assets), Minimum for Capital Adequacy Purpose, Amount	$ 860,395	$ 735,923
Tier 1 Capital (to risk-weighted assets), Minimum for Capital Adequacy Purpose, Amount	645,296	551,942
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum for Capital, Adequacy Purpose, Amount	483,972	413,957
Leverage (to adjusted average assets), Minimum for Capital Adequacy Purpose, Amount	$ 568,831	$ 496,318
Total Risk-Based Capital Ratio (to risk-weighted assets), Minimum for Capital Adequacy Purpose, Ratio	0.0800	0.0800
Tier 1 Capital (to risk-weighted assets), Minimum for Capital Adequacy Purpose, Ratio	0.0600	0.0600
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum for Capital, Adequacy Purpose, Ratio	4.50%	4.50%
Leverage (to adjusted average assets), Minimum for Capital Adequacy Purpose, Ratio	0.0400	0.0400
Total Risk-Based Capital Ratio (to risk-weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,075,494	$ 919,904
Tier 1 Capital (to risk-weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	860,395	735,923
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	699,071	597,938
Leverage (to adjusted average assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 711,039	$ 620,398
Total Risk-Based Capital Ratio (to risk-weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.1000	0.1000
Tier 1 Capital (to risk-weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0800	0.0800
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%
Leverage (to adjusted average assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0500	0.0500

Seacoast Banking Corporation _3

Seacoast Banking Corporation of Florida (Parent Company Only) Financial Information - Summary of Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets
Other assets	$ 331,345	$ 280,212
Total Assets	14,580,249	12,145,762
Liabilities and Shareholders' Equity
Long-term debt	106,302	84,533
Other liabilities	164,353	149,830
Shareholders' equity	2,108,086	1,607,775	$ 1,310,736	$ 1,130,402
Total Liabilities & Shareholders' Equity	14,580,249	12,145,762
Parent Company
Assets
Cash	466	58
Securities purchased under agreement to resell with subsidiary bank, maturing within 30 days	101,191	111,698
Investment in subsidiaries	2,109,341	1,578,786
Other assets	4,837	2,335
Total Assets	2,215,835	1,692,877
Liabilities and Shareholders' Equity
Long-term debt	106,302	84,533
Other liabilities	1,551	673
Shareholders' equity	2,107,982	1,607,671
Total Liabilities & Shareholders' Equity	$ 2,215,835	$ 1,692,877

Seacoast Banking Corporation _4

Seacoast Banking Corporation of Florida (Parent Company Only) Financial Information - Summary of Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income
Total Interest Income	$ 688,975	$ 380,494	$ 284,244
Interest expense	200,735	14,332	8,219
Other expenses	29,155	23,690	16,341
Income Before Income Taxes	134,252	138,136	158,738
Income tax benefit	30,219	31,629	34,335
Net Income	104,033	106,507	124,403
Parent Company
Income
Interest/other	3,573	897	167
Dividends from subsidiary Bank	40,655	48,424	47,684
Total Interest Income	44,228	49,321	47,851
Interest expense	7,408	3,090	1,683
Other expenses	996	1,023	765
Total expenses	8,404	4,113	2,448
Income Before Income Taxes	35,824	45,208	45,403
Income tax benefit	(1,015)	(675)	(481)
Income before equity in undistributed income of subsidiaries	36,839	45,883	45,884
Equity in undistributed income of subsidiaries	67,194	60,624	78,519
Net Income	$ 104,033	$ 106,507	$ 124,403

Seacoast Banking Corporation _5

Seacoast Banking Corporation of Florida (Parent Company Only) Financial Information - Summary of Statement of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Adjustments to reconcile net income to net cash provided by operating activities:
Net Income	$ 104,033	$ 106,507	$ 124,403
Net increase in other assets	(8,967)	508	(42,437)
Net increase in other liabilities	(8,755)	22,042	28,883
Net Cash Provided by Operating Activities	150,613	195,859	154,572
Cash Flows From Investing Activities
Net Cash Provided by (Used in) Investing Activities	527,446	(364,875)	(412,511)
Cash Flows From Financing Activities
Dividends paid	(60,591)	(41,242)	(22,506)
Stock based employee benefit plans	5,100	3,408	5,022
Repurchase of common stock	(10,868)	0	0
Net Cash (Used in) Provided by Financing Activities	(432,817)	(366,773)	591,580
Net increase (decrease) in cash and cash equivalents	245,242	(535,789)	333,641
Cash and Cash Equivalents at Beginning of Year	201,940	737,729	404,088
Cash and Cash Equivalents at End of Year	447,182	201,940	737,729
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	191,225	13,743	9,977
Parent Company
Adjustments to reconcile net income to net cash provided by operating activities:
Net Income	104,033	106,507	124,403
Equity in undistributed income of subsidiaries	(67,194)	(60,624)	(78,519)
Net increase in other assets	(3,029)	(13,823)	(489)
Net increase in other liabilities	22,646	499	400
Net Cash Provided by Operating Activities	56,456	32,559	45,795
Cash Flows From Investing Activities
Net cash from bank acquisitions	10,237	17,610	0
Net advances with subsidiary	270	(13,300)	(28,324)
Net Cash Provided by (Used in) Investing Activities	10,507	4,310	(28,324)
Cash Flows From Financing Activities
Dividends paid	(60,591)	(41,242)	(22,506)
Stock based employee benefit plans	4,904	4,374	5,022
Repurchase of common stock	(10,868)	0	0
Net Cash (Used in) Provided by Financing Activities	(66,555)	(36,868)	(17,484)
Net increase (decrease) in cash and cash equivalents	408	1	(13)
Cash and Cash Equivalents at Beginning of Year	58	57	70
Cash and Cash Equivalents at End of Year	466	58	57
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	$ 5,315	$ 2,890	$ 1,441

Contingent Liabilities and Co_3

Contingent Liabilities and Commitments with Off-Balance Sheet Risk - Summary of Financial Instruments with Off-Balance-Sheet Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Other Commitments [Line Items]
Commitments to extend credit	$ 2,651,206	$ 2,814,924
Unfunded limited partner equity commitment	20,004	26,761
Secured
Other Commitments [Line Items]
Collateral held	35,800
Secured
Other Commitments [Line Items]
Standby letters of credit and financial guarantees written	35,669	19,744
Unsecured
Other Commitments [Line Items]
Standby letters of credit and financial guarantees written	$ 2,830	$ 3,191

Fair Value - Fair Value Measure

Fair Value - Fair Value Measurements for Items Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial Assets
Available-for-sale debt securities	$ 1,836,020	$ 1,871,742
Other real estate owned	7,560	2,301
Fair Value, Measurements, Recurring
Financial Assets
Available-for-sale debt securities	1,836,020	1,871,742
Derivative financial instruments	31,481	23,142
Loans held for sale	4,391	3,151
Equity securities	13,623	8,220
Financial Liabilities
Derivative financial instruments	28,879	23,142
Fair Value, Measurements, Recurring | Level 1
Financial Assets
Available-for-sale debt securities	192	186
Derivative financial instruments	0	0
Loans held for sale	0	0
Equity securities	13,623	8,220
Financial Liabilities
Derivative financial instruments	0	0
Fair Value, Measurements, Recurring | Level 2
Financial Assets
Available-for-sale debt securities	1,835,828	1,871,556
Derivative financial instruments	31,481	23,142
Loans held for sale	4,391	3,151
Equity securities	0	0
Financial Liabilities
Derivative financial instruments	28,879	23,142
Fair Value, Measurements, Recurring | Level 3
Financial Assets
Available-for-sale debt securities	0	0
Derivative financial instruments	0	0
Loans held for sale	0	0
Equity securities	0	0
Financial Liabilities
Derivative financial instruments	0	0
Fair Value, Measurements, Nonrecurring
Financial Assets
Loans	15,242	8,513
Other real estate owned	7,560	2,301
Fair Value, Measurements, Nonrecurring | Level 1
Financial Assets
Loans	0	0
Other real estate owned	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Financial Assets
Loans	0	1,183
Other real estate owned	0	2,301
Fair Value, Measurements, Nonrecurring | Level 3
Financial Assets
Loans	15,242	7,330
Other real estate owned	$ 7,560	$ 0

Fair Value - Narrative (Details

Fair Value - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Average capitalization rate	7.10%
Specific reserve	$ 148,931	$ 113,895	$ 83,315	$ 92,733
Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of impaired loans	17,800	10,200
Specific reserve	$ 2,600	$ 2,900

Fair Value - Summary of Carryin

Fair Value - Summary of Carrying Value and Fair Value of Company's Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial Assets
Held-to-maturity debt securities	$ 680,313	$ 747,408
Time deposits with other banks	5,857	3,236
Loans, net	9,914,009	8,030,829
Level 1
Financial Assets
Time deposits with other banks	0	0
Loans, net	0	0
Financial Liabilities
Deposits	0	0
FHLB borrowings	0	0
Long-term debt	0	0
Level 1 | Fair Value, Measurements, Recurring
Financial Assets
Held-to-maturity debt securities	0	0
Level 2
Financial Assets
Time deposits with other banks	5,756	2,989
Loans, net	0	0
Financial Liabilities
Deposits	0	0
FHLB borrowings	49,745	0
Long-term debt	100,851	82,226
Level 2 | Fair Value, Measurements, Recurring
Financial Assets
Held-to-maturity debt securities	558,359	617,741
Level 3
Financial Assets
Time deposits with other banks	0	0
Loans, net	9,805,693	7,845,375
Financial Liabilities
Deposits	11,775,613	9,976,125
FHLB borrowings	0	149,450
Long-term debt	0	0
Level 3 | Fair Value, Measurements, Recurring
Financial Assets
Held-to-maturity debt securities	0	0
Carrying Amount
Financial Assets
Time deposits with other banks	5,857	3,236
Loans, net	9,898,767	8,022,316
Financial Liabilities
Deposits	11,776,935	9,981,595
FHLB borrowings	50,000	150,000
Long-term debt	109,458	84,533
Carrying Amount | Fair Value, Measurements, Recurring
Financial Assets
Held-to-maturity debt securities	$ 680,313	$ 747,408

Business Combinations - Narrati

Business Combinations - Narrative (Details) $ in Thousands				12 Months Ended
	Jan. 31, 2023 USD ($) branch	Oct. 07, 2022 USD ($) branch	Jan. 03, 2022 USD ($) branch	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Goodwill				$ 732,417	$ 480,319	$ 252,154	$ 221,176
Fair value of options and warrants converted				10,300	10,400	4,700
Allowance for credit losses				148,931	113,895	83,315	$ 92,733
Acquisition costs				$ 33,200	27,900	$ 7,900
Stock options
Business Acquisition [Line Items]
Fair value of options and warrants converted					$ 10,400
Professional Holding Corp.
Business Acquisition [Line Items]
Number of branches acquired | branch	9
Percentage of common stock acquired	100%
Exchange ratio (in shares)	0.8909
Goodwill	$ 251,674
Fair value of options and warrants converted	10,304
Allowance for credit losses	45,500
Measurement Period Adjustments, Loans	(5,544)
Professional Holding Corp. | Stock options
Business Acquisition [Line Items]
Fair value of options and warrants converted	10,300
Professional Holding Corp. | PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses at acquisition	18,879
Professional Holding Corp. | Acquired Non-PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses	$ 26,600
Apollo Bancshares, Inc.
Business Acquisition [Line Items]
Number of branches acquired | branch		5
Exchange ratio (in shares)		1.006529
Goodwill		$ 90,488
Fair value of options and warrants converted		6,530
Allowance for credit losses		7,800
Measurement Period Adjustments, Loans		$ 0
Minority interest portion, number of Seacoast stock for each share of stock converted (in shares)		1.195651
Apollo Bancshares, Inc. | PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses at acquisition		$ 2,658
Apollo Bancshares, Inc. | Acquired Non-PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses		$ 5,100
Drummond Banking Company
Business Acquisition [Line Items]
Number of branches acquired | branch		18
Percentage of common stock acquired		100%
Exchange ratio (in shares)		51.9561
Goodwill		$ 103,649
Allowance for credit losses		12,500
Measurement Period Adjustments, Loans		0
Goodwill, nondeductible for tax purposes		103,600
Drummond Banking Company | PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses at acquisition		2,566
Drummond Banking Company | Acquired Non-PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses		$ 9,900
Business Bank of Florida
Business Acquisition [Line Items]
Number of branches acquired | branch			1
Percentage of common stock acquired			100%
Exchange ratio (in shares)			0.7997
Goodwill			$ 7,962
Fair value of options and warrants converted			497
Allowance for credit losses			1,800
Goodwill, nondeductible for tax purposes			8,000
Business Bank of Florida | Stock options | Seacoast 2021 Incentive Plan
Business Acquisition [Line Items]
Fair value of options and warrants converted			500
Business Bank of Florida | PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses			15
Allowance for credit losses at acquisition			15
Business Bank of Florida | Acquired Non-PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses			$ 1,800
Sabal Palm Bancorp, Inc.
Business Acquisition [Line Items]
Number of branches acquired | branch			3
Percentage of common stock acquired			100%
Exchange ratio (in shares)			0.2203
Goodwill			$ 26,489
Fair value of options and warrants converted			3,336
Allowance for credit losses			3,400
Goodwill, nondeductible for tax purposes			26,500
Sabal Palm Bancorp, Inc. | Stock options | Seacoast 2021 Incentive Plan
Business Acquisition [Line Items]
Fair value of options and warrants converted			3,300
Sabal Palm Bancorp, Inc. | PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses			37
Allowance for credit losses at acquisition			37
Sabal Palm Bancorp, Inc. | Acquired Non-PCD Loans
Business Acquisition [Line Items]
Allowance for credit losses			$ 3,400

Business Combinations - Purchas

Business Combinations - Purchase Price (Details) $ / shares in Units, $ in Thousands				12 Months Ended
	Jan. 31, 2023 USD ($) $ / shares shares	Oct. 07, 2022 USD ($) $ / shares shares	Jan. 03, 2022 USD ($) $ / shares shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Fair value of options and warrants converted				$ 10,300	$ 10,400	$ 4,700
Professional Holding Corp.
Business Acquisition [Line Items]
Number of shares outstanding (in shares) | shares	14,358,000
Exchange ratio (in shares)	0.8909
Number of shares of SBCF common stock issues (in shares) | shares	12,792,000
Multiplied by common stock price per share (in dollars per share) | $ / shares	$ 32.11
Value of common stock issued	$ 410,738
Cash paid for fractional shares	5
Fair value of options and warrants converted	10,304
Total purchase price	$ 421,047
Apollo Bancshares, Inc.
Business Acquisition [Line Items]
Number of shares outstanding (in shares) | shares		3,766,000
Exchange ratio (in shares)		1.006529
Number of shares of SBCF common stock issues (in shares) | shares		3,791,000
Number of minority interest shares outstanding (in shares) | shares		609,000
Per share exchange ratio (in shares)		1.195651
Number of shares of SBCF common stock issued, minority interest converted (in shares) | shares		728,000
Number of shares of common stock issued (in shares) | shares		4,519,000
Multiplied by common stock price per share (in dollars per share) | $ / shares		$ 30.83
Value of common stock issued		$ 139,307
Cash paid for fractional shares		5
Fair value of options and warrants converted		6,530
Total purchase price		$ 145,842
Drummond Banking Company
Business Acquisition [Line Items]
Number of shares outstanding (in shares) | shares		99,000
Exchange ratio (in shares)		51.9561
Number of shares of common stock issued (in shares) | shares		5,136,000
Multiplied by common stock price per share (in dollars per share) | $ / shares		$ 30.83
Total purchase price		$ 158,332
Business Bank of Florida
Business Acquisition [Line Items]
Number of shares outstanding (in shares) | shares			1,112,000
Exchange ratio (in shares)			0.7997
Number of shares of common stock issued (in shares) | shares			889,000
Multiplied by common stock price per share (in dollars per share) | $ / shares			$ 35.39
Value of common stock issued			$ 31,480
Fair value of options and warrants converted			497
Total purchase price			$ 31,977
Sabal Palm Bancorp, Inc.
Business Acquisition [Line Items]
Number of shares outstanding (in shares) | shares			7,536,000
Exchange ratio (in shares)			0.2203
Number of shares of common stock issued (in shares) | shares			1,660,000
Multiplied by common stock price per share (in dollars per share) | $ / shares			$ 35.39
Value of common stock issued			$ 58,762
Fair value of options and warrants converted			3,336
Total purchase price			$ 62,098

Business Combinations - Fair Va

Business Combinations - Fair Value of the Assets Purchased, Including Goodwill, and Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2023	Oct. 07, 2022	Dec. 31, 2023	Dec. 31, 2022	Jan. 03, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets:
Goodwill			$ 732,417	$ 480,319		$ 252,154	$ 221,176
Professional Holding Corp.
Assets:
Cash and cash equivalents	$ 141,680
Measurement Period Adjustments, Cash and cash equivalents	0
Investment securities	167,059
Measurement Period Adjustments, Investment securities	0
Loans	1,986,169
Measurement Period Adjustments, Loans	(5,544)
Bank premises and equipment	2,478
Measurement Period Adjustments, Bank premises and equipment	0
Core deposit intangibles	48,885
Measurement Period Adjustments, Core deposit intangibles	0
Goodwill	251,674
Measurement Period Adjustments, Goodwill	3,583
BOLI	55,071
Measurement Period Adjustments, BOLI	0
Other Assets	76,793
Measurement Period Adjustments, Other Assets	2,561
Total Assets	2,729,809
Measurement Period Adjustments, Total Assets	600
Liabilities:
Deposits	2,119,341
Measurement Period Adjustments, Deposits	0
Subordinated debt	21,141
Measurement Period Adjustments, Subordinated debt	0
Other Liabilities	168,280
Measurement Period Adjustments, Other Liabilities	600
Total Liabilities	2,308,762
Measurement Period Adjustments, Total Liabilities	600
Professional Holding Corp. | Initially Measured
Assets:
Cash and cash equivalents	141,680
Investment securities	167,059
Loans	1,991,713
Bank premises and equipment	2,478
Core deposit intangibles	48,885
Goodwill	248,091
BOLI	55,071
Other Assets	74,232
Total Assets	2,729,209
Liabilities:
Deposits	2,119,341
Subordinated debt	21,141
Other Liabilities	167,680
Total Liabilities	$ 2,308,162
Apollo Bancshares, Inc.
Assets:
Cash and cash equivalents		$ 41,001
Measurement Period Adjustments, Cash and cash equivalents		0
Investment securities		203,596
Measurement Period Adjustments, Investment securities		0
Loans		666,522
Measurement Period Adjustments, Loans		0
Bank premises and equipment		7,809
Measurement Period Adjustments, Bank premises and equipment		0
Core deposit intangibles		28,699
Measurement Period Adjustments, Core deposit intangibles		0
Goodwill		90,488
Measurement Period Adjustments, Goodwill		251
Other Assets		52,473
Measurement Period Adjustments, Other Assets		(251)
Total Assets		1,090,588
Measurement Period Adjustments, Total Assets		0
Liabilities:
Deposits		854,774
Measurement Period Adjustments, Deposits		0
Other Liabilities		89,972
Measurement Period Adjustments, Other Liabilities		0
Total Liabilities		944,746
Measurement Period Adjustments, Total Liabilities		0
Apollo Bancshares, Inc. | Initially Measured
Assets:
Cash and cash equivalents		41,001
Investment securities		203,596
Loans		666,522
Bank premises and equipment		7,809
Core deposit intangibles		28,699
Goodwill		90,237
Other Assets		52,724
Total Assets		1,090,588
Liabilities:
Deposits		854,774
Other Liabilities		89,972
Total Liabilities		944,746
Drummond Banking Company
Assets:
Cash and cash equivalents		31,805
Measurement Period Adjustments, Cash and cash equivalents		0
Investment securities		327,852
Measurement Period Adjustments, Investment securities		0
Loans		544,694
Measurement Period Adjustments, Loans		0
Bank premises and equipment		29,370
Measurement Period Adjustments, Bank premises and equipment		0
Core deposit intangibles		32,983
Measurement Period Adjustments, Core deposit intangibles		0
Goodwill		103,649
Measurement Period Adjustments, Goodwill		173
Other Assets		49,639
Measurement Period Adjustments, Other Assets		(173)
Total Assets		1,119,992
Measurement Period Adjustments, Total Assets		0
Liabilities:
Deposits		881,281
Measurement Period Adjustments, Deposits		0
Other Liabilities		80,379
Measurement Period Adjustments, Other Liabilities		0
Total Liabilities		961,660
Measurement Period Adjustments, Total Liabilities		0
Drummond Banking Company | Initially Measured
Assets:
Cash and cash equivalents		31,805
Investment securities		327,852
Loans		544,694
Bank premises and equipment		29,370
Core deposit intangibles		32,983
Goodwill		103,476
Other Assets		49,812
Total Assets		1,119,992
Liabilities:
Deposits		881,281
Other Liabilities		80,379
Total Liabilities		$ 961,660
Business Bank of Florida
Assets:
Cash and cash equivalents					$ 38,332
Investment securities					26,011
Loans					121,774
Bank premises and equipment					2,102
Core deposit intangibles					2,621
Goodwill					7,962
Total Assets					198,802
Liabilities:
Deposits					166,326
Other Liabilities					499
Total Liabilities					166,825
Sabal Palm Bancorp, Inc.
Assets:
Cash and cash equivalents					170,609
Investment securities					6,473
Loans					246,152
Bank premises and equipment					1,745
Core deposit intangibles					5,587
Goodwill					26,489
Other Assets					5,189
Total Assets					462,244
Liabilities:
Deposits					395,952
Other Liabilities					4,194
Total Liabilities					$ 400,146

Business Combinations - Fair _2

Business Combinations - Fair Value of Acquired Loans (Details) - USD ($) $ in Thousands	Jan. 31, 2023	Oct. 07, 2022	Jan. 03, 2022
Professional Holding Corp.
Business Acquisition [Line Items]
Book Balance	$ 2,139,222
Fair Value	1,986,169
Professional Holding Corp. | Construction and land development
Business Acquisition [Line Items]
Book Balance	156,048
Fair Value	151,012
Professional Holding Corp. | Commercial real estate - owner occupied
Business Acquisition [Line Items]
Book Balance	293,473
Fair Value	274,068
Professional Holding Corp. | Commercial real estate - non-owner occupied
Business Acquisition [Line Items]
Book Balance	752,393
Fair Value	692,746
Professional Holding Corp. | Residential real estate
Business Acquisition [Line Items]
Book Balance	509,305
Fair Value	483,611
Professional Holding Corp. | Commercial and financial
Business Acquisition [Line Items]
Book Balance	392,396
Fair Value	350,628
Professional Holding Corp. | Consumer
Business Acquisition [Line Items]
Book Balance	33,656
Fair Value	32,153
Professional Holding Corp. | PPP Loans
Business Acquisition [Line Items]
Book Balance	1,951
Fair Value	$ 1,951
Apollo Bancshares, Inc.
Business Acquisition [Line Items]
Book Balance		$ 717,578
Fair Value		666,522
Apollo Bancshares, Inc. | Construction and land development
Business Acquisition [Line Items]
Book Balance		74,126
Fair Value		70,654
Apollo Bancshares, Inc. | Commercial real estate - owner occupied
Business Acquisition [Line Items]
Book Balance		131,093
Fair Value		121,600
Apollo Bancshares, Inc. | Commercial real estate - non-owner occupied
Business Acquisition [Line Items]
Book Balance		374,673
Fair Value		340,561
Apollo Bancshares, Inc. | Residential real estate
Business Acquisition [Line Items]
Book Balance		76,254
Fair Value		75,957
Apollo Bancshares, Inc. | Commercial and financial
Business Acquisition [Line Items]
Book Balance		50,125
Fair Value		46,695
Apollo Bancshares, Inc. | Consumer
Business Acquisition [Line Items]
Book Balance		11,307
Fair Value		11,055
Drummond Banking Company
Business Acquisition [Line Items]
Book Balance		587,002
Fair Value		544,694
Drummond Banking Company | Construction and land development
Business Acquisition [Line Items]
Book Balance		155,041
Fair Value		140,401
Drummond Banking Company | Commercial real estate - owner occupied
Business Acquisition [Line Items]
Book Balance		112,768
Fair Value		106,152
Drummond Banking Company | Commercial real estate - non-owner occupied
Business Acquisition [Line Items]
Book Balance		26,520
Fair Value		24,744
Drummond Banking Company | Residential real estate
Business Acquisition [Line Items]
Book Balance		85,767
Fair Value		78,663
Drummond Banking Company | Commercial and financial
Business Acquisition [Line Items]
Book Balance		88,026
Fair Value		82,067
Drummond Banking Company | Consumer
Business Acquisition [Line Items]
Book Balance		118,880
Fair Value		$ 112,667
Business Bank of Florida
Business Acquisition [Line Items]
Book Balance			$ 123,916
Fair Value			121,774
Business Bank of Florida | Construction and land development
Business Acquisition [Line Items]
Book Balance			8,677
Fair Value			8,414
Business Bank of Florida | Commercial real estate - owner occupied
Business Acquisition [Line Items]
Book Balance			45,403
Fair Value			44,564
Business Bank of Florida | Commercial real estate - non-owner occupied
Business Acquisition [Line Items]
Book Balance			53,065
Fair Value			52,034
Business Bank of Florida | Residential real estate
Business Acquisition [Line Items]
Book Balance			5,377
Fair Value			5,421
Business Bank of Florida | Commercial and financial
Business Acquisition [Line Items]
Book Balance			11,335
Fair Value			11,280
Business Bank of Florida | Consumer
Business Acquisition [Line Items]
Book Balance			59
Fair Value			61
Sabal Palm Bancorp, Inc.
Business Acquisition [Line Items]
Book Balance			248,910
Fair Value			246,152
Sabal Palm Bancorp, Inc. | Construction and land development
Business Acquisition [Line Items]
Book Balance			9,256
Fair Value			9,009
Sabal Palm Bancorp, Inc. | Commercial real estate - owner occupied
Business Acquisition [Line Items]
Book Balance			57,690
Fair Value			56,591
Sabal Palm Bancorp, Inc. | Commercial real estate - non-owner occupied
Business Acquisition [Line Items]
Book Balance			89,153
Fair Value			87,280
Sabal Palm Bancorp, Inc. | Residential real estate
Business Acquisition [Line Items]
Book Balance			71,469
Fair Value			72,227
Sabal Palm Bancorp, Inc. | Commercial and financial
Business Acquisition [Line Items]
Book Balance			21,109
Fair Value			20,813
Sabal Palm Bancorp, Inc. | Consumer
Business Acquisition [Line Items]
Book Balance			233
Fair Value			$ 232

Business Combinations - Carryin

Business Combinations - Carrying Amounts of Loans (Details) - PCD Loans - USD ($) $ in Thousands	Jan. 31, 2023	Oct. 07, 2022	Jan. 03, 2022
Professional Holding Corp.
Business Acquisition [Line Items]
Book balance of loans at acquisition	$ 155,031
Allowance for credit losses at acquisition	(18,879)
Non-credit related discount	(12,361)
Total PCD loans acquired	$ 123,791
Apollo Bancshares, Inc.
Business Acquisition [Line Items]
Book balance of loans at acquisition		$ 107,744
Allowance for credit losses at acquisition		(2,658)
Non-credit related discount		(14,191)
Total PCD loans acquired		90,895
Drummond Banking Company
Business Acquisition [Line Items]
Book balance of loans at acquisition		58,878
Allowance for credit losses at acquisition		(2,566)
Non-credit related discount		(4,607)
Total PCD loans acquired		$ 51,705
Business Bank of Florida
Business Acquisition [Line Items]
Book balance of loans at acquisition			$ 714
Allowance for credit losses at acquisition			(15)
Non-credit related discount			(48)
Total PCD loans acquired			651
Sabal Palm Bancorp, Inc.
Business Acquisition [Line Items]
Book balance of loans at acquisition			3,703
Allowance for credit losses at acquisition			(37)
Non-credit related discount			(663)
Total PCD loans acquired			$ 3,003

Business Combinations - Pro-For

Business Combinations - Pro-Forma Information (Details) - Professional Holding Corp. - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Net interest income	$ 499,008	$ 488,143
Net income available to common shareholders	$ 128,086	$ 107,398
EPS - basic (in dollars per share)	$ 1,510	$ 1,400
EPS - diluted (in dollars per share)	$ 1,500	$ 1,390