CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash Flows From Operating Activities
Net Income		$ 144,878	$ 120,986	$ 104,033
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		9,735	8,609	8,245
Accretion of discounts of premiums on securities, net		(7,565)	(2,963)	(949)
Amortization of operating lease ROUAs		9,441	8,221	8,053
Other amortization and accretion, net		20,571	2,379	(15,875)
Stock-based compensation		15,742	13,744	13,440
Origination of loans designated for sale		(165,709)	(95,420)	(113,151)
Sale of loans designated for sale		173,012	99,548	116,563
Provision for credit losses		51,260	16,258	37,518
Deferred income taxes		12,043	9,552	9,442
Losses on securities		522	8,016	2,935
Gains on sale of loans		(6,421)	(5,499)	(4,211)
(Gains) losses on sale of OREO, net of write-downs		(207)	134	450
Losses on disposition of fixed assets and write-downs upon transfer of bank premises to OREO		131	291	1,842
Changes in operating assets and liabilities, net of effects from acquired companies:
Net increase in other assets		(26,430)	(5,759)	(8,967)
Net (decrease) increase in other liabilities		(42,942)	1,805	(8,755)
Net cash provided by operating activities		188,061	179,902	150,613
Cash Flows From Investing Activities
Maturities and repayments of debt securities AFS		538,127	382,683	220,114
Maturities and repayments of debt securities HTM		48,743	45,257	69,471
Proceeds from sale of debt securities AFS		1,793,210	216,983	113,400
Purchases of debt securities AFS		(2,258,000)	(993,920)	(100,873)
Maturities and redemptions of time deposits with other banks		18,648	6,124	1,984
Purchases of time deposits with other banks		0	(3,482)	(4,605)
Net new loans and principal repayments		(982,577)	(243,757)	110,665
Purchases of loans held for investment		0	(44,556)	0
Proceeds from the sale of loans held for investment		19,507	34,399	0
Proceeds from the sale of OREO		4,534	2,841	577
Proceeds from sale of FHLB and Federal Reserve Bank stock		56,195	11,314	73,473
Purchase of FHLB and Federal Reserve Bank stock		(110,594)	(20,840)	(88,141)
Proceeds from BOLI death benefit		5,059	0	0
Proceeds from sale of Visa Class B shares		0	4,104	0
Net cash from bank acquisitions		169,559	0	141,674
Additions to bank premises and equipment		(9,174)	(4,034)	(10,293)
Net cash (used in) provided by investing activities		(706,763)	(606,884)	527,446
Cash Flows From Financing Activities
Net (decrease) increase in deposits		(142,148)	465,493	(324,002)
Net increase (decrease) in repurchase agreements		51,868	(142,502)	202,544
Net increase (decrease) in FHLB borrowings with original maturities of three months or less		115,000	0	(280,000)
Repayments of FHLB borrowings with original maturities of more than three months		(235,000)	(160,000)	(75,000)
Proceeds from FHLB borrowings with original maturities of more than three months		710,000	355,000	110,000
Stock-based employee benefit plans		(1,353)	945	5,100
Repurchase of common stock		0	(880)	(10,868)
Dividends paid		(67,727)	(61,649)	(60,591)
Net cash provided by (used in) financing activities		430,640	456,407	(432,817)
Net (decrease) increase in cash and cash equivalents		(88,062)	29,425	245,242
Cash and cash equivalents at beginning of period		476,607	447,182	201,940
Cash and cash equivalents at end of period		388,545	476,607	447,182
Supplemental disclosure of cash flow information:
Cash paid for interest		277,644	287,272	191,225
Cash paid (refunded) for U.S. federal taxes, net		13,441	16,888	(6,000)
Cash paid for U.S. state taxes, net	[1]	2,120	1,609	79
Recognition of operating lease ROUAs, other than through bank acquisition, net of terminations		12,695	0	2,068
Recognition of operating lease liabilities, other than through bank acquisition, net of terminations		12,868	0	2,080
Supplemental disclosure of non-cash investing activities:
Transfer of loans from held for investment to held for sale	[2]	0	19,775	0
Transfer from loans to OREO	[2]	1,198	953	0
Transfer from bank premises to OREO	[2]	$ 425	$ 883	$ 6,286

[1] 1Primarily attributable to the state of Florida.

[2] 2See "Note 17 - Business Combinations" for non-cash transactions related to business combinations.