Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash flows from operating activities:
Net income	$ 146,580	$ 136,432
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation	4,724	3,906
Provision for credit losses	17,101	14,674
Deferred income taxes	(4,304)	1,975
Net amortization of discount/premiums on debt securities	3,142	3,109
Net amortization on loans	866	1,386
Amortization of intangible assets	2,344	2,918
Amortization of servicing assets	694	881
Mortgage loans originated-for-sale	(19,926)	(18,292)
Proceeds from mortgage loans sold	19,518	18,451
Sale of investment securities	(106)	0
Sale of SBA loans	(4,188)	(1,415)
Sale of other real estate	(86)	(3,157)
Sale of state tax credits	(110)	(768)
Stock-based compensation	9,214	7,578
Net change in other assets and liabilities	(24,790)	27,745
Net cash provided by operating activities	150,673	195,423
Cash flows from investing activities:
Net increase in loans	(456,978)	(238,646)
Sale of debt securities, available-for-sale	9,631	0
Paydown or maturity of debt securities, available-for-sale	294,939	185,167
Paydown or maturity of debt securities, held-to-maturity	20,706	4,583
Redemption of other investments	109,214	55,791
Sale of SBA loans	83,760	25,090
Sale of state tax credits held for sale	725	4,317
Sale of other real estate	3,967	11,017
Settlement of bank-owned life insurance policies	2,079	0
Payments for the purchase of:
Available-for-sale debt securities	(721,648)	(325,665)
Held-to-maturity debt securities	(178,520)	(110,172)
Other investments	(131,624)	(66,841)
Bank-owned life insurance	(75,009)	0
State tax credits held for sale	(360)	(2,810)
Fixed assets	(8,964)	(5,594)
Net cash used in investing activities	(1,048,082)	(463,763)
Cash flows from financing activities:
Net decrease in noninterest-bearing deposit accounts	(97,559)	(24,498)
Net increase in interest-bearing deposit accounts	518,979	313,449
Net increase in short term FHLB advances, net	327,000	150,000
Proceeds from notes payable	63,250	0
Repayments of notes payable	(2,259)	(11,429)
Repayments of subordinated debentures	(63,250)	0
Net decrease in other borrowings	(94,805)	(115,586)
Repurchase of common stock	(10,630)	(18,385)
Cash dividends paid on common stock	(33,271)	(29,171)
Cash dividends paid on preferred stock	(2,813)	(2,813)
Other	552	124
Net cash provided by financing activities	605,194	261,691
Net decrease in cash and cash equivalents	(292,215)	(6,649)
Cash and cash equivalents, beginning of period	764,170	433,029
Cash and cash equivalents, end of period	471,955	426,380
Cash paid during the period for:
Interest	197,164	214,819
Income taxes	46,147	27,192
Noncash investing and financing transactions:
Transfer to other bank owned assets	7,821	6,659
Right-of-use assets obtained in exchange for lease obligations	1,131	1,387
Transfer to securities available-for-sale in settlement of loans	$ 0	$ 10,448