Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash Flows From Operating Activities
Net income	$ 53,984	$ 44,564
Reconciliation of net income to net cash provided by operating activities:
Provision for credit losses	1,741	14,863
Net security premium amortization	4,448	4,731
Deferred income taxes	(1,358)	(2,324)
Loan discount accretion	(5,645)	(7,151)
Deposit and debt discount accretion, net	886	2,317
Foreclosed property gains, net	(153)	(35)
Securities losses, net	1,161	0
Other gains, net	(555)	(561)
Bank-owned life insurance income	(2,343)	(2,112)
Net amortization of deferred loan costs/(fees)	(886)	(590)
Depreciation of premises and equipment	4,029	3,778
Amortization of operating lease right-of-use assets	990	1,090
Repayments of lease obligations	(949)	(1,014)
Stock-based compensation expense	2,093	2,245
Amortization of intangible assets	3,428	4,194
Amortization and impairment of SBA servicing assets	890	494
Gains on sale of loans	(3,157)	(1,914)
Origination of presold mortgage loans in process of settlement and SBA loans held for sale	(76,938)	(64,117)
Proceeds from sales of presold mortgage loans in process of settlement and SBA loans	82,784	57,369
Increase in accrued interest receivable	1,746	2,001
Decrease in other assets	952	4,048
Increase in accrued interest payable	29	1,725
Decrease in other liabilities	453	1,553
Net cash provided by operating activities	67,630	65,154
Cash Flows From Investing Activities
Proceeds from maturities, calls and principal repayments of securities available for sale	167,698	96,686
Proceeds from maturities, calls and principal repayments of securities held to maturity	6,867	1,587
Proceeds from sales of securities available for sale	138,182	111,862
Proceeds from sale of VISA B shares	4,522	0
Purchases of Federal Reserve and FHLB stock	(15,804)	(51,177)
Redemptions of Federal Reserve and FHLB stock	28,880	35,892
Proceeds from bank owned life insurance death benefits	209	137
Purchases of other investments	(1,465)	0
Net decrease (increase) in loans	75,748	(226,193)
Proceeds from sales of foreclosed properties	217	192
Purchases of premises and equipment	(1,721)	(1,854)
Proceeds from sales of premises and equipment	10	45
Net cash received in acquisition activities	0	22,610
Net cash provided by (used in) investing activities	403,343	(10,213)
Cash Flows From Financing Activities
Net increase (decrease) in deposits	455,723	(106,165)
Proceeds from the issuance of other borrowings	481,000	1,224,500
Repayment of other borrowings	(1,010,024)	(1,069,569)
Repayment of subordinated debentures	(10,000)	0
Cash dividends paid – common stock	(18,094)	(16,867)
Proceeds from stock option exercises	1,105	3,703
Payment of taxes related to stock withheld	(126)	(186)
Net cash (used) provided by financing activities	(100,416)	35,416
Increase in cash and cash equivalents	370,557	90,357
Cash and cash equivalents, beginning of period	237,855	270,318
Cash and cash equivalents, end of period	608,412	360,675
Supplemental Disclosures of Cash Flow Information:
Cash paid during the period for interest	94,342	54,694
Cash paid during the period for income taxes	14,382	12,917
Non-cash: Unrealized (loss) gain on securities available for sale, net of taxes	(7,200)	3,765
Non-cash: Foreclosed loans transferred to other real estate	0	576
Non-cash: Accrued dividends at end of period	9,061	9,038
Cancellation Of Operating Lease Right-Of-Use Assets And Operating Lease Liabilities, Non Cash	$ (1,497)	$ 0