CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 83,625	$ 80,703
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	6,200	6,132
Provision for credit losses	11,949	11,340
Stock-based compensation expense	1,872	2,153
Deferred compensation expense accrued	4,373	4,188
Gains on other real estate owned, net	(223)	(84)
Amortization of premiums on securities, net	871	964
Caplet amortization	376	638
Fair value loss on derivatives and trading securities	999	680
Ineffectiveness on fair value hedges	16
Securities losses, net		451
Loans originated for sale	(57,256)	(55,271)
Proceeds on sales of loans	60,087	57,171
Gains on sales of residential real estate loans	(1,307)	(1,288)
Gains on sales of government guaranteed portions of loans	(36)	(30)
Proceeds from loan securitizations	193,520
Net gain on securitizations	473
Losses on sales and disposals of premises and equipment	143	386
Amortization of intangibles	2,070	2,222
Accretion of acquisition fair value adjustments, net	(463)	(1,501)
Increase in cash value of bank-owned life insurance	(2,414)	(2,221)
Gain on bank-owned life insurance death benefits	(2,232)	(1,131)
Goodwill impairment	432
Increase in other assets	(7,628)	(34,126)
Decrease (increase) in other liabilities	(28,239)	13,973
Net cash provided by operating activities	267,208	85,349
CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease in federal funds sold	22,250	36,610
Net (increase) decrease in interest-bearing deposits at financial institutions	(41,040)	7,010
Proceeds from sales of other real estate owned	1,687	295
Activity in securities portfolio:
Purchases	(148,091)	(102,669)
Calls, maturities and redemptions	35,284	76,011
Paydowns	13,528	11,660
Sales	445	30,556
Activity in restricted investment securities:
Purchases	(6,272)	(4,908)
Redemptions	8,534	3,661
Net increase in loans/leases originated and held for investment	(525,328)	(479,757)
Purchase of premises and equipment	(30,542)	(8,023)
Proceeds from sales of premises and equipment	2	510
Purchase of swaptions	(4,500)
Proceeds from bank-owned life insurance death benefits	4,085	2,543
Net cash used in investing activities	(669,958)	(426,501)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposit accounts	470,628	510,635
Net increase (decrease) in short-term borrowings	1,250	(129,160)
Activity in Federal Home Loan Bank advances:
Term advances	10,383	135,000
Net change in short-term and overnight advances	(70,000)	(120,000)
Payment of cash dividends on common stock	(4,032)	(3,026)
Proceeds from issuance of common stock, net	1,238	931
Repurchase and cancellation of shares		(8,686)
Net cash provided by financing activities	409,467	385,694
Net increase (decrease) in cash and due from banks	6,717	44,542
Cash and due from banks, beginning	97,123	59,723
Cash and due from banks, ending	103,840	104,265
Supplemental disclosure of cash flow information, cash payments for:
Interest	188,761	(258,779)
Income/franchise taxes	4,353	2,214
Supplemental schedule of noncash investing activities:
Change in accumulated other comprehensive income (loss), unrealized gains (losses) on securities available for sale and derivative instruments, net	6,317	(16,426)
Increase in fair value of fair value hedges		3,997
Transfers of loans to other real estate owned	486	218
Transfer of loans to held for sale for securitizations in preparation	165,941	277,995
Beneficial interests (trading securities) acquired in securitizations	36,670
Increase in the fair value of back-to-back interest rate swap assets and liabilities	$ 73,885	110,641
Dividends payable		1,003
Measurement period adjustment to goodwill		$ 1,420