CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net income	$ 101,292	$ 47,555	$ 34,767
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion, net	17,319	24,643	25,639
(Recovery of) provision for credit losses	(3,510)	731	26,254
Bank owned life insurance income	(2,624)	(1,767)	(1,977)
Net loss on investment securities	61	862	368
Fair value adjustment on equity investment securities	(2)	(111)	(660)
Loans originated for sale	(48,081)	(94,154)	(260,974)
Proceeds from sales of loans	50,442	157,349	268,363
Net gains on sales of loans	(994)	(2,994)	(6,446)
Deferred income tax expense (benefit)	18,566	2,874	(8,101)
(Decrease) increase in accrued expenses	(4,692)	2,433	799
(Increase) decrease in interest receivable	(5,836)	1,435	(865)
Increase in other assets	1,629	2,874	1,006
Change in lease right-of-use assets and lease liabilities	(38)	509	48
Other, net	(3,693)	14,181	7,262
Net cash provided by operating activities	119,839	156,420	85,483
Available-for-sale investment securities:
Purchases	(246,155)	(852,542)	(261,395)
Proceeds from sales	28,663	544,096	82,610
Proceeds from principal payments, calls and prepayments	190,143	297,693	356,854
Held-to-maturity investment securities:
Purchases	(206,768)	(316,346)	(40,112)
Proceeds from principal payments	19,033	7,333	5,123
Other investment securities:
Purchases	(23,632)	(1,415)	(6,261)
Proceeds from sales	5,784	9,299	12,180
Net (increase) decrease in loans held for investment	(58,142)	113,467	(444,128)
Net expenditures for premises and equipment	(6,753)	(6,685)	(4,299)
Proceeds from sales of other real estate owned	572	2,073	269
Investment in bank owned life insurance	(30,000)	0	0
Proceeds from bank owned life insurance	689	0	108
Business acquisitions, net of cash received	(85,791)	132,719	(94,856)
Investment in limited partnership and tax credit funds	(1,857)	(4,125)	(12)
Net cash used in investing activities	(414,214)	(74,433)	(393,919)
Financing activities:
Net (decrease) increase in non-interest-bearing deposits	(52,020)	150,986	326,115
Net (decrease) increase in interest-bearing deposits	(93,082)	49,774	292,822
Net increase (decrease) in short-term borrowings	328,611	14,414	(263,716)
Proceeds from long-term borrowings	24,804	0	50,000
Payments on long-term borrowings	(125,345)	(2,132)	(2,715)
Cash dividends paid	(42,372)	(31,002)	(27,052)
Repurchase of treasury stock under share repurchase program	(7,407)	0	(29,281)
Purchase of treasury stock in connection with employee incentive program and compensation plan for Boards of Directors to be held as treasury stock	(1,745)	(1,306)	(1,128)
Proceeds from issuance of common shares	1,226	906	594
Contingent consideration payments made after a business acquisition	0	0	(296)
Net cash provided by financing activities	32,670	181,640	345,343
Net (decrease) increase in cash and cash equivalents	(261,705)	263,627	36,907
Cash and cash equivalents at beginning of period	415,727	152,100	115,193
Cash and cash equivalents at end of period	154,022	415,727	152,100
Supplemental cash flow information:
Interest paid	16,270	13,391	18,939
Income taxes paid	4,131	6,693	12,500
Supplemental noncash disclosures:
Transfers from loans to other real estate owned	110	298	296
Noncash recognition of new leases	$ 880	$ 2,482	$ 62