Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income	$ 20,317	$ 32,603
Adjustments to reconcile net income to net cash provided by operating activities:
Reversal of provision for credit losses	(3,450)	(11,283)
Depreciation of premises and equipment	1,101	1,173
Net amortization of investment securities premiums and discounts	472	768
Net gain on sales of investment securities	(30)	(65)
Net gain on mortgage banking activities	(1,929)	(5,938)
Bank owned life insurance income	(699)	(717)
Stock-based compensation	934	874
Intangible expenses	341	249
Other adjustments to reconcile net income to cash used in operating activities	(910)	(2,036)
Originations of loans held for sale	(73,541)	(142,877)
Proceeds from the sale of loans held for sale	82,616	163,052
Contributions to pension and other postretirement benefit plans	(63)	(66)
Decrease (increase) in accrued interest receivable and other assets	4,316	(5,488)
Decrease in accrued interest payable and other liabilities	(5,535)	(376)
Net cash provided by operating activities	23,940	29,873
Cash flows from investing activities:
Proceeds from sale of premises and equipment	6,170	0
Purchases of premises and equipment	(676)	(1,311)
Proceeds from maturities, calls and principal repayments of securities held-to-maturity	14,335	20,197
Proceeds from maturities, calls and principal repayments of securities available-for-sale	8,501	12,708
Proceeds from sales of securities available-for-sale	1,530	1,563
Purchases of investment securities held-to-maturity	(3,936)	(4,625)
Purchases of investment securities available-for-sale	(63,634)	(32,540)
Proceeds from sales of money market mutual funds	2,508	2,020
Purchases of money market mutual funds	(2,077)	(2,150)
Net decrease in other investments	1,856	2,612
Net increase in loans and leases	(90,783)	(108,296)
Net cash used in investing activities	(126,206)	(109,822)
Cash flows from financing activities:
Net (decrease) increase in deposits	(7,200)	68,869
Net (decrease) increase in short-term borrowings	(1,130)	8,770
Repayment of long-term debt	0	(15,000)
Repayment of subordinated debt	0	(10,000)
Payment of contingent consideration on acquisitions	0	(29)
Payment, Tax Withholding, Share-based Payment Arrangement	(863)	(355)
Purchases of treasury stock	0	(295)
Stock issued under dividend reinvestment and employee stock purchase plans	623	609
Proceeds from exercise of stock options	576	759
Cash dividends paid	(6,109)	(5,920)
Net cash (used in) provided by financing activities	(14,103)	47,408
Net decrease in cash and cash equivalents	(116,369)	(32,541)
Cash and cash equivalents at beginning of year	890,150	219,858
Cash and cash equivalents at end of period	773,781	187,317
Supplemental disclosures of cash flow information:
Cash paid for interest	5,559	6,856
Cash paid for income taxes, net of refunds	28	130
Transfer of loans to other real estate owned	$ 0	$ 126