Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income	$ 56,990	$ 54,850
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	3,553	8,839
Depreciation of premises and equipment	4,096	3,752
Net amortization of investment securities premiums and discounts	794	873
Amortization, fair market value adjustments and capitalization of servicing rights	3,290	(350)
Net gain on sales of investment securities	(18)	0
Net gain on mortgage banking activities	(3,945)	(2,880)
Bank owned life insurance income	(2,849)	(2,362)
Stock-based compensation	3,414	3,229
Intangible expenses	539	726
Other adjustments to reconcile net income to cash used in operating activities	(1,881)	(1,105)
Originations of loans held for sale	(235,166)	(165,076)
Proceeds from the sale of loans held for sale	234,788	162,728
Contributions to pension and other postretirement benefit plans	(187)	(186)
Increase in accrued interest receivable and other assets	(14,980)	(8,200)
(Decrease) increase in accrued interest payable and other liabilities	(1,376)	7,029
Net cash provided by operating activities	47,062	61,867
Cash flows from investing activities:
Proceeds from sale of premises and equipment	2,450	1,032
Purchases of premises and equipment	(2,467)	(5,220)
Proceeds from maturities, calls and principal repayments of securities held-to-maturity	10,462	11,225
Proceeds from maturities, calls and principal repayments of securities available-for-sale	43,146	24,052
Proceeds from sales of securities available-for-sale	505	0
Purchases of investment securities held-to-maturity	(2,640)	(6,253)
Purchases of investment securities available-for-sale	(37,794)	(19,348)
Proceeds from sales of equity securities	3,437	252
Purchases of money market mutual funds	(2,482)	(1,845)
Net decrease (increase) in other investments	264	(8,576)
Proceeds from sale of loans originally held-for-investment	0	19,631
Net increase in loans and leases	(165,648)	(481,200)
Proceeds from sales of foreclosed / repossessed assets	68	260
Purchases of bank owned life insurance	(5,710)	(7,862)
Proceeds from bank owned life insurance	1,159	0
Net cash used in investing activities	(155,250)	(473,852)
Cash flows from financing activities:
Net increase in deposits	478,350	525,619
Net increase (decrease) in short-term borrowings	1,950	(182,465)
Proceeds from issuance of long-term debt	0	250,000
Repayment of long-term debt	(85,000)	(25,000)
Payment of contingent consideration on acquisitions	(635)	(635)
Payment for shares withheld to cover taxes on vesting of restricted stock units	(859)	(1,232)
Purchases of treasury stock	(14,706)	0
Stock issued under dividend reinvestment and employee stock purchase plans	1,855	1,979
Proceeds from exercise of stock options	877	114
Cash dividends paid	(18,743)	(18,853)
Net cash provided by financing activities	363,089	549,527
Net decrease in cash and cash equivalents	254,901	137,542
Cash and cash equivalents at beginning of year	249,799	152,799
Cash and cash equivalents at end of period	504,700	290,341
Supplemental disclosures of cash flow information:
Cash paid for interest	140,759	93,435
Cash paid for income taxes, net of refunds	15,740	13,232
Transfer of loans to other real estate owned	407	79
Transfer of leases to repossessed assets	167	0
Transfer of loans to loans held for sale	$ 0	$ 25,646