Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities:
Net income	$ 22,395	$ 20,305
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	2,311	1,432
Depreciation of premises and equipment	1,351	1,341
Net amortization of investment securities premiums and discounts	229	262
Amortization, fair market value adjustments and capitalization of servicing rights	118	3,302
Net gain on mortgage banking activities	(647)	(939)
Bank owned life insurance income	(1,959)	(842)
Stock-based compensation	1,067	1,025
Intangible expenses	130	187
Other adjustments to reconcile net income to cash used in operating activities	(480)	(710)
Originations of loans held for sale	(37,126)	(48,450)
Proceeds from the sale of loans held for sale	41,441	47,981
Contributions to pension and other postretirement benefit plans	(62)	(63)
Increase in accrued interest receivable and other assets	(4,472)	(6,998)
Decrease in accrued interest payable and other liabilities	(8,693)	(6,265)
Net cash provided by operating activities	15,603	11,568
Cash flows from investing activities:
Proceeds from sale of premises and equipment	83	2,440
Purchases of premises and equipment	(1,948)	(1,040)
Proceeds from maturities, calls and principal repayments of securities held-to-maturity	3,140	3,308
Proceeds from maturities, calls and principal repayments of securities available-for-sale	11,429	8,628
Purchases of investment securities held-to-maturity	0	(1,100)
Purchases of investment securities available-for-sale	(11,565)	(11,059)
Proceeds from sales of equity securities	1,981	616
Purchases of money market mutual funds	(1,142)	(714)
Net decrease in other investments	3,248	3,105
Net increase in loans and leases	(10,393)	(12,965)
Proceeds from sales of foreclosed / repossessed assets	239	0
Purchases of bank owned life insurance	0	(5,710)
Proceeds from bank owned life insurance	1,828	0
Net cash used in investing activities	(3,100)	(14,491)
Cash flows from financing activities:
Net (decrease) increase in deposits	(100,764)	29,571
Net decrease in short-term borrowings	(7,150)	(1,490)
Repayment of long-term debt	(50,000)	(60,000)
Payment of contingent consideration on acquisitions	(635)	(635)
Payment for shares withheld to cover taxes on vesting of restricted stock units	(1,575)	(830)
Purchases of treasury stock	(6,544)	(6,478)
Stock issued under dividend reinvestment and employee stock purchase plans	574	648
Proceeds from exercise of stock options	280	150
Cash dividends paid	(6,399)	(6,206)
Net cash used in financing activities	(172,213)	(45,270)
Net decrease in cash and cash equivalents	(159,710)	(48,193)
Cash and cash equivalents at beginning of year	328,844	249,799
Cash and cash equivalents at end of period	169,134	201,606
Supplemental disclosures of cash flow information:
Cash paid for interest	49,547	45,292
Cash paid for income taxes, net of refunds	70	122
Transfer of loans to other real estate owned	2,526	0
Transfer of leases to repossessed assets	$ 17	$ 167