CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities
Net income	$ 50,689	$ 70,403
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for (recapture of) credit losses	11,160	10,479
Depreciation and amortization	7,395	7,520
Stock-based compensation expense	5,866	4,616
Pension expense (income)	1,475	875
Net amortization (accretion) on investment securities	1,297	1,894
Net (gain) loss on sales of investment securities	5,277	19
Unrealized gain (loss) on equity securities	(90)	(140)
Originations of loans held for sale	(80,504)	(42,174)
Net gains from sales of loans held for sale	(3,784)	(2,335)
Proceeds from sales of loans held for sale	81,967	41,926
Deferred income taxes	12,828	(8,844)
Operating Lease, Right-of-Use Asset, Amortization Expense	2,044	1,914
Payments for operating leases	(2,121)	(1,970)
Decrease (increase) cash surrender value of life insurance	1,055	766
Decrease (increase) in interest receivable	(2,668)	(1,866)
(Decrease) increase in interest payable	(3,284)	18,746
Decrease (increase) in other assets	(25,049)	145,295
(Decrease) increase in other liabilities	(29,512)	(73,386)
Net cash provided by (used in) operating activities	31,931	172,206
Investing activities
Proceeds from Sale of Debt Securities, Available-for-sale	211,959	0
Proceeds from calls, paydowns and maturities of securities available-for-sale	123,893	89,066
Payments to Acquire Debt Securities, Available-for-sale	127,529	27,240
Proceeds from calls, paydowns and maturities of securities held-to-maturity	849	1,009
Proceeds from Sale of Other Investments	11,559	0
Proceeds from Maturities, Prepayments and Calls of Other Investments	4,873	0
Payments to Acquire Other Investments	9,704	306
Net decrease (increase) in interest-bearing deposits with other banks	41,670	82,717
Net decrease (increase) in loans and leases	(189,224)	(133,223)
Proceeds from disposal of other real estate owned	0	0
Purchases of premises and equipment	(7,122)	(4,493)
Net change in operating leases	(8,259)	(62,248)
Cash consideration	(96,887)	(3,400)
Proceeds from Life Insurance Policy	592	627
Net cash provided by (used in) investing activities	(43,330)	(57,491)
Financing activities
Net (decrease) increase in total deposits	96,351	(26,493)
Net (decrease) increase in short-term borrowings	(75,669)	(69,596)
Payments of long-term debt	1,067	4,215
Cash dividends paid on common stock	(21,868)	(22,111)
Proceeds from exercise of stock options	0	34
Net cash provided by (used in) financing activities	(2,253)	(122,381)
Cash and due from banks:
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(13,652)	(7,666)
Cash and due from bank at beginning of period	213,059	207,501
Cash and due from bank at end of period	199,407	199,835
Supplemental Disclosures
Interest Paid	95,230	30,518
Income Taxes Paid	14	324
Noncash or Part Noncash Acquisition, Investments Acquired	55,965	0
Supplemental schedule for investing activities
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets, Net Of Purchase Consideration	914	(3,290)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	2,702	941
Goodwill	$ 1,788	$ 4,231