Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Assets:
Cash and due from banks	$ 574,910	$ 561,202
Interest-bearing bank deposits	939,306	626,646
Federal funds sold	409	436
Securities available for sale, at fair value (amortized cost of $5,774,133 and $5,496,718)	5,161,491	4,915,195
Securities held to maturity (fair value of $2,233,526 and $2,485,918)	2,435,663	2,684,779
Loans held for sale (includes $18,929 and $13,269 measured at fair value)	21,525	26,124
Loans	23,299,447	23,921,917
Less: allowance for loan losses	(318,882)	(307,907)
Loans, net	22,980,565	23,614,010
Property and equipment, net of accumulated depreciation of $345,962 and $318,746	279,767	301,639
Right of use assets, net of accumulated amortization of $67,063 and $55,815	98,822	105,799
Prepaid expense	45,763	45,234
Other real estate and foreclosed assets, net	27,797	3,628
Accrued interest receivable	143,237	157,179
Goodwill	855,453	855,453
Other intangible assets, net	35,224	44,637
Life insurance contracts	774,542	749,495
Funded pension assets, net	260,003	216,849
Deferred tax asset, net	146,567	153,384
Other assets	300,741	516,884
Total assets	35,081,785	35,578,573
Deposits:
Noninterest-bearing	10,597,461	11,030,515
Interest-bearing	18,895,390	18,659,544
Total deposits	29,492,851	29,690,059
Short-term borrowings	639,015	1,154,829
Long-term debt	210,544	236,317
Accrued interest payable	20,148	45,000
Lease liabilities	117,817	125,618
Other liabilities	473,774	523,089
Total liabilities	30,954,149	31,774,912
Stockholders' equity:
Common stock	309,513	309,513
Capital surplus	1,719,609	1,739,671
Retained earnings	2,704,606	2,375,604
Accumulated other comprehensive loss, net	(606,092)	(621,127)
Total stockholders' equity	4,127,636	3,803,661
Total liabilities and stockholders' equity	$ 35,081,785	$ 35,578,573
Preferred shares authorized (par value of $20.00 per share)	50,000,000	50,000,000
Common shares authorized (par value of $3.33 per share)	350,000,000	350,000,000
Common shares issued	92,947,000	92,947,000
Common shares outstanding	86,124,000	86,345,000