Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
ASSETS
Cash and due from banks	$ 500,828	$ 561,202
Interest-bearing bank deposits	581,216	626,646
Federal funds sold	393	436
Securities available for sale, at fair value (amortized cost of $5,605,849 and $5,496,718)	4,965,214	4,915,195
Securities held to maturity (fair value of $2,347,957 and $2,485,918)	2,570,622	2,684,779
Loans held for sale (includes $26,051 and $13,269 measured at fair value)	27,354	26,124
Loans	23,911,616	23,921,917
Less: allowance for loan losses	(316,148)	(307,907)
Loans, net	23,595,468	23,614,010
Property and equipment, net of accumulated depreciation of $334,290 and $318,746	289,282	301,639
Right of use assets, net of accumulated amortization of $61,608 and $55,815	98,561	105,799
Prepaid expenses	54,668	45,234
Other real estate and foreclosed assets, net	2,114	3,628
Accrued interest receivable	154,394	157,179
Goodwill	855,453	855,453
Other intangible assets, net	39,722	44,637
Life insurance contracts	759,673	749,495
Funded pension assets, net	248,489	216,849
Deferred tax asset, net	166,390	153,384
Other assets	502,450	516,884
Total assets	35,412,291	35,578,573
Deposits
Noninterest-bearing	10,642,213	11,030,515
Interest-bearing	18,558,505	18,659,544
Total deposits	29,200,718	29,690,059
Short-term borrowings	1,363,959	1,154,829
Long-term debt	236,393	236,317
Accrued interest payable	27,126	45,000
Lease liabilities	117,752	125,618
Other liabilities	545,625	523,089
Total liabilities	31,491,573	31,774,912
Stockholders' equity:
Common stock	309,513	309,513
Capital surplus	1,732,084	1,739,671
Retained earnings	2,537,057	2,375,604
Accumulated other comprehensive loss, net	(657,936)	(621,127)
Total stockholders' equity	3,920,718	3,803,661
Total liabilities and stockholders' equity	$ 35,412,291	$ 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	86,355,000	86,345,000