Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 541,351	$ 564,459
Interest-bearing bank deposits	817,478	323,332
Federal funds sold	471	728
Securities available for sale, at fair value (amortized cost of $6,085,309 and $6,310,214)	5,188,156	5,556,041
Securities held to maturity (fair value of $2,430,287 and $2,615,398 )	2,727,945	2,852,495
Loans held for sale (includes $13,298 and $10,843 measured at fair value)	15,862	26,385
Loans	23,983,679	23,114,046
Less: allowance for loan losses	(306,291)	(307,789)
Loans, net	23,677,388	22,806,257
Property and equipment, net of accumulated depreciation of $310,928 and $303,451	309,909	328,605
Right of use assets, net of accumulated amortization of $52,572 and $44,901	106,918	96,884
Prepaid expenses	56,782	44,632
Other real estate and foreclosed assets, net	4,527	2,017
Accrued interest receivable	152,437	131,849
Goodwill	855,453	855,453
Other intangible assets, net	47,309	56,193
Life insurance contracts	745,741	729,774
Funded pension assets, net	219,456	216,818
Deferred tax asset, net	244,774	211,418
Other assets	586,344	380,485
Total assets	36,298,301	35,183,825
Deposits
Noninterest-bearing	11,626,371	13,645,113
Interest-bearing	18,693,966	15,425,236
Total deposits	30,320,337	29,070,349
Short-term borrowings	1,425,928	1,871,271
Long-term debt	236,279	242,077
Accrued interest payable	52,569	9,935
Lease liabilities	126,673	116,422
Other liabilities	635,512	531,143
Total liabilities	32,797,298	31,841,197
Stockholders' equity:
Common stock	309,513	309,513
Capital surplus	1,735,098	1,716,884
Retained earnings	2,351,386	2,088,413
Accumulated other comprehensive loss, net	(894,994)	(772,182)
Total stockholders' equity	3,501,003	3,342,628
Total liabilities and stockholders' equity	$ 36,298,301	$ 35,183,825
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	86,148,000	85,941,000