Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 563,736	$ 564,459
Interest-bearing bank deposits	673,650	323,332
Federal funds sold	513	728
Securities available for sale, at fair value (amortized cost of $6,151,183 and $6,310,214)	5,414,689	5,556,041
Securities held to maturity (fair value of $2,540,256 and $2,615,398 )	2,780,990	2,852,495
Loans held for sale (includes $24,163 and $10,843 measured at fair value)	55,902	26,385
Loans	23,789,886	23,114,046
Less: allowance for loan losses	(314,496)	(307,789)
Loans, net	23,475,390	22,806,257
Property and equipment, net of accumulated depreciation of $310,257 and $303,451	326,534	328,605
Right of use assets, net of accumulated amortization of $49,510 and $44,901	106,399	96,884
Prepaid expenses	58,762	44,632
Other real estate and foreclosed assets, net	2,174	2,017
Accrued interest receivable	141,442	131,849
Goodwill	855,453	855,453
Other intangible assets, net	50,122	56,193
Life insurance contracts	740,626	729,774
Funded pension assets, net	216,149	216,818
Deferred tax asset, net	200,910	211,418
Other assets	546,707	380,485
Total assets	36,210,148	35,183,825
Deposits
Noninterest-bearing	12,171,817	13,645,113
Interest-bearing	17,871,684	15,425,236
Total deposits	30,043,501	29,070,349
Short-term borrowings	1,629,538	1,871,271
Long-term debt	236,241	242,077
Accrued interest payable	35,639	9,935
Lease liabilities	125,750	116,422
Other liabilities	585,003	531,143
Total liabilities	32,655,672	31,841,197
Stockholders' equity:
Common stock	309,513	309,513
Capital surplus	1,727,745	1,716,884
Retained earnings	2,280,004	2,088,413
Accumulated other comprehensive loss, net	(762,786)	(772,182)
Total stockholders' equity	3,554,476	3,342,628
Total liabilities and stockholders' equity	$ 36,210,148	$ 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	86,123,000	85,941,000