Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
ASSETS
Cash and due from banks	$ 698,274	$ 401,201
Interest-bearing bank deposits	785,738	3,830,177
Federal funds sold	85,458	458
Securities available for sale, at fair value (amortized cost of $6,358,434 and $6,984,530)	5,779,381	6,986,698
Securities held to maturity (fair value of $2,615,798 and $1,631,482)	2,752,012	1,565,751
Loans held for sale (includes $21,496 and $41,022 measured at fair value)	44,253	93,069
Loans	21,846,068	21,134,282
Less: allowance for loan losses	(308,175)	(342,065)
Loans, net	21,537,893	20,792,217
Property and equipment, net of accumulated depreciation of $290,880 and $280,065	352,011	350,309
Right of use assets, net of accumulated amortization of $40,312 and $34,425	98,664	102,239
Prepaid expenses	50,095	38,793
Other real estate and foreclosed assets, net	3,467	7,533
Accrued interest receivable	101,172	96,938
Goodwill	855,453	855,453
Other intangible assets, net	62,892	70,226
Life insurance contracts	725,664	664,535
Funded pension assets, net	230,627	227,870
Other assets	367,458	447,738
Deferred tax asset, net	107,013
Total assets	34,637,525	36,531,205
Deposits
Noninterest-bearing	14,676,342	14,392,808
Interest-bearing	15,190,090	16,073,089
Total deposits	29,866,432	30,465,897
Short-term borrowings	630,011	1,665,061
Long-term debt	240,091	244,220
Accrued interest payable	2,005	3,103
Lease liabilities	118,572	122,079
Deferred tax liability, net		19,434
Other liabilities	430,691	341,059
Total liabilities	31,287,802	32,860,853
Stockholders' equity:
Common stock	309,513	309,513
Capital surplus	1,710,898	1,755,701
Retained earnings	1,856,489	1,659,073
Accumulated other comprehensive loss, net	(527,177)	(53,935)
Total stockholders' equity	3,349,723	3,670,352
Total liabilities and stockholders' equity	$ 34,637,525	$ 36,531,205
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	85,714,000	86,749,000