Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
ASSETS
Loans	$ 18,972,158	$ 17,170,871
Allowance for credit losses on loans	(164,346)	(194,771)
Net loans	18,807,812	16,976,100
Loans held for sale	750	1,277
Securities:
Available for sale (amortized cost of $8,317,505 and $11,822,584, respectively)	7,739,216	11,976,514
Held to maturity, net of allowance for credit losses of $2,259 and $1,940, respectively (fair value of $5,245,451 and $1,442,391, respectively)	5,707,282	1,478,476
Trading securities	9,646	31,875
Other securities	342,543	327,098
Total securities	13,798,687	13,813,963
Federal funds sold and securities purchased under agreements to resell	1,055,459	1,216,357
Interest-bearing due from banks	1,825,295	8,841,906
Cash and due from banks	360,242	413,821
Premises and equipment, net	257,729	270,933
Accrued income	144,874	131,102
Goodwill	182,225	174,518
Other intangibles, net	14,465	14,416
Other assets	1,060,303	839,091
Total assets	37,507,841	42,693,484
Deposits:
Noninterest-bearing demand	14,925,555	16,342,642
Interest-bearing demand and savings	16,007,087	18,405,644
Time deposits under $250,000	383,832	403,660
Time deposits of $250,000 or more	169,550	447,981
Total deposits	31,486,024	35,599,927
Federal funds purchased and repurchase agreements	2,661,283	3,238,435
Long-term debt	272,505	271,544
Accrued expenses and taxes	182,185	249,492
Other liabilities	262,956	188,662
Total liabilities	34,864,953	39,548,060
SHAREHOLDERS' EQUITY
Common stock, $1.00 par value; 80,000,000 shares authorized; 55,056,730 shares issued, 48,305,286 and 48,430,805 shares outstanding, respectively	55,057	55,057
Capital surplus	1,115,504	1,110,520
Retained earnings	2,384,454	2,176,998
Accumulated other comprehensive (loss) income, net	(564,803)	126,314
Treasury stock, 6,751,444 and 6,625,925 shares, at cost, respectively	(347,324)	(323,465)
Total shareholders' equity	2,642,888	3,145,424
Total liabilities and shareholders' equity	$ 37,507,841	$ 42,693,484