Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 484,315	$ 432,104
Interest-bearing bank deposits	778,363	109,961
Federal funds sold	694	268
Securities available for sale, at fair value (amortized cost of $5,410,502 and $4,637,610)	5,647,315	4,675,304
Securities held to maturity (fair value of $1,517,688 and $1,611,004)	1,408,961	1,568,009
Loans held for sale	103,566	55,864
Loans	22,240,204	21,212,755
Less: allowance for loan losses	(448,674)	(191,251)
Loans, net	21,791,530	21,021,504
Property and equipment, net of accumulated depreciation of $266,241 and $249,527	384,329	380,209
Right of use assets, net of accumulated amortization of $20,309 and $12,194	114,420	110,023
Prepaid expenses	40,003	40,178
Other real estate and foreclosed assets, net	11,640	30,405
Accrued interest receivable	112,686	92,037
Goodwill	855,453	855,453
Other intangible assets, net	91,505	106,807
Life insurance contracts	611,713	608,063
Funded pension assets, net	191,946	185,791
Other assets	564,885	328,777
Total assets	33,193,324	30,600,757
Deposits
Noninterest-bearing	11,881,548	8,775,632
Interest-bearing	15,149,111	15,027,943
Total deposits	27,030,659	23,803,575
Short-term borrowings	1,906,895	2,714,872
Long-term debt	385,887	233,462
Accrued interest payable	7,336	10,200
Lease liabilities	134,007	127,703
Deferred tax liability, net	46,665	37,721
Other liabilities	306,231	205,539
Total liabilities	29,817,680	27,133,072
Stockholders' equity:
Common stock	309,513	309,513
Capital surplus	1,755,315	1,736,664
Retained earnings	1,211,878	1,476,232
Accumulated other comprehensive income (loss), net	98,938	(54,724)
Total stockholders' equity	3,375,644	3,467,685
Total liabilities and stockholders' equity	$ 33,193,324	$ 30,600,757
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	86,400,000	87,515,000