Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Loans	$ 11,280,513	$ 10,540,383
Allowance for loan losses	(100,604)	(91,649)
Net loans	11,179,909	10,448,734
Loans held for sale	1,460	5,279
Securities:
Available for sale	6,258,577	6,466,334
Held to maturity (fair value of $1,207,447 and $1,106,027, respectively)	1,261,014	1,115,932
Trading securities	54,055	39,536
Other securities	65,897	68,306
Total investment securities	7,639,543	7,690,108
Federal funds sold and securities purchased under agreements to resell	191,601	324,327
Interest-bearing due from banks	1,351,760	715,823
Cash and due from banks	392,723	422,117
Premises and equipment, net	275,942	289,007
Accrued income	98,863	99,045
Goodwill	180,867	180,867
Other intangibles, net	20,257	26,630
Other assets	438,658	425,205
Discontinued Assets		55,390
Total assets	21,771,583	20,682,532
Deposits:
Noninterest-bearing demand	6,839,171	6,654,584
Interest-bearing demand and savings	9,903,565	8,780,309
Time deposits under $250,000	547,990	613,589
Time deposits of $250,000 or more	732,274	522,132
Total deposits	18,023,000	16,570,614
Federal funds purchased and repurchase agreements	1,260,704	1,856,937
Long-term debt	79,281	76,772
Accrued expenses and taxes	191,464	172,967
Other liabilities	35,603	42,858
Total liabilities	19,590,052	18,720,148
SHAREHOLDERS’ EQUITY
Common stock, $1.00 par value; 80,000,000 shares authorized, 55,056,730 shares issued and 49,894,990 and 49,673,056 shares outstanding, respectively	55,057	55,057
Capital surplus	1,046,095	1,033,419
Retained earnings	1,338,110	1,142,887
Accumulated other comprehensive loss, net	(45,525)	(57,542)
Treasury stock, 5,161,740 and 5,383,674 shares, at cost, respectively	(212,206)	(211,437)
Total shareholders' equity	2,181,531	1,962,384
Total liabilities and shareholders' equity	$ 21,771,583	$ 20,682,532