Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets:
Cash and due from banks	$ 559,787	$ 702,485
Interest-bearing deposits	2,689,717	3,630,846
Federal funds sold and resell agreements	19,042	30,792
Total cash and cash equivalents	3,268,546	4,364,123
Securities held to maturity, at amortized cost	2,795,676	2,926,486
Securities available for sale, at estimated fair value	8,643,586	8,461,254
Trading account securities	16,596	15,426
Loans, net of unearned discounts	11,400,824	10,987,535
Less: Allowance for loan losses	(106,607)	(99,542)
Net loans	11,294,217	10,887,993
Premises and equipment, net	525,692	442,170
Goodwill	654,668	654,668
Other intangible assets, net	10,382	12,125
Cash surrender value of life insurance policies	173,639	172,050
Accrued interest receivable and other assets	398,591	341,480
Total assets	27,781,593	28,277,775
Liabilities:
Non-interest-bearing demand deposits	10,157,812	10,149,061
Interest-bearing deposits	13,683,342	13,986,869
Total deposits	23,841,154	24,135,930
Federal funds purchased and repurchase agreements	592,364	803,119
Junior subordinated deferrable interest debentures	137,115	137,115
Other long-term borrowings	100,000	100,000
Accrued interest payable and other liabilities	239,293	250,208
Total liabilities	24,909,926	25,426,372
Shareholders’ Equity:
Preferred stock, par value $0.01 per share; 10,000,000 shares authorized; 6,000,000 Series A shares ($25 liquidation preference) issued at June 30, 2015 and December 31, 2014	144,486	144,486
Common stock, par value $0.01 per share; 210,000,000 shares authorized; 63,632,464 shares issued at June 30, 2015 and December 31, 2014	637	637
Additional paid-in capital	892,563	886,476
Retained earnings	1,783,222	1,710,324
Accumulated other comprehensive income, net of tax	82,297	141,814
Treasury stock, at cost; 452,138 shares at June 30, 2015 and 483,041 shares at December 31, 2014	(31,538)	(32,334)
Total shareholders’ equity	2,871,667	2,851,403
Total liabilities and shareholders’ equity	$ 27,781,593	$ 28,277,775