Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets:
Cash and due from banks	$ 559,311	$ 702,485
Interest-bearing deposits	3,177,902	3,630,846
Federal funds sold and resell agreements	17,692	30,792
Total cash and cash equivalents	3,754,905	4,364,123
Securities held to maturity, at amortized cost	2,677,485	2,926,486
Securities available for sale, at estimated fair value	8,972,688	8,461,254
Trading account securities	19,672	15,426
Loans, net of unearned discounts	11,358,950	10,987,535
Less: Allowance for loan losses	(110,373)	(99,542)
Net loans	11,248,577	10,887,993
Premises and equipment, net	540,388	442,170
Goodwill	654,668	654,668
Other intangible assets, net	9,566	12,125
Cash surrender value of life insurance policies	174,514	172,050
Accrued interest receivable and other assets	288,889	341,480
Total assets	28,341,352	28,277,775
Liabilities:
Non-interest-bearing demand deposits	10,468,605	10,149,061
Interest-bearing deposits	13,855,792	13,986,869
Total deposits	24,324,397	24,135,930
Federal funds purchased and repurchase agreements	632,179	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	242,688	250,208
Total liabilities	25,436,379	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 September 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 September 30, 2015 and December 31, 2014	637	637
Additional paid-in capital	895,035	886,476
Retained earnings	1,823,045	1,710,324
Accumulated other comprehensive income, net of tax	133,916	141,814
Treasury stock, at cost; 1,350,498 shares at September 30, 2015 and 483,041 shares at December 31, 2014	(92,146)	(32,334)
Total shareholders’ equity	2,904,973	2,851,403
Total liabilities and shareholders’ equity	$ 28,341,352	$ 28,277,775