Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 367,092	$ 485,489
Interest bearing funds with Federal Reserve Bank	829,887	721,362
Interest earning deposits with banks	17,387	11,810
Federal funds sold and securities purchased under resale agreements	69,819	73,111
Trading account assets, at fair value	5,097	13,863
Mortgage loans held for sale, at fair value	59,275	63,328
Investment securities available for sale, at fair value	3,587,818	3,041,406
Loans, net of deferred fees and costs	22,429,565	21,097,699
Allowance for loan losses	(252,496)	(261,317)
Loans, net	22,177,069	20,836,382
Premises and equipment, net	445,155	455,235
Goodwill	24,431	24,431
Other real estate	47,030	85,472
Deferred tax asset, net	511,948	622,464
Other assets	650,645	615,884
Total assets	28,792,653	27,050,237
Liabilities
Non-interest bearing deposits	6,732,970	6,228,472
Interest bearing deposits, excluding brokered deposits	15,434,171	13,660,830
Brokered deposits	1,075,520	1,642,398
Total deposits	23,242,661	21,531,700
Federal funds purchased and securities sold under repurchase agreements	177,025	126,916
Long-term debt	2,186,893	2,139,325
Other liabilities	185,878	211,026
Total liabilities	25,792,457	24,008,967
Shareholders' Equity
Series C Preferred Stock – no par value. 5,200,000 shares outstanding at December 31, 2015 and December 31, 2014	125,980	125,980
Common stock - $1.00 par value. Authorized 342,857,143 shares at December 31, 2015 and December 31, 2014; issued 140,592,409 at December 31, 2015 and 139,950,422 at December 31, 2014; outstanding 129,547,032 at December 31, 2015 and 136,122,843 at December 31, 2014	140,592	139,950
Additional paid-in capital	2,989,981	2,960,825
Treasury stock, at cost – 11,045,377 shares at December 31, 2015 and 3,827,579 shares at December 31, 2014	(401,511)	(187,774)
Accumulated other comprehensive loss, net	(29,819)	(12,605)
Retained earnings	174,973	14,894
Total shareholders’ equity	3,000,196	3,041,270
Total liabilities and shareholders' equity	$ 28,792,653	$ 27,050,237