Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 546,444	$ 604,182
Overnight investments	2,368,132	1,724,919
Investment securities available for sale	6,690,578	7,171,917
Investment securities held to maturity	301	518
Loans held for sale	71,874	63,696
Loans and Leases Receivable, Gross	19,855,806	18,769,465
Less allowance for loan and lease losses	(205,463)	(204,466)
Net loans and leases	19,650,343	18,564,999
Premises and equipment	1,123,828	1,125,081
Other real estate owned:
Other Real Estate, Covered	8,152	22,982
Other Real Estate, Non Covered	61,707	70,454
Income earned not collected	67,368	57,254
FDIC Indemnification Asset	9,276	28,701
Goodwill	139,773	139,773
Other intangible assets	95,535	106,610
Other assets	616,513	394,027
Total assets	31,449,824	30,075,113
Liabilities
Noninterest-bearing	9,171,529	8,086,784
Interest-bearing	17,547,846	17,591,793
Total deposits	26,719,375	25,678,577
Short-term borrowings	759,757	987,184
Long-term obligations	705,418	351,320
FDIC loss share payable	124,038	116,535
Other liabilities	278,708	253,903
Total liabilities	28,587,296	27,387,519
Shareholders' Equity
Surplus	658,918	658,918
Retained earnings	2,226,476	2,069,647
Accumulated other comprehensive loss	(34,876)	(52,981)
Total shareholders' equity	2,862,528	2,687,594
Total liabilities and shareholders' equity	31,449,824	30,075,113
Class A Common Stock
Shareholders' Equity
Common stock	11,005	11,005
Class B Common Stock
Shareholders' Equity
Common stock	$ 1,005	$ 1,005