Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 495,705	$ 534,086
Overnight investments	2,997,086	2,063,132
Investment securities available for sale	6,384,815	6,861,293
Investment securities held to maturity	125	255
Loans held for sale	95,910	59,766
Loans and Leases Receivable, Gross	21,296,980	20,239,990
Less allowance for loan and lease losses	(211,950)	(206,216)
Net loans and leases	21,085,030	20,033,774
Premises and equipment	1,134,562	1,135,829
Other Real Estate	68,964	65,559
Income earned not collected	74,933	70,036
FDIC Indemnification Asset	3,108	4,054
Goodwill	150,601	139,773
Other intangible assets	79,550	90,986
Other assets	401,521	417,391
Total assets	32,971,910	31,475,934
Liabilities
Noninterest-bearing	10,245,674	9,274,470
Interest-bearing	17,679,579	17,656,285
Total deposits	27,925,253	26,930,755
Short-term borrowings	730,214	594,733
Long-term obligations	840,266	704,155
FDIC loss share payable	95,779	126,453
Other liabilities	296,650	247,729
Total liabilities	29,888,162	28,603,825
Shareholders' Equity
Surplus	658,918	658,918
Retained earnings	2,427,604	2,265,621
Accumulated other comprehensive loss	(14,784)	(64,440)
Total shareholders' equity	3,083,748	2,872,109
Total liabilities and shareholders' equity	32,971,910	31,475,934
Class A Common Stock
Shareholders' Equity
Common stock	11,005	11,005
Class B Common Stock
Shareholders' Equity
Common stock	$ 1,005	$ 1,005