Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and due from banks (noninterest-bearing)	$ 383,945	$ 277,751
Federal funds sold and securities purchased under reverse repurchase agreements	500	250
Securities available for sale (at fair value)	2,410,947	2,345,422
Securities held to maturity (fair value: $1,173,101-2016; $1,195,367-2015)	1,143,234	1,187,818
Loans held for sale (LHFS)	242,097	160,189
Loans held for investment (LHFI)	7,499,204	7,091,385
Less allowance for loan losses, LHFI	70,871	67,619
Net LHFI	7,428,333	7,023,766
Acquired loans:
Noncovered loans	291,825	372,711
Covered loans	3,912	17,700
Less allowance for loan losses, acquired loans	11,380	11,992
Net acquired loans	284,357	378,419
Net LHFI and acquired loans	7,712,690	7,402,185
Premises and equipment, net	190,930	195,656
Mortgage servicing rights	65,514	74,007
Goodwill	366,156	366,156
Identifiable intangible assets	22,366	27,546
Other real estate, excluding covered other real estate	64,993	77,177
Covered other real estate	0	1,651
FDIC indemnification asset	0	738
Other assets	558,166	562,350
Total Assets	13,161,538	12,678,896
Deposits:
Noninterest-bearing	3,111,603	2,998,694
Interest-bearing	6,574,098	6,589,536
Total deposits	9,685,701	9,588,230
Federal funds purchased and securities sold under repurchase agreements	514,918	441,042
Short-term borrowings	412,792	412,617
Long-term FHLB advances	751,075	501,155
Subordinated notes	49,993	49,969
Junior subordinated debt securities	61,856	61,856
Other liabilities	150,442	150,970
Total Liabilities	11,626,777	11,205,839
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 67,626,939 shares - 2016; 67,559,128 shares - 2015	14,090	14,076
Capital surplus	365,553	361,467
Retained earnings	1,172,193	1,142,908
Accumulated other comprehensive loss, net of tax	(17,075)	(45,394)
Total Shareholders' Equity	1,534,761	1,473,057
Total Liabilities and Shareholders' Equity	$ 13,161,538	$ 12,678,896