Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets
Cash and due from banks (noninterest-bearing)	$ 277,751	$ 315,973
Federal funds sold and securities purchased under reverse repurchase agreements	250	1,885
Securities available for sale (at fair value)	2,345,422	2,374,567
Securities held to maturity (fair value: $1,195,367-2015; $1,182,846-2014)	1,187,818	1,170,685
Loans held for sale (LHFS)	160,189	132,196
Loans held for investment (LHFI)	7,091,385	6,449,469
Less allowance for loan losses, LHFI	67,619	69,616
Net LHFI	7,023,766	6,379,853
Acquired Loans:
Noncovered loans	372,711	525,783
Covered loans	17,700	23,626
Less allowance for loan losses, acquired loans	11,992	12,059
Net acquired loans	378,419	537,350
Net LHFI and acquired loans	7,402,185	6,917,203
Premises and equipment, net	195,656	200,781
Mortgage servicing rights	74,007	64,358
Goodwill	366,156	365,500
Identifiable intangible assets	27,546	33,234
Other real estate, excluding covered other real estate	77,177	92,509
Covered other real estate	1,651	6,060
FDIC indemnification asset	738	6,997
Other assets	562,350	568,685
Total Assets	12,678,896	12,250,633
Deposits:
Noninterest-bearing	2,998,694	2,748,635
Interest-bearing	6,589,536	6,949,723
Total deposits	9,588,230	9,698,358
Federal funds purchased and securities sold under repurchase agreements	441,042	443,543
Short-term borrowings	412,617	425,077
Long-term FHLB advances	501,155	1,253
Subordinated notes	49,969	49,936
Junior subordinated debt securities	61,856	61,856
Other liabilities	150,970	150,670
Total Liabilities	11,205,839	10,830,693
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 67,559,128 shares - 2015; 67,481,992 shares - 2014	14,076	14,060
Capital surplus	361,467	356,244
Retained earnings	1,142,908	1,092,120
Accumulated other comprehensive loss, net of tax	(45,394)	(42,484)
Total Shareholders' Equity	1,473,057	1,419,940
Total Liabilities and Shareholders' Equity	$ 12,678,896	$ 12,250,633