Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets
Cash and due from banks (noninterest-bearing)	$ 284,735	$ 202,625
Federal funds sold and securities purchased under reverse repurchase agreements	6,725	9,258
Securities available for sale (at fair value)	2,592,807	2,468,993
Securities held to maturity (fair value: $52,669-2012; $62,515-2011)	47,867	57,705
Loans held for sale (LHFS)	286,221	216,553
Loans held for investment (LHFI)	5,650,548	5,857,484
Less allowance for loan losses, LHFI	84,809	89,518
Net LHFI	5,565,739	5,767,966
Acquired loans:
Noncovered loans	94,013	0
Covered loans	66,015	76,804
Less allowance for loan losses, acquired loans	1,526	502
Net acquired loans	158,502	76,302
Net LHFI and acquired loans	5,724,241	5,844,268
Premises and equipment, net	156,089	142,582
Mortgage servicing rights	43,580	43,274
Goodwill	291,104	291,104
Identifiable intangible assets	19,356	14,076
Other real estate, excluding covered other real estate	73,673	79,053
Covered other real estate	6,482	6,331
FDIC indemnification asset	25,309	28,348
Other assets	332,657	322,837
Total Assets	9,890,846	9,727,007
Deposits:
Noninterest-bearing	2,063,261	2,033,442
Interest-bearing	5,932,596	5,532,921
Total deposits	7,995,857	7,566,363
Federal funds purchased and securities sold under repurchase agreements	297,669	604,500
Short-term borrowings	78,594	87,628
Subordinated notes	49,855	49,839
Junior subordinated debt securities	61,856	61,856
Other liabilities	148,520	141,784
Total Liabilities	8,632,351	8,511,970
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 64,775,694 shares - 2012; 64,142,498 shares - 2011	13,496	13,364
Capital surplus	283,023	266,026
Retained earnings	958,322	932,526
Accumulated other comprehensive income, net of tax	3,654	3,121
Total Shareholders' Equity	1,258,495	1,215,037
Total Liabilities and Shareholders' Equity	$ 9,890,846	$ 9,727,007