Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 10,649	$ 7,028
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,500	2,754
Provision for loan losses	1,060	2,723
Deferred income taxes	2,212	110
Gains on OREO sales	(2,582)	(2,317)
Share-based compensation expense	783	428
Loss on disposal of premises and equipment	5	1
Amortization of FDIC indemnification asset	7,171	3,233
Accretion on acquired loans	(23,370)	(9,110)
Net amortization of investment securities	1,246	572
OREO write downs	2,570	8,876
Net change in:
Loans held for sale	14,830	11,103
Accrued interest receivable	(2,480)	2,274
Prepaid assets	(949)	546
FDIC loss share receivable	14,660	28,088
Accrued interest payable	(585)	(566)
Accrued income taxes	5,379	(1,268)
Miscellaneous assets and liabilities	(11,726)	(8,398)
Net cash provided by operating activities	22,373	46,077
Cash flows from investing activities:
Proceeds from maturities and calls of investment securities held to maturity	843
Proceeds from maturities and calls of investment securities available for sale	56,888	16,066
Proceeds from sales of other investment securities	1,963
Purchases of investment securities available for sale	(37,283)	(50,357)
Net decrease in customer loans	54,021	51,321
Purchases of premises and equipment	(2,936)	(2,114)
Proceeds from sale of premises and equipment		10
Proceeds from sale of OREO	11,356	16,536
Net cash provided by investing activities	84,852	31,462
Cash flows from financing activities:
Net increase (decrease) in deposits	(79,004)	102,164
Net increase in federal funds purchased and securities sold under agreements to repurchase	90,080	54,976
Repayment of other borrowings	(311)	(286)
Common stock repurchased	(305)	(219)
Dividends paid on common stock	(3,062)	(2,389)
Stock options exercised	516	12
Net cash provided by financing activities	7,914	154,258
Net increase in cash and cash equivalents	115,139	231,797
Cash and cash equivalents at beginning of period	380,730	171,425
Cash and cash equivalents at end of period	495,869	403,222
Cash paid for:
Interest	2,811	3,749
Income taxes	564	4,799
Noncash investing activities:
Transfers of loans to foreclosed properties (covered of $6,186 and $14,491, respectively; and non-covered of $10,542 and $7,569, respectively)	$ 16,728	$ 22,060