Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net income	$ 13,008	$ 21,073
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation	1,077	1,360
Provision for loan losses	5,209	(2,464)
Deferred income taxes	3,257	1,267
Net amortization of debt securities	1,910	3,299
Amortization of intangible assets	651	930
Gain on sale of investment securities	0	(684)
Mortgage loans originated for sale	(31,543)	(34,645)
Proceeds from mortgage loans sold	28,184	39,474
Gain on sale of other real estate	(1,400)	(1,090)
Gain on state tax credits, net	(704)	(906)
Excess tax benefit of share-based compensation	101	0
Share-based compensation	1,524	1,788
Valuation adjustment on other real estate	590	754
Net accretion of loan discount and indemnification asset	(5,818)	(8,725)
Changes in:
Accrued interest receivable	294	(737)
Accrued interest payable	(95)	(238)
Prepaid FDIC insurance	0	2,607
Other assets	(8,250)	(11,002)
Other liabilities	(2,754)	(5,683)
Net cash provided by operating activities	5,039	6,378
Cash flows from investing activities:
Net increase in loans	(87,491)	65,771
Net cash proceeds received from FDIC loss share receivable	4,212	7,442
Proceeds from the sale of debt and equity securities, available for sale	0	122,894
Proceeds from the maturity of debt and equity securities, available for sale	22,519	50,468
Proceeds from the redemption of other investments	8,409	15,689
Proceeds from the sale of state tax credits held for sale	3,639	8,126
Proceeds from the sale of other real estate	8,754	9,925
Payments for the purchase/origination of:
Available for sale debt and equity securities	(29,853)	(23,700)
Other investments	(11,914)	(20,858)
Payments to Acquire Life Insurance Policies	0	20,000
State tax credits held for sale	0	1,365
Fixed assets	(828)	(834)
Net cash provided by investing activities	(82,553)	213,558
Cash flows from financing activities:
Net increase in noninterest-bearing deposit accounts	21,614	(68,527)
Net decrease in interest-bearing deposit accounts	(91,118)	(222,091)
Proceeds from Federal Home Loan Bank advances	278,600	459,000
Repayments of Federal Home Loan Bank advances	(175,000)	(348,000)
Repayments of Long-term Debt	(4,200)	(600)
Repayments of Subordinated Debt	0	2,000
Net decrease in other borrowings	(37,888)	(55,158)
Cash dividends paid on common stock	(2,086)	(1,904)
Excess tax benefit of share-based compensation	101	52
Repurchase of common stock warrants	0	(1,006)
Proceeds from the issuance of equity instruments	(649)	2,264
Net cash used in financing activities	(10,626)	(237,970)
Net decrease in cash and cash equivalents	(88,140)	(18,034)
Cash and cash equivalents, beginning of period	210,569	116,370
Cash and cash equivalents, end of period	122,429	98,336
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	7,320	10,002
Cash paid during the period for income taxes	8,498	16,936
Noncash transactions:
Transfer to other real estate owned in settlement of loans	6,158	10,908
Sales of other real estate financed	1,107	2,881
Stock Issued During Period, Value, Conversion of Convertible Securities	$ 5,002	$ 0