Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Condensed Consolidated Statements of Cash Flows (unaudited) [Abstract]
Net Income	$ 5,807	$ 3,504
Adjustments to Reconcile Net Income to Net Cash from Operating Activities
Proceeds from sales of loans held for sale	131,495	116,422
Disbursements for loans held for sale	(117,925)	(108,082)
Provision for loan losses	(691)	5,131
Deferred loan fees	133	(97)
Depreciation, amortization of intangible assets and premiums and accretion of discounts on securities and loans	(1,040)	(1,313)
Net gain on sale of property and equipment	(1)	0
Net gains on mortgage loans	(3,637)	(3,860)
Net gains on securities	(84)	(684)
Securities impairment recognized in earnings	0	177
Net losses on other real estate and repossessed assets	652	987
Vehicle service contract counterparty contingencies	127	471
Share based compensation	236	45
Increase (decrease) in accrued income and other assets	2,573	(934)
Increase in accrued expenses and other liabilities	823	1,576
Total Adjustments	12,661	9,839
Net Cash from Operating Activities	18,468	13,343
Cash Flow used in Investing Activities
Proceeds from the sale of securities available for sale	1,800	9,206
Proceeds from the maturity of securities available for sale	22,820	545
Principal payments received on securities available for sale	6,487	4,261
Purchases of securities available for sale	(103,259)	(150,607)
Purchases of interest bearing deposits	(6,986)	0
Net cash from branch sale	3,292	0
Net decrease in portfolio loans (loans originated, net of principal payments)	26,729	34,293
Proceeds from the collection of vehicle service contract counterparty receivables	169	210
Proceeds from the sale of other real estate and repossessed assets	3,511	5,298
Proceeds from the sale of property and equipment, net	3	0
Capital expenditures	(2,119)	(2,827)
Net Cash used in Investing Activities	(47,553)	(99,621)
Cash Flow from Financing Activities
Net increase in total deposits	71,256	98,187
Net increase in other borrowings	5	6
Proceeds from Federal Home Loan Bank advances	0	12,000
Payments of Federal Home Loan Bank advances	0	(12,354)
Net increase (decrease) in vehicle service contract counterparty payables	(1,282)	180
Proceeds from issuance of common stock	954	0
Net Cash from Financing Activities	70,933	98,019
Net Increase in Cash and Cash Equivalents	41,848	11,741
Cash and Cash Equivalents at Beginning of Period	179,782	341,108
Cash and Cash Equivalents at End of Period	221,630	352,849
Cash paid during the period for
Interest	1,810	3,034
Income taxes	6	131
Transfers to other real estate and repossessed assets	1,669	3,161
Transfer of payment plan receivables to vehicle service contract counterparty receivables	79	368
Purchase of securities available for sale not yet settled	$ 2,565	$ 10,817