Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale Securities, at Fair Value Other than Temporary Impairment, Credit Losses Recognized in Earnings (Details)

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Available-for-Sale Securities, at Fair Value Other than Temporary Impairment, Credit Losses Recognized in Earnings (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]        
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities $ 0 $ (1,426) $ (212) $ (1,662)
Other than Temporary Impairment Losses, Investments, Number, Available-for-sale Securities     3 4
Available-for-sale Securities, Weighted Average Cumulative Losses     9.60%  
Available-for-sale Securities, Weighted Average Three-Month Prepayment Speed     0.042  
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Portion Recognized in Earnings, Net, Qualitative Disclosures, Delinquency Rate     30.00%  
Available-for-sale Securities, Weighted Average FICO Score     664  
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Beginning Balance (9,215) (15,142) (9,467) (15,561)
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment 0 0 (91) 0
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses 0 (1,426) (121) (1,662)
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Cash Flows 0 231 464 231
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold 1,154 1,291 1,154 1,946
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance $ (8,061) $ (15,046) $ (8,061) $ (15,046)