Quarterly report pursuant to Section 13 or 15(d)

Schedule of Available-for-sale Securities Reconciliation, Non-Agency Unamortized Net Discount and Designated Credit Reserves (Details)

v2.4.0.8
Schedule of Available-for-sale Securities Reconciliation, Non-Agency Unamortized Net Discount and Designated Credit Reserves (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Available-for-sale Securities, Designated Credit Reserve [Member]
    
Schedule of Available-for-sale Securities [Line Items]    
Available-for-sale Securities, Unamortized Discount, Beginning Balance $ (1,234,448) $ (1,290,946)
Available-for-sale Securities, Unamortized Discount, Acquisitions (16,678) (101,733)
Available-for-sale Securities, Unamortized Discount, Accretion 0 655
Available-for-sale Securities, Unamortized Discount, Credit Losses 3,867 10,901
Available-for-sale Securities, Unamortized Discount, Other-than-temporary Impairment Adjustment (212) (236)
Available-for-sale Securities, Unamortized Discount, Transfers 22,639 1,691
Available-for-sale Securities, Unamortized Discount, Sales, Calls and Other 28,034 2,975
Available-for-sale Securities, Unamortized Discount, Ending Balance (1,196,798) (1,376,693)
Available-for-sale Securities, Net, Unamortized [Member]
    
Schedule of Available-for-sale Securities [Line Items]    
Available-for-sale Securities, Unamortized Discount, Beginning Balance (1,071,559) (996,490)
Available-for-sale Securities, Unamortized Discount, Acquisitions (18,254) (41,450)
Available-for-sale Securities, Unamortized Discount, Accretion 31,831 34,636
Available-for-sale Securities, Unamortized Discount, Credit Losses 0 0
Available-for-sale Securities, Unamortized Discount, Other-than-temporary Impairment Adjustment 0 0
Available-for-sale Securities, Unamortized Discount, Transfers (22,639) (1,691)
Available-for-sale Securities, Unamortized Discount, Sales, Calls and Other 16,819 31,755
Available-for-sale Securities, Unamortized Discount, Ending Balance (1,063,802) (973,240)
Available-for-sale Securities, Unamortized Discount [Member]
    
Schedule of Available-for-sale Securities [Line Items]    
Available-for-sale Securities, Unamortized Discount, Beginning Balance (2,306,007) (2,287,436)
Available-for-sale Securities, Unamortized Discount, Acquisitions (34,932) (143,183)
Available-for-sale Securities, Unamortized Discount, Accretion 31,831 35,291
Available-for-sale Securities, Unamortized Discount, Credit Losses 3,867 10,901
Available-for-sale Securities, Unamortized Discount, Other-than-temporary Impairment Adjustment (212) (236)
Available-for-sale Securities, Unamortized Discount, Transfers 0 0
Available-for-sale Securities, Unamortized Discount, Sales, Calls and Other 44,853 34,730
Available-for-sale Securities, Unamortized Discount, Ending Balance $ (2,260,600) $ (2,349,933)