Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale Securities, at Fair Value Schedule of Realized Gain (Loss) (Details)

v3.2.0.727
Available-for-Sale Securities, at Fair Value Schedule of Realized Gain (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]        
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds $ 1,671,909 $ 459,388 $ 2,572,016 $ 1,274,260
Available-for-sale Securities, Gross Realized Gains (Losses), Amortized Cost Sold 1,596,046 423,433 2,378,685 1,277,094
Available-for-sale Securities, Gross Realized Gains 76,199 35,954 193,887 43,163
Available-for-sale Securities, Gross Realized Losses (336) 0 (556) (45,997)
Available-for-sale Securities, Gross Realized Gain (Loss) $ 75,863 $ 35,954 $ 193,331 $ (2,834)