Quarterly report pursuant to Section 13 or 15(d)

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

v3.3.0.814
Available-for-Sale Securities, at Fair Value Schedule of Realized Gain (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Schedule of Available-for-sale Securities [Line Items]        
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds $ 1,094,959 $ 1,902,311 $ 3,666,974 $ 3,176,570
Available-for-sale Securities, Gross Realized Gains (Losses), Amortized Cost Sold 1,028,486 1,839,591 3,407,171 3,116,684
Available-for-sale Securities, Gross Realized Gains 75,427 87,842 269,314 131,005
Available-for-sale Securities, Gross Realized Losses (8,955) (25,122) (9,511) (71,119)
Available-for-sale Securities, Gross Realized Gain (Loss) $ 66,472 $ 62,720 $ 259,803 $ 59,886