Quarterly report pursuant to Section 13 or 15(d)

Repurchase Agreements (Details)

v3.8.0.1
Repurchase Agreements (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Disclosure of Repurchase Agreements [Abstract]    
Repurchase agreements $ 18,297,392 $ 9,316,351
Weighted average borrowing rate 1.76% 1.31%
Weighted average remaining maturity 154 days 77 days