Quarterly report pursuant to Section 13 or 15(d)

Schedule of Repurchase Agreement Counterparties with Whom Repurchase Agreements Exceed 10 Percent of Stockholders' Equity (Details)

v3.19.3
Schedule of Repurchase Agreement Counterparties with Whom Repurchase Agreements Exceed 10 Percent of Stockholders' Equity (Details)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2019
USD ($)
counterparty
Sep. 30, 2018
Dec. 31, 2018
USD ($)
counterparty
Repurchase Agreement Counterparty [Line Items]      
Repurchase agreements $ 25,567,136   $ 23,133,476
Net Counterparty Exposure $ 1,608,401   $ 2,022,074
Weighted Average Days to Maturity 81 days   66 days
Repurchase Agreement Counterparty, Barclays Capital [Member]      
Repurchase Agreement Counterparty [Line Items]      
Repurchase agreements $ 3,710,843   $ 2,508,277
Net Counterparty Exposure $ 269,905   $ 280,148
Percent of Equity 5.00%   7.00%
Weighted Average Days to Maturity 63 days 50 days  
Repurchase Agreement Counterparty, Royal Bank of Canada [Member]      
Repurchase Agreement Counterparty [Line Items]      
Repurchase agreements $ 2,665,484   $ 2,504,438
Net Counterparty Exposure $ 226,480   $ 342,739
Percent of Equity 5.00%   8.00%
Weighted Average Days to Maturity 123 days   94 days
Repurchase Agreement Counterparty, All Other Counterparties [Member]      
Repurchase Agreement Counterparty [Line Items]      
Repurchase agreements $ 19,190,809   $ 18,120,761
Net Counterparty Exposure $ 1,112,016   $ 1,399,187
Percent of Equity 22.00%   33.00%
Weighted Average Days to Maturity 78 days   64 days
Number of repurchase agreement counterparties with whom amount at risk is less than 10 percent of stockholders' equity | counterparty 23   28