XML 77 R66.htm IDEA: XBRL DOCUMENT v3.21.1
Derivative Instruments and Hedging Activities - Components of Investment Fair Value Changes (Details) - Trading
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Unrealized Gains (Losses) $ 28,967
Interest Rate Swap  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Realized Gains (Losses) (73,078)
Unrealized Gains (Losses) $ 28,967