CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - Non Agency Residential Mortgage Backed Securities And Securitized Loans - Variable Interest Entities, Primary Beneficiary - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest income, assets of consolidated VIEs	$ 780,746	$ 904,830	$ 914,022
Interest expense, Non-recourse liabilities of VIEs	$ 337,387	$ 395,255	$ 390,858