Consolidated Statements of Operations and Comprehensive Income (Parenthetical) - Non Agency Residential Mortgage Backed Securities And Securitized Loans - Variable Interest Entity, Primary Beneficiary - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest income, Assets of consolidated VIEs	$ 195,488	$ 142,053	$ 488,353	$ 439,571
Interest expense, Non-recourse liabilities of VIEs	$ 70,715	$ 50,837	$ 168,738	$ 148,017