Consolidation - Revenue and Expenses of Consolidated Investment Product (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Expenses:
Other operating expenses	$ 16,343	$ 18,228	$ 52,664	$ 56,125
Noncontrolling interests	(11,286)	(1,274)	(21,507)	(2,969)
Net Income (Loss) Attributable to Common Stockholders	$ 29,648	$ 22,000	36,642	$ 66,504
CLOs
Income:
Realized and unrealized gain (loss), net			(9,648)
Interest income			81,846
Total revenues			72,198
Expenses:
Other operating expenses			9,535
Interest expense			70,258
Total expense			79,793
Noncontrolling interests			146
Net Income (Loss) Attributable to Common Stockholders			$ (7,449)