Consolidation - Revenue and Expenses of Consolidated Investment Product (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Expenses:
Other operating expenses	$ 18,885	$ 18,723
Noncontrolling interests	(5,291)	(722)
Net Income (Loss) Attributable to Common Stockholders	(4,285)	$ 19,662
CLOs
Income:
Realized and unrealized gain (loss), net	1,391
Interest income	28,748
Total revenues	30,139
Expenses:
Other operating expenses	6,631
Interest expense	24,486
Total expense	31,117
Noncontrolling interests	(255)
Net Income (Loss) Attributable to Common Stockholders	$ (1,233)