Related Party Transactions (Details) - Corvid Peak - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Feb. 15, 2019
Strategic Combination Agreement
Related Party Transaction [Line Items]
Investment in funds to be managed		$ 75
Commitment, Funded Amount	$ 25
Management fee based on percent of net profits		20.00%
Management fee based on net asset value of invested capital		1.25%
Management fee based on commitment, to the extent not invested		1.25%
Total Economic Interest to be Acquired, Percentage		51.00%
Total Economic Interest to be Acquired, Step Acquisition Percentage by Year, Percentage		10.20%
Strategic Combination Agreement | Minimum
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage	10.00%
Transition Service Agreement | Minimum
Related Party Transaction [Line Items]
Termination of services period	30 days
Transition Service Agreement | Maximum
Related Party Transaction [Line Items]
Termination of services period	150 days