Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2021	Jul. 09, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 61,674	$ 53,064	$ 69,564
Administrative fee income, affiliate	100	100	200
Realized gains on contract derivative, net	2,866	2,992	103
Platform fees, net
Disaggregation of Revenue [Line Items]
Revenue	56,783	50,757	66,853
Administrative fee income, affiliate		200	300
Other revenues
Disaggregation of Revenue [Line Items]
Revenue	$ 4,891	$ 2,307	$ 2,711