Schedule of Joint Venture Revenues and Net Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Equity Method Investments [Line Items]
Net income	$ 9,658	$ 3,899
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule Of Equity Method Investments [Line Items]
Revenues	17,428	11,507
Net income	14,856	5,197
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] | Oak Grove Asset Acquisitions LP [Member]
Schedule Of Equity Method Investments [Line Items]
Revenues	1,129	522
Net income	237	151
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] | CPFH LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Revenues	15,538	10,985
Net income	13,930	$ 5,046
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] | HGC Funding I LLC and Origination I LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Revenues	761
Net income	$ 689