Investment in Convertible Notes (Details) - USD ($)			12 Months Ended
	Oct. 11, 2019	Jul. 19, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 09, 2021	Jul. 30, 2020
Debt Securities, Available-for-sale [Line Items]
Monthly installment receivable	$ 1,000,000
Unrealized gain (loss) on investments in convertible notes			$ (93,000)	$ 93,000	$ 0
Convertible Promissory Notes
Debt Securities, Available-for-sale [Line Items]
Investment purchase (up to)	$ 25,000,000	$ 30,000,000	$ 32,100,000			$ 25,000,000	$ 25,000,000
Investment interest rate (as a percent)		3.00%
Investment maturity (in months)		6 months
Convertible Promissory Notes | Subordinated Debt
Debt Securities, Available-for-sale [Line Items]
Investment purchase (up to)		$ 5,000,000				$ 5,000,000	$ 5,000,000