Notes Receivable - General Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Apr. 30, 2008	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2017	Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Aggregate carrying values		$ 71,228,000	$ 71,923,000
Transition adjustment		(1,088,105,000)	(911,092,000)
Credit loss			32,784,000
Cumulative Effect, Period of Adoption, Adjustment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transition adjustment					$ (5,300,000)
Bonds A Series [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Bond issued, face value		$ 95,000,000
Interest rates on bonds (as a percent)		8.00%
Maturity date of notes receivable		Jul. 01, 2034
Effective interest rates on bonds (as a percent)	8.04%
Present value of future debt service payments discounted	$ 93,800,000
Bonds B Series [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Bond issued, face value		$ 50,000,000
Interest rates on bonds (as a percent)		10.00%
Maturity date of notes receivable		Sep. 01, 2037
Effective interest rates on bonds (as a percent)	11.42%
Present value of future debt service payments discounted	$ 38,300,000
Less portion recognized in other comprehensive income				$ 6,500,000
Bonds B Series [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transition adjustment					$ (5,200,000)
Bonds A and B Series [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Aggregate carrying values		$ 71,200,000	71,900,000
Credit loss reserve		$ 38,000,000.0	38,000,000.0
Credit loss			$ 38,000,000.0