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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Debt - Mortgages and Other Notes Payable - Additional Information (Details) $ in Thousands	3 Months Ended					12 Months Ended
	Mar. 31, 2023 USD ($) Mortgage	Dec. 31, 2022 USD ($) Mortgage	Sep. 30, 2022 USD ($) Mortgage	Jun. 30, 2022 USD ($) Mortgage	Mar. 31, 2022 USD ($) Mortgage	Dec. 31, 2022 USD ($) Mortgage
Debt Instrument [Line Items]
Notes receivable, net	$ 123,967	$ 123,903				$ 123,903
Maximum borrowing capacity	$ 900,000
Repayments of debt		$ 10,300	$ 29,500	$ 22,700	$ 57,800
Initial term for mortgage loan			3 years
Disposed of by sale
Debt Instrument [Line Items]
Repayments of debt					$ 12,300
Mortgages
Debt Instrument [Line Items]
Number of mortgage loans \| Mortgage	2	3	1	2	4	10
Notes receivable, net				$ 42,400
Maximum borrowing capacity				42,200
Maturity date			Dec. 29, 2023
Mortgage Loan Principal Reduction Amount				8,600
Number of properties collateralized \| Mortgage	32	31				31
Mortgages \| Subscription Line
Debt Instrument [Line Items]
Notes receivable, net	$ 58,000				$ 99,000
Note receivable principal amount	200	$ 3,500			$ 1,100	$ 3,500
Mortgage Loan Interest Reserve		4,200				4,200
Mortgages \| Subscription Line 1
Debt Instrument [Line Items]
Notes receivable, net			$ 36,000
Mortgages \| Subscription Line 2
Debt Instrument [Line Items]
Notes receivable, net		83,400		$ 62,200		83,400
SOFR
Debt Instrument [Line Items]
Basis spread on variable rate			2.61%	2.56%
Fund IV
Debt Instrument [Line Items]
Maximum borrowing capacity	22,500
Repayments of debt		17,000
Long-term line of credit, noncurrent	39,200	0				0
Remaining borrowing capacity	39,200	0				0
Fund II
Debt Instrument [Line Items]
Maximum borrowing capacity	50,000
Loans Payable			$ 26,000
Single Mortgage Loan			198,000
Proceeds of mortgage loan			132,300
Fund II \| Mortgages
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 257,900
Maturity date			Jul. 10, 2027
Basis spread on variable rate			4.00%
Fund II \| Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 40,000
Fund II \| Secured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity			50,000
Core Portfolio
Debt Instrument [Line Items]
Notes receivable, net		13,500		$ 16,000		$ 13,500
Derivative, notional amount	806,000
Short-term Debt, Refinanced, Amount			25,400
Refinanced amount			$ 25,400
Core Portfolio \| Disposed of by sale
Debt Instrument [Line Items]
Scheduled principal payment	$ 2,000	$ 7,500