Mortgages Payable - Summary of Mortgages Payable (Details) - Mortgages payable $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($) property mortgage	Dec. 31, 2022 USD ($) property
Debt
Number of properties | property	136	136
Weighted Average Stated Interest Rate (as a percent)	4.80%	4.80%
Weighted Average Effective Interest Rate (as a percent)	3.40%	3.30%
Weighted Average Remaining Years Until Maturity	1 year 1 month 6 days	1 year 4 months 24 days
Remaining Principal Balance	$ 842,100	$ 842,300
Unamortized Premium and Deferred Financing Costs Balance, net	8,500	11,600
Mortgage Payable Balance	$ 850,600	$ 853,900
Number of mortgages | mortgage	18
Number of Sterling-denominated mortgages paid quarterly | mortgage	1
Minimum
Debt
Weighted Average Effective Interest Rate (as a percent)	2.50%	2.70%
Stated interest rate (as a percent)	3.00%
Maximum
Debt
Weighted Average Effective Interest Rate (as a percent)	6.60%	6.60%
Stated interest rate (as a percent)	6.90%