Debt - Covenant Summaries (Details)	6 Months Ended
	Jun. 30, 2023
Debt Instrument
Total liabilities to total asset value	60.00%
Total liabilities to total asset value, actual	47.50%
Unsecured indebtedness to unencumbered asset value	60.00%
Unsecured indebtedness to unencumbered asset value, actual	53.70%
Adjusted EBITDA to fixed charges	1.5
Adjusted EBITDA to fixed charges, actual	2.4
Secured indebtedness to total asset value	45.00%
Secured indebtedness to total asset value, actual	20.00%
Unencumbered NOI to unsecured interest expense	2.0
Unencumbered NOI to unsecured interest expense, actual	2.6
Debt to total assets	60.00%
Debt to total assets, actual	45.70%
Total unencumbered assets to unsecured debt	150.00%
Total unencumbered assets to unsecured debt, actual	218.40%
Consolidated income available for debt service to annual debt service charge	1.5
Consolidated income available for debt service to annual debt service charge, actual	2.5
Secured debt to total assets	45.00%
Secured debt to total assets, actual	19.10%
3.25% Registered senior notes | Unsecured debt
Debt Instrument
Interest rate (in percent)	3.25%
3.95% Registered senior notes | Unsecured debt
Debt Instrument
Interest rate (in percent)	3.95%
4.65% Registered senior notes | Unsecured debt
Debt Instrument
Interest rate (in percent)	4.65%
5.95% Registered senior notes | Unsecured debt
Debt Instrument
Interest rate (in percent)	5.95%