Mortgages and Notes Payable (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2025 USD ($) extension	Sep. 30, 2024 USD ($)	Oct. 21, 2025 USD ($)	Dec. 31, 2024 USD ($)
Debt Instrument [Line Items]
Mortgages and notes payable	$ 3,404,707,000	$ 3,404,707,000			$ 3,293,559,000
Unamortized debt issuance costs	$ (13,822,000)	(13,822,000)			(14,442,000)
Loss on debt extinguishment		(144,000)	$ (173,000)
Maximum liquidity requirements	1 year
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity on credit facility	$ 750,000,000.0	$ 750,000,000.0
Number of additional extensions | extension		2
Term of optional extension		6 months
Temporary reduction in interest rate due to sustainability goals (in hundredths)		0.025%
Amount outstanding on revolving credit facility	220,000,000.0	$ 220,000,000.0
Outstanding letters of credit on revolving credit facility	100,000	100,000
Unused borrowing capacity on revolving credit facility	$ 529,900,000	529,900,000
Variable Rate Term Loan due 2029 [Member]
Debt Instrument [Line Items]
Term of optional extension	2 years
Temporary reduction in interest rate due to sustainability goals (in hundredths)	0.025%
Principal amount of debt	$ 200,000,000.0	200,000,000.0
Debt issuance costs	2,000,000.0	2,000,000.0
Loss on debt extinguishment	(100,000)
Secured indebtedness [Member]
Debt Instrument [Line Items]
Mortgages and notes payable	705,498,000	705,498,000			712,186,000
Aggregate undepreciated book value of secured real estate assets	1,246,600,000	1,246,600,000
Unsecured indebtedness [Member]
Debt Instrument [Line Items]
Mortgages and notes payable	$ 2,713,031,000	$ 2,713,031,000			$ 2,595,815,000
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Facility interest rate basis		SOFR
Interest rate, basis spread (in hundredths)		0.85%
Annual facility fee (in hundredths)		0.20%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Variable Rate Term Loan due 2029 [Member]
Debt Instrument [Line Items]
Interest rate, basis spread (in hundredths)	0.95%
Principal debt interest rate basis	SOFR
SOFR Related Spread Adjustment [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate, basis spread (in hundredths)		0.10%
Subsequent Event [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Amount outstanding on revolving credit facility				$ 211,000,000.0
Outstanding letters of credit on revolving credit facility				100,000
Unused borrowing capacity on revolving credit facility				$ 538,900,000