Mortgages and Notes Payable (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) extension	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jan. 31, 2025 USD ($)	Dec. 31, 2019
Debt Instrument [Line Items]
Mortgages and notes payable, net	$ 3,293,559,000	$ 3,213,206,000
Less-unamortized debt issuance costs	(14,442,000)	(17,739,000)
Scheduled future principal payments [Abstract]
2025	7,156,000
2026	206,922,000
2027	458,976,000
2028	803,168,000
2029	517,267,000
Thereafter	1,314,512,000
Less-unamortized debt issuance costs	(14,442,000)	(17,739,000)
Mortgages and notes payable, net	3,293,559,000	3,213,206,000
Gains/(losses) on debt extinguishment	$ (173,000)	(602,000)	$ 0
Lender covenant compliance to accelerate outstanding borrowings	51.00%
Cross-default minimum threshold	$ 35,000,000.0
Holders covenant compliance of bonds	25.00%
Uncured covenant compliance default period	60 days
Maximum liquidity requirements	1 year
Capitalized Interest [Abstract]
Capitalized Interest	$ 8,500,000	9,000,000.0	4,000,000.0
Variable Interest Entity, Primary Beneficiary [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	44,325,000	$ 44,192,000
Percentage of equity interest in consolidated affiliates					80.00%
Effective interest rate (in hundredths)		7.29%
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	44,325,000	$ 44,192,000
Debt issuance costs		800,000
Principal amount of debt		$ 45,000,000.0
Term of debt instrument (in years)		5 years
Floating to Fixed Interest Rate Swaps (2017) [Member]
Scheduled future principal payments [Abstract]
Amount of borrowings outstanding, subject to swaps	$ 50,000,000.0
Underlying treasury rate term (in years)	1 month
Weighted average interest rate under derivative instruments (in hundredths)	1.693%
2023 Forward Starting Swaps [Member]
Scheduled future principal payments [Abstract]
Amount of borrowings outstanding, subject to swaps		$ 200,000,000.0
Underlying treasury rate term (in years)		10 years
Weighted average interest rate under derivative instruments (in hundredths)		4.498%
Gain on forward starting interest rate swaps		$ (500,000)
5.69% Mortgage Loan due 2028 [Member]
Debt Instrument [Line Items]
Effective interest rate (in hundredths)		5.69%
Scheduled future principal payments [Abstract]
Debt issuance costs		$ 1,300,000
Principal amount of debt		$ 200,000,000.0
Term of debt instrument (in years)		5 years
7.650% (7.836% effective rate) Notes due 2034 [Member]
Debt Instrument [Line Items]
Effective interest rate (in hundredths)		7.836%
Scheduled future principal payments [Abstract]
Debt issuance costs		$ 3,200,000
Gains/(losses) on debt extinguishment		(600,000)
Principal amount of debt		$ 350,000,000.0
Stated interest rate (in hundredths)		7.65%
Original issuance discount		$ 4,600,000
Variable Rate Term Loan due 2026 [Member]
Scheduled future principal payments [Abstract]
Principal amount of debt			200,000,000.0
Variable Rate Term Loan due 2027 [Member]
Scheduled future principal payments [Abstract]
Debt issuance costs			$ 2,700,000
Temporary reduction in interest rate due to sustainability goals (in hundredths)			0.025%
Principal amount of debt			$ 150,000,000.0
Variable Rate Term Loan due 2027 [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Scheduled future principal payments [Abstract]
Interest rate			SOFR
Interest rate, basis spread (in hundredths)			0.95%
Variable Rate Term Loan due 2027 [Member] | SOFR Related Spread Adjustment [Member]
Scheduled future principal payments [Abstract]
Interest rate, basis spread (in hundredths)			0.10%
Variable Rate Term Loan due 2024 [Member]
Scheduled future principal payments [Abstract]
Temporary reduction in interest rate due to sustainability goals (in hundredths)			0.01%
Principal amount of debt			$ 200,000,000.0
Term of debt instrument (in years)			2 years
Variable Rate Term Loan due 2024 [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Scheduled future principal payments [Abstract]
Interest rate			SOFR
Interest rate, basis spread (in hundredths)			0.95%
Variable Rate Term Loan due 2024 [Member] | SOFR Related Spread Adjustment [Member]
Scheduled future principal payments [Abstract]
Interest rate, basis spread (in hundredths)			0.10%
Revolving Credit Facility [Member]
Scheduled future principal payments [Abstract]
Maximum borrowing capacity on revolving credit facility	$ 750,000,000.0
Number of additional maturity extensions | extension	2
Term of optional extension	6 months
Annual facility fee (in hundredths)	0.20%
Debt issuance costs	$ 7,700,000
Gains/(losses) on debt extinguishment	$ 200,000
Temporary reduction in interest rate due to sustainability goals (in hundredths)	0.025%
Amount outstanding on revolving credit facility	$ 104,000,000.0
Outstanding letters of credit on revolving credit facility	100,000
Unused borrowing capacity on revolving credit facility	$ 645,900,000
Revolving Credit Facility [Member] | Subsequent Event [Member]
Scheduled future principal payments [Abstract]
Amount outstanding on revolving credit facility				$ 119,000,000.0
Outstanding letters of credit on revolving credit facility				100,000
Unused borrowing capacity on revolving credit facility				$ 630,900,000
Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Scheduled future principal payments [Abstract]
Interest rate	SOFR
Interest rate, basis spread (in hundredths)	0.85%
Revolving Credit Facility [Member] | SOFR Related Spread Adjustment [Member]
Scheduled future principal payments [Abstract]
Interest rate, basis spread (in hundredths)	0.10%
3.625% (3.752% effective rate) Notes due 2023 [Member]
Scheduled future principal payments [Abstract]
Principal amount of debt			$ 250,000,000
Stated interest rate (in hundredths)			3.625%
Carrying Amount of Notes, Total
Scheduled future principal payments [Abstract]
Principal amount of debt	$ 2,141,800,000
Secured indebtedness [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	712,186,000	720,752,000
Aggregate undepreciated book value of secured real estate assets	1,245,000,000
Annual repayments through principal amortization	7,100,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	712,186,000	720,752,000
Secured indebtedness [Member] | 5.69% Mortgage Loan due 2028 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	200,000,000	200,000,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	200,000,000	200,000,000
Secured indebtedness [Member] | 7.29% Mortgage Loan due 2028 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	44,965,000	45,000,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	44,965,000	45,000,000
Secured indebtedness [Member] | 4.27% (3.61% effective rate) mortgage loan due 2028 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	107,584,000	110,391,000
Unamortized premium	2,100,000	2,700,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	107,584,000	110,391,000
Secured indebtedness [Member] | 4.0% Mortgage Loan Due 2029 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	84,712,000	87,003,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	84,712,000	87,003,000
Secured indebtedness [Member] | 3.61% (3.19% effective rate) mortgage loan due 2029 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	84,054,000	84,360,000
Unamortized premium	1,400,000	1,700,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	84,054,000	84,360,000
Secured indebtedness [Member] | 3.40% (3.50% effective rate) mortgage loan due 2033 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	69,575,000	69,524,000
Unamortized discount	(400,000)	(500,000)
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	69,575,000	69,524,000
Secured indebtedness [Member] | 4.60% (3.73% effective rate) mortgage loan due 2037 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	121,296,000	124,474,000
Unamortized premium	8,000,000.0	8,600,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	121,296,000	124,474,000
Unsecured indebtedness [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	2,595,815,000	2,510,193,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	2,595,815,000	2,510,193,000
Unsecured indebtedness [Member] | 3.875% (4.038% effective rate) Notes due 2027 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	299,134,000	298,734,000
Unamortized discount	(900,000)	(1,300,000)
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	299,134,000	298,734,000
Unsecured indebtedness [Member] | 4.125% (4.271% effective rate) Notes due 2028 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	348,690,000	348,276,000
Unamortized discount	(1,300,000)	(1,700,000)
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	348,690,000	348,276,000
Unsecured indebtedness [Member] | 4.20% (4.234% effective rate) Notes due 2029 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	349,583,000	349,484,000
Unamortized discount	(400,000)	(500,000)
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	349,583,000	349,484,000
Unsecured indebtedness [Member] | 3.050% (3.079% effective rate) Notes due 2030 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	399,498,000	399,400,000
Unamortized discount	(500,000)	(600,000)
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	399,498,000	399,400,000
Unsecured indebtedness [Member] | 2.600% (2.645% effective rate) Notes due 2031 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	399,048,000	398,892,000
Unamortized discount	(1,000,000.0)	(1,100,000)
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	399,048,000	398,892,000
Unsecured indebtedness [Member] | 7.650% (7.836% effective rate) Notes due 2034 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	345,862,000	345,407,000
Unamortized discount	(4,100,000)	(4,600,000)
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	345,862,000	345,407,000
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2026 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	$ 200,000,000	200,000,000
Effective interest rate (in hundredths)	5.35%
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	$ 200,000,000	200,000,000
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2027 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	$ 150,000,000	150,000,000
Effective interest rate (in hundredths)	5.35%
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	$ 150,000,000	150,000,000
Unsecured indebtedness [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	$ 104,000,000	20,000,000
Effective interest rate (in hundredths)	5.25%
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	$ 104,000,000	$ 20,000,000