Notes Payable and Unsecured Credit Facility - Schedule of Maturities of Long-term Debt (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
2024		$ 395,978
2025		465,631
2026		359,273
2027		756,170
2028		343,581
Beyond 5 Years		1,864,200
Unamortized debt premium/(discount) and issuance costs		(30,884)
Total		4,153,949	$ 3,726,754
Unsecured Debt [Member]
Debt Instrument [Line Items]
Total		3,252,755	$ 3,248,373
Scheduled Principal Payments [Member] | Mortgages [Member]
Debt Instrument [Line Items]
2024		12,398
2025		11,094
2026		11,426
2027		8,612
2028		7,011
Beyond 5 Years		8,070
Total		58,611
Mortgage Loan Maturities [Member] | Mortgages [Member]
Debt Instrument [Line Items]
2024		133,580
2025		52,537
2026		147,847
2027		222,558
2028		36,570
Beyond 5 Years		106,130
Unamortized debt premium/(discount) and issuance costs		(8,640)
Total		690,582
Unsecured Maturities [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
2024	[1]	250,000
2025	[1]	402,000
2026	[1]	200,000
2027	[1]	525,000
2028	[1]	300,000
Beyond 5 Years	[1]	1,750,000
Unamortized debt premium/(discount) and issuance costs	[1]	(22,244)
Total	[1]	$ 3,404,756

[1] Includes unsecured public and private debt and unsecured credit facilities