Significant Transactions (Details) $ / shares in Units, $ in Thousands				3 Months Ended
	Apr. 29, 2026 USD ($) $ / shares	Feb. 23, 2026 USD ($) $ / shares	Feb. 12, 2026 USD ($) $ / shares	Mar. 31, 2025 USD ($) apartment $ / shares shares	Mar. 31, 2026 USD ($) apartment properties	Dec. 31, 2025 USD ($)
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Apartment communities owned by VIEs | properties					2
Special Cash Distribution
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Dividends and distributions paid (in dollars per share) | $ / shares		$ 0.30	$ 0.69
Payment of distributions to Limited Partners		$ 45,800	$ 104,600
Special Cash Distribution | Subsequent Event
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Dividends and distributions paid (in dollars per share) | $ / shares	$ 0.20
Payment of distributions to Limited Partners	$ 29,900
Variable Rate Property Debt | Secured Debt
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Long-term debt, gross					$ 4,057,583	$ 4,056,459
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Wholly And Partially Owned Consolidated Properties | Variable Rate Property Debt | Secured Debt
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Long-term debt, gross				$ 129,300
Miami
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from real estate and real estate joint ventures				3,500
Miami | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Wholly And Partially Owned Consolidated Properties
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Apartment communities owned by VIEs | apartment					7
Boston, Massachusetts, Denver, Colorado, and San Diego, California
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from real estate and real estate joint ventures				155,800
Contribution to unconsolidated joint ventures				$ 91,200
Boston, Massachusetts, Denver, Colorado, and San Diego, California | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Wholly And Partially Owned Consolidated Properties
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Apartment communities owned by VIEs | apartment				3
Common OP Units redeemed in exchange for cash during period (in shares)) | shares				2,521,132
Dividends and distributions paid (in dollars per share) | $ / shares				$ 25.62