Acquisitions, Dispositions, and Other Significant Leasing Transactions - International JV / Welltower Portfolio Acquisition (Details) $ in Millions		1 Months Ended
Dec. 17, 2024 USD ($) community	Sep. 30, 2024 USD ($) community
Business Acquisition [Line Items]
Number of communities acquired \| community	11
Welltower Inc. and JV
Business Acquisition [Line Items]
Number of communities acquired \| community		11
Purchase price		$ 300.0
Annualized cash rent payments		$ 22.3
Welltower Inc. and JV \| 4.92% Fixed Rate Agency Debt
Business Acquisition [Line Items]
Debt assumed	$ 194.5
Interest rate (as percent)	4.92%

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