Real Property Acquisitions and Development - Narrative (Details)			1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 01, 2024 USD ($) properties	Apr. 01, 2022 USD ($) property	Dec. 31, 2022 USD ($) property	Dec. 31, 2024 USD ($) property	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($) property	Dec. 31, 2023 USD ($) joint_venture property	Dec. 31, 2022 USD ($) property	Feb. 29, 2024 property
Business Acquisition [Line Items]
Weighted average amortization period in years						5 years 1 month 6 days	6 years 8 months 12 days
Goodwill acquired						$ 87,192,000
Number of real estate properties | property				2,119		2,119
Secured debt				$ 2,338,155,000		$ 2,338,155,000	$ 2,183,327,000
Gain (loss) on real estate dispositions and acquisitions of controlling interests, net						451,611,000	67,898,000	$ 16,043,000
Purchase of interests						$ 562,483,000	67,124,000	299,730,000
Minimum | In place lease intangibles
Business Acquisition [Line Items]
Weighted average amortization period in years						1 year
Maximum | In place lease intangibles
Business Acquisition [Line Items]
Weighted average amortization period in years						2 years
Other Income
Business Acquisition [Line Items]
Gain (loss) from derecognition of the ROU asset and lease liability								$ 58,621,000
ProMedica
Business Acquisition [Line Items]
Decrease in interest			$ 273,504,000
Assisted Living And Memory Care | ProMedica
Business Acquisition [Line Items]
Number of real estate properties | property			58					58
Joint Ventures, Canadian Pension Plan Investment Board
Business Acquisition [Line Items]
Payments to acquire interest in subsidiaries and affiliates							$ 69,606,000
Ownership interest							45.00%
Number of joint ventures | joint_venture							2
Purchase of interests							$ 118,256,000
Joint Ventures, Canadian Pension Plan Investment Board | Office Building
Business Acquisition [Line Items]
Number of real estate properties | property							10
ProMedica Joint Ventures | ProMedica
Business Acquisition [Line Items]
Ownership interest			15.00%					15.00%
ProMedica Joint Ventures | Skilled Nursing Facilities
Business Acquisition [Line Items]
Number of properties sold | property			147
Equity Method Joint Venture
Business Acquisition [Line Items]
Ownership percentage				25.00%		25.00%
Number of real estate properties | property				39		39
Payments to acquire equity method investments						$ 205,029,000
Secured debt				$ 532,575,000		532,575,000
Gain (loss) on real estate dispositions and acquisitions of controlling interests, net						$ 182,642,000
Affinity Brand Acquisition
Business Acquisition [Line Items]
Number of assets acquired | property				22		22			25
Asset acquisition, consideration transferred						$ 807,954,000
Equity interest issued and issuable						203,328
Transactions						427,725,000
Holiday Retirement
Business Acquisition [Line Items]
Number of properties | property		17
Release of cash in contract termination		$ 6,883,000
Seniors Housing Operating
Business Acquisition [Line Items]
Goodwill acquired						87,192,000
Care UK Acquisition
Business Acquisition [Line Items]
Number of assets acquired | properties	136
Total consideration	$ 842,567,000
Revenue				$ 188,308,000
Acquisition related costs						$ 17,684,000
Care UK Acquisition | In place lease intangibles
Business Acquisition [Line Items]
Weighted average amortization period in years						1 year 9 months 18 days
Care UK Acquisition | Forecast
Business Acquisition [Line Items]
Total consideration					$ 21,251,000