Dispositions, Real Property Held for Sale and Impairment - Genesis Healthcare (Details) $ in Thousands		1 Months Ended
	May 01, 2023 USD ($)	Mar. 31, 2021 USD ($) property	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Right of use assets, net			$ 350,969		$ 323,942
Lease liabilities			$ 383,230		$ 415,824
Gain from leasehold interest	$ 65,485
Joint Venture With Aurora Health Network Peace Capital
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from acquisition of equity method investments	104,240
Equity method investments	$ 11,571
Genesis Health Care Operating Relationship
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | property		7
Gross sale price		$ 182,618
Right of use assets, net				$ 115,359
Lease liabilities				$ 66,530