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Investment Activity (Assets Held for Sale and Long-Lived Assets Narrative) (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2024 USD ($)	Jun. 30, 2024 USD ($) property	Jun. 30, 2023 USD ($) property	Jun. 30, 2024 USD ($) property	Jun. 30, 2023 USD ($) property
Real Estate [Line Items]
Rental income		$ 65,760	$ 60,952	$ 127,947	$ 126,250
Asset Held For Sale In 2023
Real Estate [Line Items]
Rental income					1,000
Real Estate Investments
Real Estate [Line Items]
Impairment of real estate		$ 700	$ 100	$ 700	$ 500
Number of real estate properties, impaired, sold or classified as held for sale | property		1	2	1	3
Disposal Group, Held-for-sale, Not Discontinued Operations
Real Estate [Line Items]
Rental income		$ 500	$ 400	$ 900
Disposal Group, Held-for-sale, Not Discontinued Operations | Senior Living Campuses | 2024 Disposal Group
Real Estate [Line Items]
Purchase price		38,500		38,500
Lease income, annual rent	$ 2,800
Net real estate balance		$ 19,400		$ 19,400

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