Commitments and Contingencies (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) obligation	Dec. 31, 2023 USD ($)	[1]
Other Commitments [Line Items]
Number of outstanding credit obligations | obligation	23
Letters of credit outstanding	$ 51,922
Outstanding construction financings for leased properties	1,342,410	$ 1,304,441
Additional financing to complete construction	859,450
Seniors Housing Operating Properties, Affinity Brand
Other Commitments [Line Items]
Contingent consideration	34,926
VIE
Other Commitments [Line Items]
Total loans made	870,375
Expected additional funding for investments	$ 208,631

[1] The consolidated balance sheet at December 31, 2023 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.