Loans Receivable - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Interest receivable		$ 36,024	$ 32,205
Real estate loans receivable, net of credit allowance		1,773,788	$ 1,805,044	[1]
Mortgage loans | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Real estate loans receivable, net of credit allowance	$ 456,199
Interest rate (as percent)	10.00%
Unsecured Notes Receivable | Genesis Healthcare
Financing Receivable, Allowance for Credit Loss [Line Items]
Proceeds from sale of notes receivable	$ 24,246
Secured Notes Receivable | Genesis Healthcare
Financing Receivable, Allowance for Credit Loss [Line Items]
Proceeds from sale of notes receivable	$ 55,504
Notes Receivable | Genesis Healthcare
Financing Receivable, Allowance for Credit Loss [Line Items]
Real estate loans receivable, net of credit allowance		$ 108,047

[1] The consolidated balance sheet at December 31, 2024 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.