Loans Receivable - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest receivable	$ 32,027	$ 31,798
Real estate loans receivable, net of credit allowance	1,426,094	$ 1,361,587	[1]
Genesis Health Care Corporation | Secured and Unsecured Debt
Financing Receivable, Troubled Debt Restructuring [Line Items]
Real estate loans receivable, net of credit allowance	$ 197,010

[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.