Loans Receivable - Credit Loss Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 164,249	$ 166,785	$ 224,036
Provision for loan losses, net	8,797	(1,394)	7,270
Loan write-offs	0	0	(64,075)
Purchased deteriorated loan	19,077	0	0
Reserve for unrecognized interest added to principal	2,066	0	0
Foreign currency translation	274	(1,142)	(446)
Balance at end of period	194,463	164,249	166,785
Loan writeoff	$ 0	$ 0	64,075
Genesis Health Care Corporation
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loan write-offs			(64,075)
Loan writeoff			$ 64,075