Finance Receivables, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total before allowance for credit losses	$ 221,316	$ 189,941
Allowance for credit losses	(8,357)	(8,388)
Total carrying value	212,959	181,553
Life Science Term Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total before allowance for credit losses	180,537	136,312
Total carrying value	180,537	136,312
Life Science Royalty Purchases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total before allowance for credit losses	40,779	53,629
Total carrying value	$ 32,422	$ 45,241