Loans and Financing Receivables - Allowance for Credit Loss (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Allowance for credit losses
Total outstanding principal	$ 31,338	$ 31,188
Allowance for credit losses	(168)	(168)	$ (92)	$ (92)
Loans and financing receivables, Net	$ 31,170	$ 31,020
Allowance as a % of Amortized Cost	0.54%	0.54%
Loans under FPI Loan Program
Allowance for credit losses
Total outstanding principal	$ 14,115	$ 13,970
Allowance for credit losses	(76)	(76)
Loans and financing receivables, Net	$ 14,039	$ 13,894
Allowance as a % of Amortized Cost	0.54%	0.54%
Financing Receivables
Allowance for credit losses
Total outstanding principal	$ 17,223	$ 17,218
Allowance for credit losses	(92)	(92)
Loans and financing receivables, Net	$ 17,131	$ 17,126
Allowance as a % of Amortized Cost	0.53%	0.53%