Debt Obligations - Credit Facility (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Debt Instrument [Line Items]
Facility amount drawn	$ 0		$ 0
Deferred costs	4,049,000		4,266,000
Secured Debt | VNB Credit Facility | Valley National Bank | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	60,000,000
Debt used for operating expenses	$ 25,000,000
Effective interest rate	7.82%
Unused borrowing capacity fee, percentage	0.25%
Facility amount drawn	$ 0		0
Remaining borrowing capacity	60,000,000		60,000,000
Interest expense	92,000	$ 300,000
Amortization of deferred financing cost and unused fees	92,000	$ 83,000
Deferred costs	$ 236,000		$ 289,000
Secured Debt | VNB Credit Facility | Valley National Bank | Line of Credit | Minimum
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	6.00%
Secured Debt | VNB Credit Facility | Valley National Bank | Line of Credit | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	2.50%