Note Payable - Schedule of Notes Payable (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total Borrowings	$ 50,000	$ 50,000
Unamortized premium and debt issuance costs	66	(123)
Net carrying amount of debt	$ 50,066	$ 49,877
LIBOR [Member] | Collateralized note 2021-12
Debt Instrument [Line Items]
Collateralized debt instrument maturity date	2027
Collateralized note , Effective interest rate	14.71%	14.73%
Collateralized note ,Amount	$ 5,000	$ 5,000
SOFR [Member] | Collateralized note 2022-11
Debt Instrument [Line Items]
Collateralized debt instrument maturity date	2027
Collateralized note , Effective interest rate	14.85%	14.87%
Collateralized note ,Amount	$ 20,000	$ 20,000
SOFR [Member] | Collateralized note 2023-12
Debt Instrument [Line Items]
Collateralized debt instrument maturity date	2027
Collateralized note , Effective interest rate	15.36%	15.37%
Collateralized note ,Amount	$ 25,000	$ 25,000