Note Payable - Schedule of Notes Payable (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total borrowings	$ 50,000	$ 50,000
Accrued exit fee net of unamortized issuance costs	687	(123)
Net carrying amount of debt	$ 50,687	$ 49,877
LIBOR [Member] | Collateralized note 2021-12
Debt Instrument [Line Items]
Collateralized debt instrument maturity date.	2027
Collateralized note , Effective interest rate	13.96%	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	14.09%	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	14.59%	15.37%
Collateralized note ,Amount	$ 25,000	$ 25,000