Leases - Schedule of Right of Use Asset and Related Lease Liability (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 09, 2020
Leases [Abstract]
Right-of-use asset	$ 6,492	$ 7,093	$ 8,800
Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List	Right-of-use asset	Right-of-use asset
Operating lease liability (current)	$ 767	$ 745
Operating Lease Liability Current Statement Of Financial Position Extensible List	Accounts payable, accrued and other liabilities	Accounts payable, accrued and other liabilities
Operating lease liability (non-current)	$ 5,911	$ 6,489
Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List	Operating lease liability (non-current)	Operating lease liability (non-current)
Operating Lease, Liability	$ 6,678	$ 7,234	$ 8,800