Related-Party Transactions (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Related Party Transaction [Line Items]
Financial advisory and management services payments		$ 38	$ 38	$ 113	$ 113
Annual recurring fee payable monthly	$ 150
Related Party | Financial Advisory And Management Services | AWAC Aviation Inc
Related Party Transaction [Line Items]
Financial advisory and management services payments		$ 60	$ 60	$ 180	$ 180