Supplemental Balance Sheet Information - Schedule of Other Long-term Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Other Liabilities Disclosure [Abstract]
Deferred consideration	$ 3,361	$ 4,260
Contingent consideration	832	829
Unrecognized tax benefits	1,741	1,841
Operating lease liabilities	3,584	3,843
Other long-term liabilities	$ 9,518	$ 10,773