Revenue Recognition - Summary of Changes in Allowance for Credit Losses (Detail) $ in Thousands	3 Months Ended
	Dec. 31, 2023 USD ($)
Revenue from Contract with Customer [Abstract]
Balance at September 30, 2022	$ 8,375
Current period provision	649
Write-offs, net and other	(950)
Balance as of December 31, 2023	$ 8,074