Revenue and Related Matters - Summary of Allowance for Expected Credit Losses on Accounts Receivable (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($)
Receivables [Abstract]
Balance at December 31, 2021	$ 610
Provision for expected credit losses	514
Write-offs	(492)
Balance at September 30, 2022	$ 632