Recently Issued and Adopted Accounting Standards - Schedule of Allowance for Doubtful Accounts (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($)
Accounting Changes and Error Corrections [Abstract]
Balance as of December 31, 2019	$ 904
Current provision for credit losses	310
Write-offs against allowance	(563)
Recoveries	0
Balance as of June 30, 2020	$ 651