Credit Losses - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Credit Loss [Abstract]
Accounts receivable	$ 55,830	$ 43,068
Accounts receivable, reserve for doubtful accounts	$ 621	$ 525

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant