Commitments and Contingencies - Additional Information (Detail) $ in Millions	9 Months Ended
Sep. 30, 2020 USD ($)
Commitments And Contingencies Disclosure [Line Items]
Purchase obligation, 2020	$ 22.6
Purchase obligation, 2021	15.0
Purchase Obligations Satisfied	$ 9.1

Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.

Name:	us-gaap_PurchaseObligationDueInNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant