Revenue - Additional Information (Detail 1) $ in Millions	Sep. 30, 2020 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Deferred revenue expect to recognize amount	$ 4.4
Deferred revenue expect to recognize period	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Deferred revenue expect to recognize amount	$ 12.6
Deferred revenue expect to recognize period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Deferred revenue expect to recognize amount	$ 68.4
Deferred revenue expect to recognize period