Revenue Recognition - Summary of Revenues Disaggregated by License Type (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation Of Revenue [Line Items]
Type of Revenue [Extensible List]	us-gaap:LicenseMember	us-gaap:LicenseMember	us-gaap:LicenseMember	us-gaap:LicenseMember
Total revenue	$ 24,462	$ 35,471	$ 74,688	$ 105,806
Direct To Retail License
Disaggregation Of Revenue [Line Items]
Total revenue	6,490	11,146	21,460	31,263
Wholesale License
Disaggregation Of Revenue [Line Items]
Total revenue	17,878	24,206	52,787	73,758
Other Licenses
Disaggregation Of Revenue [Line Items]
Total revenue	$ 94	$ 119	$ 441	$ 785