Revenue Recognition - Summary of Revenues Disaggregated by License Type (Parenthetical) (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation Of Revenue [Line Items]
Total revenue		$ 34,394	$ 50,212	$ 70,336	$ 98,761
Other Licenses
Disaggregation Of Revenue [Line Items]
Total revenue	[1]	284	700	668	2,897
Other Licenses | Umbro Business
Disaggregation Of Revenue [Line Items]
Total revenue		$ 200	$ 600	$ 600	$ 2,600

[1] Included in Other licenses for the Current Quarter, Current Six Months, Prior Year Quarter and Prior Year Six Months is $0.2 million, $0.6 million, $0.6 million, and $2.6 million, respectively, of revenue associated with the Umbro business purchases discussed above.