Legal Proceedings, Commitments and Contingencies - Additional Information (Details) - USD ($)		9 Months Ended
	Jul. 29, 2015	Sep. 30, 2015
Commitments And Contingencies Disclosure [Abstract]
Royalties paid, minimum (in hundredths)		0.50%
Royalties paid, maximum (in hundredths)		5.00%
Sublicense fees paid, maximum (in hundredths)		40.00%
Estimate of milestone payments		$ 76,500,000
Value of the damage seeks by plaintiff	$ 465,000