Fair Value of Financial Instruments - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015	Jan. 03, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Acquisition related contingent consideration	$ 218,408,000	$ 93,064,000	$ 218,408,000	$ 93,064,000
Fair value adjustment of acquisition related contingent consideration	(7,365,000)	3,992,000	26,060,000	3,003,000
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	0	0	0	0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0	0	0	0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0	0	0	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0	0	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net	0	0	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net	$ 0	$ 0	$ 0	$ 0
Distribution Agreements [Member] | Maximum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated useful life			40 years	40 years	40 years