Fair Value of Financial Instruments - Deferred Compensation Plan Commodity Hedging Agreements, Debt and Acquisition Related Contingent Consideration (Detail) - USD ($) $ in Thousands	Oct. 02, 2016	Jul. 03, 2016	Jan. 03, 2016	Sep. 27, 2015	Jun. 28, 2015	Dec. 28, 2014
Assets:
Commodity hedging agreements	$ 758		$ 3	$ 39
Liabilities:
Acquisition related contingent consideration	218,408			93,064
Commodity hedging agreements			3,442	2,275
Fair Value Level 1 [Member]
Assets:
Deferred compensation plan assets	23,891		20,755	19,660
Liabilities:
Deferred compensation plan liabilities	23,891		20,755	19,660
Fair Value Level 2 [Member]
Liabilities:
Public debt securities	497,500		645,400	294,200
Non-public variable rate debt	365,000			275,000
Fair Value Level 3 [Member]
Liabilities:
Acquisition related contingent consideration	218,408	$ 228,768	136,570	93,064	$ 94,068	$ 46,850
Commodity Contract [Member] | Fair Value Level 2 [Member]
Assets:
Commodity hedging agreements	758		3	39
Liabilities:
Commodity hedging agreements			3,442	2,275
Carrying Amount [Member]
Assets:
Deferred compensation plan assets	23,891		20,755	19,660
Liabilities:
Deferred compensation plan liabilities	23,891		20,755	19,660
Public debt securities	455,885		619,628	272,524
Non-public variable rate debt	364,178			275,000
Acquisition related contingent consideration	218,408		136,570	93,064
Carrying Amount [Member] | Commodity Contract [Member]
Assets:
Commodity hedging agreements	758		3	39
Liabilities:
Commodity hedging agreements			3,442	2,275
Total Fair Value [Member]
Assets:
Deferred compensation plan assets	23,891		20,755	19,660
Liabilities:
Deferred compensation plan liabilities	23,891		20,755	19,660
Acquisition related contingent consideration	218,408		136,570	93,064
Public debt securities	497,500		645,400	294,200
Non-public variable rate debt	365,000			275,000
Total Fair Value [Member] | Commodity Contract [Member]
Assets:
Commodity hedging agreements	$ 758		3	39
Liabilities:
Commodity hedging agreements			$ 3,442	$ 2,275