Fair Values of Financial Instruments - Deferred Compensation Plan Commodity Hedging Agreements and Acquisition Related Contingent Consideration (Detail) - USD ($) $ in Thousands	Oct. 01, 2017	Jul. 02, 2017	Jan. 01, 2017	Oct. 02, 2016	Jul. 03, 2016	Jan. 03, 2016
Assets:
Commodity hedging agreements	$ 3,832		$ 1,289
Liabilities:
Commodity hedging agreements	2
Fair Value Level 1 [Member]
Assets:
Deferred compensation plan assets	30,968		24,903
Liabilities:
Deferred compensation plan liabilities	30,968		24,903
Fair Value Level 2 [Member]
Liabilities:
Non-public variable rate debt	547,000		452,000
Non-public fixed rate debt	126,000
Public debt securities	482,600		475,800
Fair Value Level 3 [Member]
Liabilities:
Acquisition related contingent consideration	308,933	$ 319,102	253,437	$ 218,408	$ 228,768	$ 136,570
Commodity Contract [Member] | Fair Value Level 2 [Member]
Assets:
Commodity hedging agreements	3,832		1,289
Liabilities:
Commodity hedging agreements	2
Carrying Amount [Member]
Assets:
Deferred compensation plan assets	30,968		24,903
Liabilities:
Deferred compensation plan liabilities	30,968		24,903
Non-public variable rate debt	546,354		451,222
Non-public fixed rate debt	124,814
Public debt securities	456,679		456,032
Acquisition related contingent consideration	308,933		253,437
Carrying Amount [Member] | Commodity Contract [Member]
Assets:
Commodity hedging agreements	3,832		1,289
Liabilities:
Commodity hedging agreements	2
Total Fair Value [Member]
Assets:
Deferred compensation plan assets	30,968		24,903
Liabilities:
Deferred compensation plan liabilities	30,968		24,903
Acquisition related contingent consideration	308,933		253,437
Non-public variable rate debt	547,000		452,000
Non-public fixed rate debt	126,000
Public debt securities	482,600		475,800
Total Fair Value [Member] | Commodity Contract [Member]
Assets:
Commodity hedging agreements	3,832		$ 1,289
Liabilities:
Commodity hedging agreements	$ 2