Fair Values of Financial Instruments - Deferred Compensation Plan Commodity Hedging Agreements and Acquisition Related Contingent Consideration (Detail) - USD ($) $ in Thousands	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Assets:
Pension plan assets held in trust funds	$ 276,085	$ 255,389
Commodity hedging agreements	1,007
Liabilities:
Commodity hedging agreements	1,174	10,305
Fair Value Level 1 [Member]
Assets:
Deferred compensation plan assets	42,543	33,160
Pension plan assets held in trust funds	276,085
Liabilities:
Deferred compensation plan liabilities	42,543	33,160
Fair Value Level 2 [Member]
Liabilities:
Non-public variable rate debt	307,500	372,500
Non-public fixed rate debt	383,900	261,200
Public debt securities	367,300	455,400
Fair Value Level 2 [Member] \| Commodity Contract [Member]
Assets:
Commodity hedging agreements	1,007
Liabilities:
Commodity hedging agreements	1,174	10,305
Fair Value Level 3 [Member]
Liabilities:
Acquisition related contingent consideration	446,684	382,898	$ 381,291
Carrying Amount [Member]
Assets:
Deferred compensation plan assets	42,543	33,160
Pension plan assets held in trust funds	276,085
Liabilities:
Deferred compensation plan liabilities	42,543	33,160
Non-public variable rate debt	307,250	372,074
Non-public fixed rate debt	374,723	274,717
Public debt securities	347,947	457,612
Acquisition related contingent consideration	446,684	382,898
Carrying Amount [Member] \| Commodity Contract [Member]
Assets:
Commodity hedging agreements	1,007
Liabilities:
Commodity hedging agreements	1,174	10,305
Total Fair Value [Member]
Assets:
Deferred compensation plan assets	42,543	33,160
Pension plan assets held in trust funds	276,085
Liabilities:
Deferred compensation plan liabilities	42,543	33,160
Acquisition related contingent consideration	446,684	382,898
Non-public variable rate debt	307,500	372,500
Non-public fixed rate debt	383,900	261,200
Public debt securities	367,300	455,400
Total Fair Value [Member] \| Commodity Contract [Member]
Assets:
Commodity hedging agreements	1,007
Liabilities:
Commodity hedging agreements	$ 1,174	$ 10,305

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