Fair Values of Financial Instruments - Deferred Compensation Plan Commodity Hedging Agreements and Acquisition Related Contingent Consideration (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 29, 2019	Dec. 30, 2018
Commodity derivative instruments
Assets:
Commodity derivative instruments	$ 2,473	$ 1,007
Liabilities:
Commodity derivative instruments	0	1,174
Fair Value Level 3
Liabilities:
Acquisition related contingent consideration	434,694	446,684	$ 382,898
Carrying Amount
Assets:
Deferred compensation plan assets	51,742	42,543
Pension plan assets	319,699	276,085
Liabilities:
Deferred compensation plan liabilities	51,742	42,543
Long-term debt	940,465	1,029,920
Acquisition related contingent consideration	434,694	446,684
Carrying Amount | Commodity derivative instruments
Assets:
Commodity derivative instruments	2,473	1,007
Liabilities:
Commodity derivative instruments		1,174
Total Fair Value
Assets:
Deferred compensation plan assets	51,742	42,543
Pension plan assets	319,699	276,085
Liabilities:
Deferred compensation plan liabilities	51,742	42,543
Long-term debt	1,015,700	1,058,700
Acquisition related contingent consideration	434,694	446,684
Total Fair Value | Commodity derivative instruments
Assets:
Commodity derivative instruments	2,473	1,007
Liabilities:
Commodity derivative instruments		1,174
Total Fair Value | Fair Value Level 1
Assets:
Deferred compensation plan assets	51,742	42,543
Pension plan assets	308,849	276,085
Liabilities:
Deferred compensation plan liabilities	51,742	42,543
Long-term debt	0	0
Acquisition related contingent consideration	0	0
Total Fair Value | Fair Value Level 1 | Commodity derivative instruments
Assets:
Commodity derivative instruments	0	0
Liabilities:
Commodity derivative instruments		0
Total Fair Value | Fair Value Level 2
Assets:
Deferred compensation plan assets	0	0
Pension plan assets	10,850	0
Liabilities:
Deferred compensation plan liabilities	0	0
Long-term debt	1,015,700	1,058,700
Acquisition related contingent consideration	0	0
Total Fair Value | Fair Value Level 2 | Commodity derivative instruments
Assets:
Commodity derivative instruments	2,473	1,007
Liabilities:
Commodity derivative instruments		1,174
Total Fair Value | Fair Value Level 3
Assets:
Deferred compensation plan assets	0	0
Pension plan assets	0	0
Liabilities:
Deferred compensation plan liabilities	0	0
Long-term debt	0	0
Acquisition related contingent consideration	434,694	446,684
Total Fair Value | Fair Value Level 3 | Commodity derivative instruments
Assets:
Commodity derivative instruments	$ 0	0
Liabilities:
Commodity derivative instruments		$ 0