Accumulated Other Comprehensive Loss (Income) Related to Derivative Transactions (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Oct. 03, 2020	Oct. 05, 2019	Oct. 03, 2020	Oct. 05, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Net change in fair value of derivatives	[1]	$ 9,409	$ (7,124)	$ 2,202	$ (4,577)
Closed Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Estimated amount of derivatives to be reclassified in income from AOCI				(140)
Closed Contracts | Commodity price risk derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Estimated amount of derivatives to be reclassified in income from AOCI				(345)
Closed Contracts | Interest rate risk derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Estimated amount of derivatives to be reclassified in income from AOCI				205
Expiring in 2021
Derivative Instruments, Gain (Loss) [Line Items]
Net change in fair value of derivatives				5,775
Expiring in 2021 | Commodity price risk derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Net change in fair value of derivatives				5,775
Expiring in 2022
Derivative Instruments, Gain (Loss) [Line Items]
Net change in fair value of derivatives				(23)
Expiring in 2022 | Commodity price risk derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Net change in fair value of derivatives				(23)
Closed or Expiring Over Next Four Years
Derivative Instruments, Gain (Loss) [Line Items]
Net change in fair value of derivatives				5,612
Closed or Expiring Over Next Four Years | Commodity price risk derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Net change in fair value of derivatives				5,407
Closed or Expiring Over Next Four Years | Interest rate risk derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Net change in fair value of derivatives				$ 205

[1] Amounts in parentheses indicate debits to determine net income.