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Accumulated Other Comprehensive Loss (Income) Related to Derivative Transactions (Detail)
$ in Thousands
12 Months Ended
Dec. 28, 2019
USD ($)
Closed Contracts  
Derivative Instruments, Gain (Loss) [Line Items]  
Estimated amount of derivatives to be reclassified in income from AOCI $ 31
Closed Contracts | Commodity price risk derivatives  
Derivative Instruments, Gain (Loss) [Line Items]  
Estimated amount of derivatives to be reclassified in income from AOCI (91)
Closed Contracts | Interest rate risk derivatives  
Derivative Instruments, Gain (Loss) [Line Items]  
Estimated amount of derivatives to be reclassified in income from AOCI 122
Expiring in 2020  
Derivative Instruments, Gain (Loss) [Line Items]  
Net change in fair value of derivatives 1,777
Expiring in 2020 | Commodity price risk derivatives  
Derivative Instruments, Gain (Loss) [Line Items]  
Net change in fair value of derivatives 1,777
Expiring in 2021  
Derivative Instruments, Gain (Loss) [Line Items]  
Net change in fair value of derivatives 116
Expiring in 2021 | Commodity price risk derivatives  
Derivative Instruments, Gain (Loss) [Line Items]  
Net change in fair value of derivatives 116
Expiring in 2022  
Derivative Instruments, Gain (Loss) [Line Items]  
Net change in fair value of derivatives (266)
Expiring in 2022 | Commodity price risk derivatives  
Derivative Instruments, Gain (Loss) [Line Items]  
Net change in fair value of derivatives (266)
Closed or Expiring Over Next Four Years  
Derivative Instruments, Gain (Loss) [Line Items]  
Net change in fair value of derivatives 1,658
Closed or Expiring Over Next Four Years | Commodity price risk derivatives  
Derivative Instruments, Gain (Loss) [Line Items]  
Net change in fair value of derivatives 1,536
Closed or Expiring Over Next Four Years | Interest rate risk derivatives  
Derivative Instruments, Gain (Loss) [Line Items]  
Net change in fair value of derivatives $ 122