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Financial Instruments - Amounts Recognized in and Reclassified from AOCI (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Derivative Instruments, Gain (Loss) [Line Items]        
Net change with respect to derivative instruments and hedging activities, net of tax of $56, $(33), $(34), and $243 $ (195)   $ 133  
Cash Flow Hedging [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Net change with respect to derivative instruments and hedging activities, net of tax of $56, $(33), $(34), and $243 138   763  
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax (333)   (630)  
Gain Recognized in AOCI (Effective Portion), Net of Tax   $ 311   $ (441)
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax   (180)   (455)
Commodity Contracts [Member] | Cash Flow Hedging [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Net change with respect to derivative instruments and hedging activities, net of tax of $56, $(33), $(34), and $243 130   749  
Gain Recognized in AOCI (Effective Portion), Net of Tax   305   (438)
Commodity Contracts [Member] | Cash Flow Hedging [Member] | Cost of Goods Sold [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax (332)   (629)  
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax   (180)   (455)
Other [Member] | Cash Flow Hedging [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Net change with respect to derivative instruments and hedging activities, net of tax of $56, $(33), $(34), and $243 8   14  
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax $ (1)   $ (1)  
Gain Recognized in AOCI (Effective Portion), Net of Tax   6   (3)
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax   $ 0   $ 0