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Financial Instruments - Amounts Recognized in and Reclassified from AOCI (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2019
Jun. 30, 2018
Jun. 29, 2019
Jun. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]        
Net change with respect to derivative instruments and hedging activities, net of tax of $253, $(3), $(90), and $276 $ (929)   $ 328  
Cash Flow Hedging [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Net change with respect to derivative instruments and hedging activities, net of tax of $253, $(3), $(90), and $276 (711)   625  
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax (218)   (297)  
Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax   $ 18   $ (752)
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax   17   (275)
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 $253, $(3), $(90), and $276 (733)   619  
Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax   52   (743)
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 (218)   (297)  
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax   17   (275)
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 $253, $(3), $(90), and $276 22   6  
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax $ 0   $ 0  
Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax   (34)   (9)
(Gain) Loss Reclassified from AOCI (Effective Portion), Net of Tax   $ 0   $ 0