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Derivative Instruments and Hedging Activities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Jun. 30, 2019
Dec. 31, 2018
Jun. 30, 2018
Derivatives designated as hedging instruments:          
Derivative contracts          
Assets     $ 120 $ 92 $ 11
Liabilities     (249) (1,086) (915)
Derivatives designated as hedging instruments: | Foreign currency forward contracts          
Derivative contracts          
Notional Amounts     11,050 11,050  
Liabilities     (17) (407)  
Derivatives designated as hedging instruments: | Commodity futures contracts          
Derivative contracts          
Notional Amounts     6,911 9,580 9,058
Assets     120 92 11
Liabilities     $ (232) $ (679) $ (915)
Forecast | Foreign currency forward contracts          
Derivative contracts          
Loss to be reclassified $ (13) $ (4)      
Forecast | Commodity futures contracts          
Derivative contracts          
Gain (loss) to be reclassified $ 79 $ (191)