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Fair Value Measurements and Derivative Instruments (Impact in the Statement of Operations) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Commodity derivative contracts        
Derivative Instruments, Gain (Loss)        
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net $ 800   $ 800  
Commodity derivative contracts | Designated as Hedging Instrument | Cost of sales        
Derivative Instruments, Gain (Loss)        
Amount of (Gain)/Loss Recognized (2,977) $ 4,498 (5,955) $ 5,047
Interest rate swap contract | Designated as Hedging Instrument | Interest expense        
Derivative Instruments, Gain (Loss)        
Amount of (Gain)/Loss Recognized $ 581 $ 289 $ 1,002 $ 1,285