Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments - Cash Flow Hedge Impact on Income Statement (Details)

v3.19.1
Financial Instruments - Cash Flow Hedge Impact on Income Statement (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Derivative    
Cost of goods sold $ (278,311) $ (288,076)
Interest (expense) income (28,618) (29,163)
Gain (loss) on cash flow hedging relationships | Amount of gain (loss) reclassified from AOCI into income    
Derivative    
Cost of goods sold 191 28
Interest (expense) income $ (123) $ (35)