Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements and Derivatives - Effects of cash flow hedge accounting on the consolidated statements of operations (Details 3)

v3.19.1
Fair Value Measurements and Derivatives - Effects of cash flow hedge accounting on the consolidated statements of operations (Details 3) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Derivatives Fair Value [Line Items]    
Fuel $ 98,253 $ 93,431
Depreciation and Amortization 169,741 131,244
Interest expense, net 73,503 59,698
Cash Flow Hedging    
Derivatives Fair Value [Line Items]    
Amount of gain or (loss) reclassified from accumulated other comprehensive income (loss) into income 7,000 1,785
Cash Flow Hedging | Fuel contracts | Fuel    
Derivatives Fair Value [Line Items]    
Amount of gain or (loss) reclassified from accumulated other comprehensive income (loss) into income 7,518 3,525
Cash Flow Hedging | Foreign currency forward contracts | Depreciation and amortization expense    
Derivatives Fair Value [Line Items]    
Amount of gain or (loss) reclassified from accumulated other comprehensive income (loss) into income (703) (1,159)
Cash Flow Hedging | Interest rate contracts | Interest expense, net    
Derivatives Fair Value [Line Items]    
Amount of gain or (loss) reclassified from accumulated other comprehensive income (loss) into income $ 185 $ (581)