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Changes in Accumulated Other Comprehensive Income (Loss) (Tables)
 6 Months Ended
Jun. 30, 2019
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]  
Schedule of Changes In Accumulated Other Comprehensive Income (Loss) by Component
The following table presents the changes in accumulated other comprehensive income (loss) by component for the six months ended June 30, 2019 and 2018 (in thousands):
 
Accumulated Other Comprehensive Income (Loss) for the Six Months Ended June 30, 2019
 
Accumulated Other Comprehensive Income (Loss) for the Six Months Ended June 30, 2018
 
Changes related to cash flow derivative hedges
 
Changes in defined benefit plans
 
Foreign currency translation adjustments
 
Accumulated other comprehensive loss
 
Changes related to cash flow derivative hedges
 
Changes in defined benefit plans
 
Foreign currency translation adjustments
 
Accumulated other comprehensive loss
Accumulated comprehensive loss at beginning of the year
$
(537,216
)
 
$
(26,023
)
 
$
(64,495
)
 
$
(627,734
)
 
$
(250,355
)
 
$
(33,666
)
 
$
(50,244
)
 
$
(334,265
)
Other comprehensive income (loss) before reclassifications
(3,249
)
 
(10,758
)
 
7,827

 
(6,180
)
 
69,932

 
5,082

 
(10,361
)
 
64,653

Amounts reclassified from accumulated other comprehensive loss
(19,642
)
 
383

 
—

 
(19,259
)
 
3,698

 
714

 
—

 
4,412

Net current-period other comprehensive income (loss)
(22,891
)
 
(10,375
)
 
7,827

 
(25,439
)
 
73,630

 
5,796

 
(10,361
)
 
69,065

Ending balance
$
(560,107
)
 
$
(36,398
)
 
$
(56,668
)
 
$
(653,173
)
 
$
(176,725
)
 
$
(27,870
)
 
$
(60,605
)
 
$
(265,200
)
Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Loss)
The following table presents reclassifications out of accumulated other comprehensive income (loss) for the quarters and six months ended June 30, 2019 and 2018 (in thousands):
 
 
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income
 
 
Details About Accumulated Other Comprehensive Income (Loss) Components
 
Quarter Ended June 30, 2019
 
Quarter Ended June 30, 2018
 
Six Months Ended June 30, 2019
 
Six Months Ended June 30, 2018
 
Affected Line Item in Statements of
Comprehensive Income (Loss)
Gain (loss) on cash flow derivative hedges:
 
 

 
 
 
 

 
 
 
 
Interest rate swaps
 
$
(409
)
 
$
(2,138
)
 
$
(800
)
 
$
(8,976
)
 
Interest expense, net of interest capitalized
Foreign currency forward contracts
 
(3,545
)
 
(3,156
)
 
(6,879
)
 
(6,468
)
 
Depreciation and amortization expenses
Foreign currency forward contracts
 
(1,300
)
 
14,601

 
(2,615
)
 
14,643

 
Other income (expense)
Fuel swaps
 
(1,188
)
 
(133
)
 
(1,444
)
 
192

 
Other income (expense)
Fuel swaps
 
13,362

 
2,043

 
31,380

 
(3,089
)
 
Fuel
 
 
6,920

 
11,217

 
19,642

 
(3,698
)
 
 
Amortization of defined benefit plans:
 
 

 
 
 
 
 
 
 
 
Actuarial loss
 
(195
)
 
(372
)
 
(383
)
 
(714
)
 
Payroll and related
 
 
(195
)
 
(372
)
 
(383
)
 
(714
)
 
 
Foreign cumulative translation
 
—

 
—

 
—

 
—

 
Other operating
Total reclassifications for the period
 
$
6,725

 
$
10,845

 
$
19,259

 
$
(4,412
)