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Changes in Accumulated Other Comprehensive Income (Loss)
 9 Months Ended
Sep. 30, 2018
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]  
Changes in Accumulated Other Comprehensive Income (Loss)
Changes in Accumulated Other Comprehensive Income (Loss) 
The following table presents the changes in accumulated other comprehensive income (loss) by component for the nine months ended September 30, 2018 and 2017 (in thousands):
 
Accumulated Other Comprehensive Income (Loss) for the Nine Months Ended September 30, 2018
 
Accumulated Other Comprehensive Income (Loss) for the Nine Months Ended September 30, 2017
 
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
$
(250,355
)
 
$
(33,666
)
 
$
(50,244
)
 
$
(334,265
)
 
$
(820,850
)
 
$
(28,083
)
 
$
(67,551
)
 
$
(916,484
)
Other comprehensive income (loss) before reclassifications
106,505

 
5,863

 
(13,840
)
 
98,528

 
230,341

 
(7,130
)
 
14,210

 
237,421

Amounts reclassified from accumulated other comprehensive loss
4,071

 
1,086

 
—

 
5,157

 
151,319

 
850

 
—

 
152,169

Net current-period other comprehensive income (loss)
110,576

 
6,949

 
(13,840
)
 
103,685

 
381,660

 
(6,280
)
 
14,210

 
389,590

Ending balance
$
(139,779
)
 
$
(26,717
)
 
$
(64,084
)
 
$
(230,580
)
 
$
(439,190
)
 
$
(34,363
)
 
$
(53,341
)
 
$
(526,894
)

The following table presents reclassifications out of accumulated other comprehensive income (loss) for the quarters and nine months ended September 30, 2018 and 2017 (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 September 30, 2018
 
Quarter Ended September 30, 2017
 
Nine Months Ended September 30, 2018
 
Nine Months Ended September 30, 2017
 
Affected Line Item in Statements of
Comprehensive Income (Loss)
Gain (loss) on cash flow derivative hedges:
 
 

 
 
 
 

 
 
 
 
Interest rate swaps
 
$
(1,395
)
 
$
(7,860
)
 
$
(10,371
)
 
$
(24,580
)
 
Interest expense, net of interest capitalized
Foreign currency forward contracts
 
(3,157
)
 
(2,710
)
 
(9,625
)
 
(8,130
)
 
Depreciation and amortization expenses
Foreign currency forward contracts
 
(835
)
 
(1,512
)
 
13,808

 
(9,187
)
 
Other income (expense)
Foreign currency collar options
 
—

 
(602
)
 
—

 
(1,806
)
 
Depreciation and amortization expenses
Fuel swaps
 
466

 
1,758

 
658

 
6,533

 
Other income (expense)
Fuel swaps
 
4,548

 
(32,386
)
 
1,459

 
(114,149
)
 
Fuel
 
 
(373
)
 
(43,312
)
 
(4,071
)
 
(151,319
)
 
 
Amortization of defined benefit plans:
 
 

 
 
 
 
 
 
 
 
Actuarial loss
 
(372
)
 
(293
)
 
(1,086
)
 
(850
)
 
Payroll and related
 
 
(372
)
 
(293
)
 
(1,086
)
 
(850
)
 
 
Total reclassifications for the period
 
$
(745
)
 
$
(43,605
)
 
$
(5,157
)
 
$
(152,169
)