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Changes in Accumulated Other Comprehensive (Loss) Income (Tables) | 9 Months Ended
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Sep. 30, 2018
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 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 | )
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 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 | ) |  |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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