Changes in Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2021

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 loss by component for the six months ended June 30, 2021 and 2020 (in thousands):

	Accumulated Other Comprehensive Loss for the Six Months Ended June 30, 2021								Accumulated Other Comprehensive Loss for the Six Months Ended June 30, 2020
	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	$	(650,519)	$	(65,542)	$	(23,280)	$	(739,341)	$	(688,529)	$	(45,558)	$	(63,626)	$	(797,713)
Other comprehensive income (loss) before reclassifications	42,247		5,085		6,233		53,565		(221,571)		(14,900)		2,327		(234,144)
Amounts reclassified from accumulated other comprehensive loss	19,531		2,290		—		21,821		45,297		1,033		34,300		80,630
Net current-period other comprehensive income (loss)	61,778		7,375		6,233		75,386		(176,274)		(13,867)		36,627		(153,514)
Ending balance	$	(588,741)	$	(58,167)	$	(17,047)	$	(663,955)	$	(864,803)	$	(59,425)	$	(26,999)	$	(951,227)

Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Loss)

The following table presents reclassifications out of accumulated other comprehensive loss for the quarters and six months ended June 30, 2021 and 2020 (in thousands):

	Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income
Details About Accumulated Other Comprehensive Loss Components	Quarter Ended June 30, 2021		Quarter Ended June 30, 2020		Six Months Ended June 30, 2021		Six Months Ended June 30, 2020		Affected Line Item in Statements of Comprehensive Loss
Gain (loss) on cash flow derivative hedges:
Interest rate swaps	$	(11,448)	$	(6,016)	$	(20,957)	$	(9,407)	Interest expense, net of interest capitalized
Foreign currency forward contracts	(3,855)		(3,780)		(7,636)		(7,117)		Depreciation and amortization expenses
Foreign currency forward contracts	(515)		(2,581)		(1,806)		(4,344)		Other income (expense)
Fuel swaps	(7)		2,149		(414)		2,493		Other income (expense)
Fuel swaps	7,523		(12,689)		11,282		(26,922)		Fuel
	(8,302)		(22,917)		(19,531)		(45,297)
Amortization of defined benefit plans:
Actuarial loss	(1,547)		(528)		(2,290)		(1,033)		Payroll and related
	(1,547)		(528)		(2,290)		(1,033)
Release of net foreign cumulative translation due to sale or liquidation of businesses:
Foreign cumulative translation	—		(34,300)		—		(34,300)		Other operating
Total reclassifications for the period	$	(9,849)	$	(57,745)	$	(21,821)	$	(80,630)