CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net Loss	$ (115,218)	$ (210,741)
Other Comprehensive Loss, Net of Tax
Currency translation adjustments	(28,133)	(145,634)
Employee benefit plan adjustments	2,348	3,060
Net unrealized gains on available-for-sale security	1,964	195
Net unrealized gains on derivative instruments:
Unrealized holding gains	4,057	9,190
Reclassification adjustments included in net loss	3,314	(3,210)
Net unrealized gains on derivative instruments	7,371	5,980
Other Comprehensive Loss, Net of Tax	(16,450)	(136,399)
Comprehensive Loss	$ (131,668)	$ (347,140)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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