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Shareholders' Equity - Schedule of Other Comprehensive Income (Loss) Tax Effect (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Before-tax amount [Abstract] |  |  |
Foreign currency translation adjustment | $ (29,130) | $ 54,218 | $ (23,280)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax | 0 | 484 | (1,407)
Net unrealized gain (loss) on derivative instruments designated as cash flow hedges | 2,908 | 585 | (1,768)
Net hedging (gain) loss reclassified into net income (loss) | (2,507) | 916 | 1,322
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax | 2,343 | 3,401 | (6,256)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax | 1,596 | 1,782 | 2,752
Total other comprehensive income (loss), before tax | (24,790) | 61,386 | (28,637)
Tax (provision) benefit [Abstract] |  |  |
Foreign currency translation adjustment | 289 | (364) | (290)
Net unrealized gain (loss) on derivative instruments designated as cash flow hedges | (322) | (225) | 681
Net hedging (gain) loss reclassified into net income (loss) | 156 | (353) | (510)
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax | (690) | (1,047) | 65
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax | (470) | (548) | (29)
Total other comprehensive income (loss) tax (provision) benefit | (1,037) | (2,537) | (83)
Net-of-tax amount |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent | (28,841) | 53,854 | (23,570)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax | 0 | 484 | (1,407)
Net unrealized gain (loss) on derivative instruments designated as cash flow hedges | 2,586 | 360 | (1,087)
Net hedging (gain) loss reclassified into net income (loss) | (2,351) | 563 | 812
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax | 1,653 | 2,354 | (6,191)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | 1,126 | 1,234 | 2,723
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | $ (25,827) | $ 58,849 | $ (28,720)

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