Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustment, tax	$ 4,419	$ 0	$ 0
Net investment hedge CTA gain (loss), tax	1,358	0	0
Unrealized gain on available-for-sale securities, tax	0	(10)	(784)
Unrealized gain (loss) on cash flow hedges, tax	(14,557)	18,542	(6,760)
Net actuarial gain (loss) on defined benefit plans, tax	$ (15)	$ 39	$ (8)

Amount of income tax expense (benefit) from transactions on foreign currency derivatives that are designated as, and are effective as, economic hedges of a net investment in a foreign entity.

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-SubTopic 30
-Section 45
-Paragraph 20
-Subparagraph (c)
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Amount of tax expense (benefit), after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount of tax expense (benefit), after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.

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