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Derivative Instruments and Hedging Activities - Hedge of Net Investment (Details) (Details) - Euro Notes - Designated Hedging Instruments - Net Investment Hedging € in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)	Dec. 31, 2017 EUR (€)
Derivative [Line Items]
Hedged notes | €		€ 284,986	€ 224,424	€ 103,682
Cumulative net gains | $	$ 20,261

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Amount of hedged item in hedging relationship. Excludes hedged asset or liability.

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Amount after tax and 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, attributable to parent entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683

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