Derivative Financial Instruments - Summary of Forward Foreign Currency Exchange Contracts Outstanding (Details) - Designated as Hedging Instrument € in Thousands, £ in Thousands, SFr in Thousands	Dec. 31, 2019 EUR (€) derivative_instrument	Dec. 31, 2019 GBP (£) derivative_instrument	Dec. 31, 2019 CHF (SFr) derivative_instrument
Foreign Exchange Forward - Euros
Derivative [Line Items]
Number of Contracts	23	23	23
Aggregate Notional Amount in Foreign Currency \| €	€ 1,500
Foreign Exchange Forward - British Pounds
Derivative [Line Items]
Number of Contracts	15	15	15
Aggregate Notional Amount in Foreign Currency \| £		£ 2,285
Foreign Exchange Forward - Swiss Francs
Derivative [Line Items]
Number of Contracts	10	10	10
Aggregate Notional Amount in Foreign Currency \| SFr			SFr 129
Foreign Exchange Contracts
Derivative [Line Items]
Number of Contracts	48	48	48

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No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

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- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

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-Publisher FASB
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-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

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