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Foreign Currency Forward Contracts (Details) - Foreign exchange forward contracts - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Designated as Hedging Instrument | Cash flow hedge
Derivative Financial Instruments
Notional amount	$ 17.6	$ 0.0
Designated as Hedging Instrument | Cash flow hedge | Maximum
Derivative Financial Instruments
Maturity term	1 year
Not Designated as Hedging Instrument
Derivative Financial Instruments
Notional amount	$ 39.3	$ 6.1
Not Designated as Hedging Instrument | Maximum
Derivative Financial Instruments
Maturity term	1 year

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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- Details

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- Details

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