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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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-Article 12
-Section 13
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Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Contractual rate at which a foreign currency can be purchased or sold.

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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.

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Date the derivative contract matures, in CCYY-MM-DD format.

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- Definition

Fair value as of the balance sheet date of all foreign currency derivative assets not designated as hedging instruments.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

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Market Risks and Derivative Hedge Contracts (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Derivatives, Fair Value [Line Items]
Total	$ 384		$ (362)
Derivative [Line Items]
Net gains associated with foreign currency derivatives	100	$ 500
Forward Purchase Contract, Pounds Sterling [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 7,940
Traded exchange rate	1.42
Value date	Apr. 18, 2016
Forward Sale Contract, Mexican Pesos [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 7,709
Traded exchange rate	17.90
Value date	Apr. 18, 2016
Forward Sale Contract, Mexican Pesos (2) [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 2,011
Traded exchange rate	17.90
Value date	Apr. 18, 2016
Forward Purchase Contract, Euro [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 2,766
Traded exchange rate	1.11
Value date	Apr. 18, 2016
Current Assets [Member]
Derivatives, Fair Value [Line Items]
Forward purchase contracts	$ 190		0
Forward sale contracts	263		23
Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Forward purchase contracts	0		(354)
Forward sale contracts	$ (69)		$ (31)