Derivative Instruments and Hedging Activities (Details 4)	Dec. 31, 2015 USD ($)
Foreign currency forwards
Derivative instruments and hedging activities
Minimum commitment amount for hedging	$ 50,000

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.

No definition available.

Name:	us-gaap_DerivativeInstrumentsGainLossLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration