Quarterly report pursuant to Section 13 or 15(d)

Fair Value Of Measurements (Details)

v2.4.1.9
Fair Value Of Measurements (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities $ 9,944us-gaap_MarketableSecurities $ 9,902us-gaap_MarketableSecurities
Forward exchange contract, asset, fair value 6,517us-gaap_ForeignCurrencyContractAssetFairValueDisclosure 3,512us-gaap_ForeignCurrencyContractAssetFairValueDisclosure
Forward exchange contract, liability, fair value   90us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure
Assets fair value 16,461us-gaap_AssetsFairValueDisclosure 13,414us-gaap_AssetsFairValueDisclosure
Liabilities Fair Value   90us-gaap_FinancialLiabilitiesFairValueDisclosure
Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 9,944us-gaap_MarketableSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
9,902us-gaap_MarketableSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Forward exchange contract, asset, fair value      
Forward exchange contract, liability, fair value      
Assets fair value 9,944us-gaap_AssetsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
9,902us-gaap_AssetsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Liabilities Fair Value      
Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Forward exchange contract, asset, fair value 6,517us-gaap_ForeignCurrencyContractAssetFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
3,512us-gaap_ForeignCurrencyContractAssetFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Forward exchange contract, liability, fair value   90us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Assets fair value 6,517us-gaap_AssetsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
3,512us-gaap_AssetsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Liabilities Fair Value   90us-gaap_FinancialLiabilitiesFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities      
Forward exchange contract, asset, fair value      
Forward exchange contract, liability, fair value      
Assets fair value      
Liabilities Fair Value