Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Components Of Accumulated Other Comprehensive Income) (Details)

v2.4.1.9
Accumulated Other Comprehensive Income (Components Of Accumulated Other Comprehensive Income) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance as of December 31, 2013 $ 6,563us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax    
Other comprehensive (loss) income before reclassifications (8,736)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax    
Amounts reclassified from other comprehensive (loss) income 239us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax    
Net current period other comprehensive (loss) income (8,975)us-gaap_OtherComprehensiveIncomeLossNetOfTax 852us-gaap_OtherComprehensiveIncomeLossNetOfTax 2,967us-gaap_OtherComprehensiveIncomeLossNetOfTax
Balance as of December 31, 2014 (2,412)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax 6,563us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax  
Unrealized losses on Marketable Securities [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive (loss) income before reclassifications (59)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember
   
Net current period other comprehensive (loss) income (59)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember
   
Balance as of December 31, 2014 (59)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember
   
Foreign Currency Translation Adjustments [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance as of December 31, 2013 7,174us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
   
Other comprehensive (loss) income before reclassifications (11,418)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
   
Net current period other comprehensive (loss) income (11,418)us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
   
Balance as of December 31, 2014 (4,244)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
   
Unrealized Gains (Losses) on Cash Flow Hedges [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance as of December 31, 2013 (611)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
   
Other comprehensive (loss) income before reclassifications 2,741us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
   
Amounts reclassified from other comprehensive (loss) income 239us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
   
Net current period other comprehensive (loss) income 2,502us-gaap_OtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
   
Balance as of December 31, 2014 $ 1,891us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember