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Consolidated Statements Of Operations (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Consolidated Statements Of Operations [Abstract] |  |  |  |  |
Revenues | $ 371,112 us-gaap_Revenues |  | $ 361,772 us-gaap_Revenues |  | $ 446,651 us-gaap_Revenues
Cost of revenues | 286,670 us-gaap_CostOfRevenue |  | 249,543 us-gaap_CostOfRevenue |  | 308,354 us-gaap_CostOfRevenue
Gross profit | 84,442 us-gaap_GrossProfit |  | 112,229 us-gaap_GrossProfit |  | 138,297 us-gaap_GrossProfit
Operating expenses: |  |  |  |  |
Research and development, net | 35,004 us-gaap_ResearchAndDevelopmentExpense |  | 42,962 us-gaap_ResearchAndDevelopmentExpense |  | 47,487 us-gaap_ResearchAndDevelopmentExpense
Selling and marketing | 56,059 us-gaap_SellingAndMarketingExpense |  | 67,743 us-gaap_SellingAndMarketingExpense |  | 77,326 us-gaap_SellingAndMarketingExpense
General and administrative | 23,657 us-gaap_GeneralAndAdministrativeExpense |  | 26,757 us-gaap_GeneralAndAdministrativeExpense |  | 27,519 us-gaap_GeneralAndAdministrativeExpense
Restructuring costs | 6,816 us-gaap_RestructuringCharges |  | 9,345 us-gaap_RestructuringCharges |  | 4,608 us-gaap_RestructuringCharges
Goodwill impairment | 14,765 us-gaap_GoodwillImpairmentLoss | [1] |  | [1] |
Other income | (19,827)us-gaap_OtherOperatingIncome |  | (7,657)us-gaap_OtherOperatingIncome |  |
Total operating expenses | 116,474 us-gaap_OperatingExpenses |  | 139,150 us-gaap_OperatingExpenses |  | 156,940 us-gaap_OperatingExpenses
Operating loss | 32,032 us-gaap_OperatingIncomeLoss |  | 26,921 us-gaap_OperatingIncomeLoss |  | 18,643 us-gaap_OperatingIncomeLoss
Financial expenses, net | 37,946 us-gaap_NonoperatingIncomeExpense |  | 14,018 us-gaap_NonoperatingIncomeExpense |  | 3,547 us-gaap_NonoperatingIncomeExpense
Loss before taxes on income | 69,978 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |  | 40,939 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |  | 22,190 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Taxes on income | 6,501 us-gaap_IncomeTaxExpenseBenefit |  | 6,539 us-gaap_IncomeTaxExpenseBenefit |  | 1,201 us-gaap_IncomeTaxExpenseBenefit
Net loss | $ 76,479 us-gaap_NetIncomeLoss |  | $ 47,478 us-gaap_NetIncomeLoss |  | $ 23,391 us-gaap_NetIncomeLoss
Net loss per share: |  |  |  |  |
Basic and diluted net loss per share | $ 1.22 us-gaap_EarningsPerShareBasicAndDiluted |  | $ 1.23 us-gaap_EarningsPerShareBasicAndDiluted |  | $ 0.64 us-gaap_EarningsPerShareBasicAndDiluted
Weighted average number of ordinary shares used in computing basic and diluted net loss per share | 62,518,602 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted |  | 38,519,606 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted |  | 36,457,989 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted
[1] | During the fourth quarter of 2014, the Company determined that sufficient indicators of potential impairment existed to require additional goodwill impairment analysis. These indicators included the trading value of the Company's stock at the time of the impairment test, coupled with existing market conditions and business trends. Based on the step one and step two analyses (see also note 2l), the Company recorded complete goodwill impairment charge in 2014, in the amount of $ 14,765.

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