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Stock-Based Compensation (Details 2)
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3 Months Ended |
9 Months Ended |
12 Months Ended |
3 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2014
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Mar. 31, 2008
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Jun. 30, 2014
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Sep. 30, 2012
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Jun. 30, 2011
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Mar. 31, 2014
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| Stock options |
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| Stockholders' equity |
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| Options outstanding (in shares) |
13,307,675us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
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13,307,675us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
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12,851,688us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
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| Options granted (in shares) |
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
|
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
|
1,085,800us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
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| Portion vesting one year after the issuance date (as a percent) |
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25.00%cpst_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentageOneYearAfterIssuance
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
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| Portion vesting on first day of each month after one year from the issuance date (as a percent) |
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2.083%cpst_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentageVestingOnFirstDayOfEachMonthAfterOneYearOfIssuanceDate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
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| Vesting period of awards after issuance date |
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1 year
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| Vesting period after one year of grant |
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48 months
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| Contractual term |
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10 years
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| Restricted stock units |
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| Stockholders' equity |
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| Granted (in shares) |
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919,666us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
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| Restricted stock units outstanding (in shares) |
2,121,015us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
|
|
2,121,015us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
|
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2,061,224us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
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| Vesting period |
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4 years
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| Restricted stock units | Vice President of Operations and Senior vice president of customer service |
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| Stockholders' equity |
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| Restricted stock units outstanding (in shares) |
93,750us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_TitleOfIndividualAxis
= cpst_VicePresidentOfOperationsAndSeniorVicePresidentOfCustomerServiceMember
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93,750us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_TitleOfIndividualAxis
= cpst_VicePresidentOfOperationsAndSeniorVicePresidentOfCustomerServiceMember
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| Restricted stock units | Vice President of Operations |
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| Stockholders' equity |
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| Restricted stock units outstanding (in shares) |
62,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_TitleOfIndividualAxis
= cpst_VicePresidentOfOperationsMember
|
|
62,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_TitleOfIndividualAxis
= cpst_VicePresidentOfOperationsMember
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| Restricted stock units | Senior vice president of customer service |
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| Stockholders' equity |
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| Restricted stock units outstanding (in shares) |
31,250us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_TitleOfIndividualAxis
= cpst_SeniorVicePresidentOfCustomerServiceMember
|
|
31,250us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_TitleOfIndividualAxis
= cpst_SeniorVicePresidentOfCustomerServiceMember
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| 1993 Incentive Stock Plan and 2000 Equity Incentive Plan |
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| Stockholders' equity |
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| Number of shares of common stock reserved for issuance |
27,980,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= cpst_CapstoneTurbineCorporation1993IncentiveStockPlanAnd2000EquityIncentivePlanMember
|
|
27,980,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= cpst_CapstoneTurbineCorporation1993IncentiveStockPlanAnd2000EquityIncentivePlanMember
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| Non-qualified stock options |
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| Stockholders' equity |
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| Options outstanding (in shares) |
3,800,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
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3,800,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
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| Non-qualified stock options | Non-qualified stock options issued prior to Fiscal 2008 |
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| Stockholders' equity |
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| Options granted (in shares) |
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3,050,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= cpst_OptionsGrantedPriorToFiscal2008Member
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
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| Non-qualified stock options | Stock options |
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| Stockholders' equity |
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| Options granted (in shares) |
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250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
|
250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
|
250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
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| Non-qualified stock options | Stock options | President and chief executive officer |
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| Stockholders' equity |
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| Options granted (in shares) |
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2,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
/ us-gaap_TitleOfIndividualAxis
= cpst_ChiefExecutiveOfficerAndPresidentMember
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| Non-qualified stock options | Stock options | Executive vice president of sales and marketing |
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| Stockholders' equity |
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| Options granted (in shares) |
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850,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
/ us-gaap_TitleOfIndividualAxis
= cpst_ExecutiveVicePresidentOfSalesAndMarketingMember
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| Non-qualified stock options | Stock options | Senior vice president of program management |
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| Stockholders' equity |
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| Options granted (in shares) |
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250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
/ us-gaap_TitleOfIndividualAxis
= cpst_SeniorVicePresidentOfProgramManagementMember
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| Non-qualified stock options | Stock options | Vice President of Operations |
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| Stockholders' equity |
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| Options granted (in shares) |
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250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
/ us-gaap_TitleOfIndividualAxis
= cpst_VicePresidentOfOperationsMember
|
|
|
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| Non-qualified stock options | Stock options | Senior vice president of customer service |
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| Stockholders' equity |
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|
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| Options granted (in shares) |
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|
250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= cpst_NonqualifiedStockOptionsPlanMember
/ us-gaap_TitleOfIndividualAxis
= cpst_SeniorVicePresidentOfCustomerServiceMember
|
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| Non-qualified stock options | Stock options | Senior vice president of human resources |
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| Stockholders' equity |
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| Options granted (in shares) |
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|
200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
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/ us-gaap_TitleOfIndividualAxis
= cpst_SeniorVicePresidentOfHumanResourcesMember
|
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