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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of Credit Risk (Details) (Sales, Customer concentration risk)
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12 Months Ended | ||
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Mar. 31, 2014
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Mar. 31, 2015
Rate
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Mar. 31, 2013
Rate
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| Concentration Risk [Line Items] | |||
| Percentage of revenue | 31.00%us-gaap_ConcentrationRiskPercentage1 | ||
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Top five customers
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| Concentration Risk [Line Items] | |||
| Percentage of revenue |
31.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = qtm_TopFiveCustomersMember |
32.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = qtm_TopFiveCustomersMember |
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- Details
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- Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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