|
STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION (Restricted Stock) (Details) (USD $)
Share data in Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 9 Months Ended | 3 Months Ended | ||
|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Sep. 30, 2014
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Share-based Compensation | $ 2,918,000us-gaap_ShareBasedCompensation | $ 3,421,000us-gaap_ShareBasedCompensation | $ 8,655,000us-gaap_ShareBasedCompensation | $ 10,268,000us-gaap_ShareBasedCompensation | |
| Restricted Stock | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Weighted-average grant date fair values of RSUs |
$ 1.13us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
$ 1.25us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
$ 1.24us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
$ 1.40us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
|
| Number of shares granted, stock awards |
10,282us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
||||
| Performance RSUs | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Number of shares granted, stock awards |
2,400us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = qtm_PerformanceRestrictedStockUnitsRsuMember |
||||
| Fair value of RSUs at the grant date |
3,000,000qtm_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodFairValue / us-gaap_AwardTypeAxis = qtm_PerformanceRestrictedStockUnitsRsuMember |
||||
| Share-based Compensation |
$ 200,000us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = qtm_PerformanceRestrictedStockUnitsRsuMember |
||||
| X | ||||||||||
|
- Definition
The fair value of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). No definition available.
|
| X | ||||||||||
|
- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|