XML 19 R50.htm IDEA: XBRL DOCUMENT v2.4.1.9

Subsequent Events - Additional Information (Detail) (2013 Plan, Class A)	1 Months Ended
	Apr. 30, 2015	Sep. 30, 2013
Subsequent Event [Line Items]
Share-based compensation, stock authorized		600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Subsequent Event
Subsequent Event [Line Items]
Share-based compensation, stock authorized	1,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = mstr_StockIncentivePlanTwentyThirteenMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Subsequent Event | Non Employee Directors
Subsequent Event [Line Items]
Number of automatic annual stock option grants authorized to each of the Company's non-employee directors beginning 2015	5,000mstr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedPerParticipant / us-gaap_PlanNameAxis = mstr_StockIncentivePlanTwentyThirteenMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember / us-gaap_TitleOfIndividualAxis = mstr_NonEmployeeDirectorsMember

X

- Definition

Share Based Compensation Arrangement by Share Based Payment Award Number of Shares Authorized per Participant

+ References

No definition available.

+ Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Details

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