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v3.3.1.900

Subsequent Event - Additional Information (Detail) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended
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Jan. 31, 2016 | Mar. 31, 2016
Subsequent Event |  |
Subsequent Event [Line Items] |  |
Number of unvested stock options, forfeited | 200,000 |
Scenario, Forecast |  |
Subsequent Event [Line Items] |  |
Reversal of share-based compensation expense |  | $ 1.6

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- Definition Reversal Of Share Based Compensation Expense + References No definition available. + Details
Name: | mstr_ReversalOfShareBasedCompensationExpense
Namespace Prefix: | mstr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Number of non-vested options forfeited. + References No definition available. + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |