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Reconciliation of Effective Income Tax Rate (Detail)
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12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Schedule Of Effective Tax Rates Line Items | |||
| Income tax expense at federal statutory rate | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate |
| State taxes, net of federal tax effect | (4.30%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | 2.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | 3.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes |
| Foreign earnings taxed at different rates | 2.90%us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | (18.30%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | (21.50%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential |
| Withholding tax | 14.30%us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsOther | 9.70%us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsOther | 6.30%us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsOther |
| Foreign tax credit | (9.60%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsForeign | (5.40%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsForeign | (3.40%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsForeign |
| Other international components | 0.80%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments | 3.40%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments | 1.90%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments |
| Change in valuation allowance | 21.10%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | (0.80%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | 0.10%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance |
| Deferred tax adjustments and rate changes | (4.90%)mstr_EffectiveIncomeTaxRateReconciliationAdjustmentToDeferredTaxAndRateChanges | (2.80%)mstr_EffectiveIncomeTaxRateReconciliationAdjustmentToDeferredTaxAndRateChanges | 0.60%mstr_EffectiveIncomeTaxRateReconciliationAdjustmentToDeferredTaxAndRateChanges |
| Meals and entertainment | 5.90%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment | 4.50%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment | 2.90%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment |
| Other tax credits | 2.50%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther | 2.50%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther | 2.60%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther |
| Subpart F income | 4.00%us-gaap_EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings | 2.40%us-gaap_EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings | 1.20%us-gaap_EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings |
| Research and development tax credit | (13.70%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch | (12.60%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch | 0.70%us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch |
| Other permanent differences | (1.60%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent | 0.80%us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent | 0.60%us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent |
| Release of unrecognized tax benefits | 0.00%mstr_EffectiveIncomeTaxRateReconciliationReleaseOfUnrecognizedTaxBenefits | (86.00%)mstr_EffectiveIncomeTaxRateReconciliationReleaseOfUnrecognizedTaxBenefits | (1.90%)mstr_EffectiveIncomeTaxRateReconciliationReleaseOfUnrecognizedTaxBenefits |
| Total | 54.40%us-gaap_EffectiveIncomeTaxRateContinuingOperations | (58.50%)us-gaap_EffectiveIncomeTaxRateContinuingOperations | 30.20%us-gaap_EffectiveIncomeTaxRateContinuingOperations |
| Non-deductible Officers Compensation | |||
| Schedule Of Effective Tax Rates Line Items | |||
| Other tax credits | 2.00%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther / mstr_IncomeTaxReconciliationAxis = mstr_NonDeductableOfficersCompensationMember |
7.10%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther / mstr_IncomeTaxReconciliationAxis = mstr_NonDeductableOfficersCompensationMember |
2.10%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther / mstr_IncomeTaxReconciliationAxis = mstr_NonDeductableOfficersCompensationMember |
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- Definition
Effective Income Tax Rate Reconciliation Adjustment To Deferred Tax And Rate Changes No definition available.
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the release of unrecognized tax benefits. No definition available.
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- Details
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- Definition
Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other deductions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to meals and entertainment expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments. No definition available.
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the repatriation of foreign earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign tax credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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