XML 27 R31.htm IDEA: XBRL DOCUMENT v3.3.0.814

Changes in Fair Value of Foreign Currency Forward Contracts (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instruments			$ (1,641)	$ 926
Unrealized (loss) gain on foreign currency forward contracts | Other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instruments	$ 0	$ 1,012	(1,641)	926
Realized loss on foreign currency forward contracts | Other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instruments	$ 0	$ 0	$ 2,129	$ (562)

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeInstrumentsGainLossLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 815



-SubTopic 10



-Section 50



-Paragraph 4C



-Subparagraph (e)



-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 815



-SubTopic 10



-Section 50



-Paragraph 4A



-Subparagraph (b)



-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959

+ Details

Name:	us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	mstr_DerivativeInstrumentsGainLossByNatureAxis=mstr_UnrealizedGainLossOnDerivativesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=mstr_OtherIncomeExpenseNetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	mstr_DerivativeInstrumentsGainLossByNatureAxis=mstr_RealizedGainLossOnDerivativesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: