The aggregate repurchase price for all nonvested shares to any grantee subject to the Company's rights to repurchase

No definition available.

Name:	qihu_AggregateRepurchasePriceOfNonvestedSharesUnderRepurchaseArrangement
Namespace Prefix:	qihu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents ordinary shares in the equity incentive pool transferred from Young Vision to Sino Honor and Strengthen Goal

+ References

No definition available.

+ Details

Name:	qihu_OrdinarySharesInEquityPoolTransferredBetweenShareholders
Namespace Prefix:	qihu_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Under 2006 plan, all nonvested shares to any grantee shall be subject to the Company's rights to repurchase, if the grantee terminated his/her employment with the Group

+ References

No definition available.

+ Details

Name:	qihu_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedSharesGrantedRepurchaseArrangement
Namespace Prefix:	qihu_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares of stock issued during the period pursuant to acquisitions and as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited

+ References

No definition available.

+ Details

Name:	qihu_StockIssuedDuringPeriodSharesAcquisitionsAndShareBasedCompensationArrangement
Namespace Prefix:	qihu_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

+ 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)(1)

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

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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

- 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).

+ 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 (c)(2)(iii)(1)

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

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(c)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

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

- 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 Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: 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

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share-based Compensation (Narrative of Nonvested Shares) (Details) (CNY)	1 Months Ended		12 Months Ended			1 Months Ended	12 Months Ended	23 Months Ended	1 Months Ended
	Jan. 31, 2010 Young Vision [Member]	Jan. 31, 2006 Young Vision [Member]	Dec. 31, 2012 Nonvested shares [Member]	Dec. 31, 2011 Nonvested shares [Member]	Dec. 31, 2010 Nonvested shares [Member]	Jan. 31, 2010 Nonvested shares [Member] 2006 Share Plan [Member]	Dec. 31, 2012 Nonvested shares [Member] 2006 Share Plan [Member]	Jan. 01, 2008 Nonvested shares [Member] 2006 Share Plan [Member]	Feb. 28, 2011 Nonvested shares [Member] 2006 Share Plan [Member] Sino Honor Limited [Member]	Feb. 28, 2011 Nonvested shares [Member] 2006 Share Plan [Member] Strengthen Goal Limited [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Ordinary shares designated as equity pool		18,086,101
Nonvested shares granted			4,845,877	3,255,976	1,670,000			9,951,000
Nonvested shares, Shares, Issued During Period	3,517,544					3,517,544
Ordinary Shares In Equity Pool, Transferred between shareholders									11,826,000	5,550,654
Nonvested shares granted, Vesting Rights							The nonvested shares granted under the 2006 Share Plan shall vest (i) 15 per cent of the aggregate number of shares 12 months after the start of vesting period; (ii) 20 per cent of the aggregate number of shares 24 months after the start of vesting period; (iii) 30 per cent of the aggregate number of shares so granted 36 months after the start of vesting period; and (iv) 35 per cent of the aggregate number of Shares 48 months after the start of vesting period.
Nonvested shares granted, Repurchase Arrangement							(a) in all, on or before the second anniversary of the start of vesting period; (b) 50% of otherwise vested nonvested shares, after the second anniversary but before the fourth anniversary of the start of vesting period; or (c) no shares, after the fourth anniversary of the start of vesting period.
Aggregate repurchase price of nonvested shares under Repurchase Arrangement							1.00