Aggregate undistributed earnings available for distribution to parent company

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- Definition

Income Taxes Preferential Tax Rate

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- Definition

Income Taxes Reduction Percentage

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- Definition

Income tax exemption period for software enterprise entitled to the preferential tax treatment according to PRC government authorities.

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- Definition

The number of years during which the Company enjoys 50% interest rate.

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- Definition

Surcharge percentage of income tax

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- Definition

Income tax rate approved by the local tax authority to file its income tax by adopting the "deemed-profit method".

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- Definition

Positive Impact of Tax Holidays on Basic Net Income Per Ordinary Share

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- Definition

Preferential rate that is used to calculate the money taken out of remittance of dividends as tax

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No definition available.

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Withholding taxes rate on remittance of dividends

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

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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).

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Amount 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 income exempt from income tax because of a tax holiday.

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

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Income Taxes (Narrative) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Corporate Income Tax Rate [Line Items]
Income tax expense increased without tax holidays	$ 58,529	$ 43,460	$ 17,844
Positive impact of tax holidays on basic net income per ordinary share	$ 0.32	$ 0.24	$ 0.10
Hong Kong [Member] \| Subsidiaries [Member]
Corporate Income Tax Rate [Line Items]
Unified income tax rate	16.50%	16.50%	16.50%
Singapore [Member] \| Subsidiaries [Member]
Corporate Income Tax Rate [Line Items]
Unified income tax rate	17.00%	17.00%
Japan [Member] \| Subsidiaries [Member]
Corporate Income Tax Rate [Line Items]
Unified income tax rate	25.50%	25.50%
Income tax, percentage of surcharge	2.55%	2.55%
Withholding taxes rate on remittance of dividends	20.42%
Preferential withholding taxes rate on remittance of dividends	10.00%
United States of America ("USA") [Member] \| Subsidiaries [Member]
Corporate Income Tax Rate [Line Items]
Withholding taxes rate on remittance of dividends	30.00%
United States of America ("USA") [Member] \| Subsidiaries [Member] \| Minimum [Member]
Corporate Income Tax Rate [Line Items]
Unified income tax rate	15.00%	15.00%
United States of America ("USA") [Member] \| Subsidiaries [Member] \| Maximum [Member]
Corporate Income Tax Rate [Line Items]
Unified income tax rate	39.00%	39.00%
Delaware [Member] \| Subsidiaries [Member]
Corporate Income Tax Rate [Line Items]
State income tax rate in Delaware	8.70%	8.70%
PRC [Member]
Corporate Income Tax Rate [Line Items]
Unified income tax rate	25.00%	25.00%	25.00%
Income tax rate under deemed-profit method	2.50%
PRC [Member] \| HNTE [Member]
Corporate Income Tax Rate [Line Items]
Preferential tax rate	15.00%
PRC [Member] \| Software Enterprise [Member]
Corporate Income Tax Rate [Line Items]
Preferential tax rate	12.50%
Income tax holiday, exemption period as Software Enterprise	2 years
Income taxes reduction percentage	50.00%
Income tax holiday, half rate period as Software Enterprise	3 years
PRC [Member] \| Subsidiaries [Member] \| Pro Forma [Member]
Corporate Income Tax Rate [Line Items]
Withholding taxes rate on remittance of dividends	10.00%
PRC [Member] \| Qizhi Software [Member] \| HNTE [Member]
Corporate Income Tax Rate [Line Items]
Preferential tax rate	15.00%	15.00%	15.00%
PRC [Member] \| Beijing Qihu [Member] \| HNTE [Member]
Corporate Income Tax Rate [Line Items]
Preferential tax rate	15.00%	15.00%	15.00%
PRC [Member] \| Beijing Star World [Member] \| HNTE [Member]
Corporate Income Tax Rate [Line Items]
Preferential tax rate	15.00%	15.00%	15.00%
PRC [Member] \| Tianjin Qisi [Member] \| Software Enterprise [Member]
Corporate Income Tax Rate [Line Items]
Preferential tax rate	12.50%
Income tax holiday, exemption period as Software Enterprise		2 years	2 years
PRC [Member] \| Qifei Xiangyi [Member] \| Software Enterprise [Member]
Corporate Income Tax Rate [Line Items]
Income tax holiday, exemption period as Software Enterprise	2 years	2 years
PRC [Member] \| Other VIEs and VIEs' subsidiaries [Member]
Corporate Income Tax Rate [Line Items]
Unified income tax rate	25.00%
PRC [Member] \| The Company and its subsidiaries, VIEs and VIEs' subsidiaries registered outside the PRC [Member] \| Pro Forma [Member]
Corporate Income Tax Rate [Line Items]
Unified income tax rate	25.00%
PRC [Member] \| Subsidiaries and VIEs [Member]
Corporate Income Tax Rate [Line Items]
Aggregate undistributed earnings available for distribution to the Company	651,006
Total net operating loss carry forwards	$ 50,874