Commitments and Contingencies (Loss Contingencies) (Details)	1 Months Ended
Sep. 30, 2011 Unfair competitive practices claim [Member] Tencent [Member] USD ($)	Sep. 30, 2011 Unfair competitive practices claim [Member] Tencent [Member] CNY	Jun. 30, 2011 Unfair competitive practices claim [Member] Tencent [Member] USD ($)	Jun. 30, 2011 Unfair competitive practices claim [Member] Tencent [Member] CNY	Oct. 31, 2010 Unfair competitive practices claim [Member] Tencent [Member] CNY	Oct. 31, 2012 Unfair competitive practices and copyright infringement claim [Member] Two affiliates of Baidu [Member] CNY	Apr. 30, 2012 Unfair competitive practices and copyright infringement claim [Member] Two affiliates of Baidu [Member] CNY
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value			$ 19,800,000	125,000,000	4,000,000	100,000,000	10,000,000
Loss Contingency, Damages Awarded, Value	$ 63,553	400,000

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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