Principal Accounting Policies (Statutory reserves) (Details) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012 USD ($)	Dec. 31, 2012 CNY	Dec. 31, 2011 CNY	Dec. 31, 2010 CNY	Dec. 31, 2012 Wholly foreign-owned enterprise [Member]	Dec. 31, 2012 Domestically funded enterprises [Member]
Schedule of Statutory Reserves [Line Items]
Portion of after-tax profit to be allocated to general reserve under PRC law (as a percent)					10.00%	10.00%
Required general reserve/registered capital ratio to de-force compulsory net profit allocation to general reserve (as a percent)					50.00%	50.00%
Appropriations to statutory reserves	$ 1.2	7.3	14.3	4.0

Appropriations to statutory reserve. In accordance with the PRC laws, the company's subsidiary, VIEs and VIEs' subsidiary incorporated in PRC are required to make appropriations to certain non-distributable reserve from their after-tax profit (as determined under the Accounting Standards for Business Enterprises as promulgated by the Ministry of Finance of the People's Republic of China ("PRC GAAP")).

No definition available.

Name:	feng_AppropriationsToStatutoryReserves
Namespace Prefix:	feng_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration