XML 66 R78.htm IDEA: XBRL DOCUMENT
v3.20.1

Certain Risks and Concentration - PRC regulations (Details) | 12 Months Ended
--- | ---
Dec. 31, 2019
Risks And Uncertainties [Abstract] |
Total revenue derived from internet information services licenses | 88.90%

X
- Definition The percentage of revenue from internet information services. + References No definition available. + Details
Name: | feng_PercentageOfRevenueFromInternetInformationServices
Namespace Prefix: | feng_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RisksAndUncertaintiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration