Principal Accounting Policies - Employee social security and welfare benefits (Details) - CNY (¥) ¥ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Employee social security and welfare benefits
Employee social security and welfare benefits	¥ 95.3	¥ 54.4	¥ 104.3

The amount of employee social security and welfare benefits included as cost and expenses in the accompanying consolidated statements of comprehensive income.

No definition available.

Name:	feng_EmployeeSocialSecurityAndWelfareBenefits
Namespace Prefix:	feng_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration