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PRINCIPAL ACCOUNTING POLICIES - Schedule of estimated useful lives (Details) | 12 Months Ended
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Dec. 31, 2021
Leasehold improvement |
Property, Plant and Equipment, Estimated Useful Lives | Shorter of the term of the lease or the estimated useful lives of the assets
Electronic equipment |
Property, Plant and Equipment, Estimated Useful Lives | 3 years
Furniture |
Property, Plant and Equipment, Estimated Useful Lives | 3 years
Software |
Property, Plant and Equipment, Estimated Useful Lives | 3 years
Vehicles |
Property, Plant and Equipment, Estimated Useful Lives | 3 years

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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123364984&loc=d3e1205-110223 + Details
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- Details
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- Details
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- Details
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