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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fulfilment costs (Details) - CNY (¥) ¥ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Other non-current assets |  |
Capitalized fulfilment cost | ¥ 128,983 | ¥ 0

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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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- Details
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