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PREPAID EXPENSES AND OTHER CURRENT ASSETS, NET - Schedule of prepaid expenses and other current assets (Parenthetical) (Details) ¥ in Thousands, $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2020 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 CNY (¥)
Wuhang Yungteng Logistics Company Limited [Member] |  |  |
Disposal group including discontinued operation consideration | ¥ 26,676 |  |
Gain loss on disposal of business | ¥ 1,000 |  |
Disposal Of Business Balance Consideration Yet To Be Received |  |  | ¥ 16,713
Minimum [Member] |  |  |
Finance receivable interest percentage |  | 4 |
Maximum [Member] |  |  |
Finance receivable interest percentage |  | 12 |
Finance Receivable One [Member] |  |  |
Finance receivable principal amount |  | $ 15.3 | 97,548
Finance Receivable Two [Member] |  |  |
Finance receivable principal amount |  | 4.7 | 29,966
Finance Receivable Three [Member] |  |  |
Finance receivable principal amount |  |  | 800
Finance Receivable Four [Member] |  |  |
Finance receivable principal amount |  |  | 12,000
Finance Receivable Five [Member] |  |  |
Finance receivable principal amount |  |  | 10,000
Finance Receivable Six [Member] |  |  |
Finance receivable principal amount |  |  | 30,000
Finance Receivable Seven [Member] |  |  |
Finance receivable principal amount |  |  | 40,000
Finance Receivable One Two And Three [Member] |  |  |
Finance receivable principal amount |  | $ 20.0 | ¥ 130,498

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