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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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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

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- Definition

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684

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