CONCENTRATION OF CREDIT RISK - Revenues (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2022 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)
CONCENTRATION OF CREDIT RISK
Net Revenues	¥ 9,367,595	$ 1,358,174	¥ 6,866,262	¥ 5,739,989
Customer A \| Revenues
CONCENTRATION OF CREDIT RISK
Net Revenues	2,027,548		1,387,685	794,685
Customer B \| Revenues
CONCENTRATION OF CREDIT RISK
Net Revenues	¥ 1,900,540		¥ 951,328	¥ 2,214,262

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details