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LOANS - Unsecured loans (Details) ¥ in Thousands, $ in Thousands			12 Months Ended
	Dec. 31, 2023 CNY (¥)	Dec. 04, 2023 CNY (¥)	Dec. 31, 2023 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CNY (¥)	Dec. 31, 2021 CNY (¥)
LOANS
Proceeds from loans due to related parties			¥ 900,000	$ 126,763	¥ 300,000	¥ 1,192,455
Fixed annual interest rate	4.10%		4.10%	4.10%
Kingsoft Group
LOANS
Fixed annual interest rate	3.75%		3.75%	3.75%
Kingsoft Group | Loan Facility
LOANS
Maximum borrowing capacity		¥ 1,500,000,000,000
Kingsoft Group | Unsecured Loan Facility of 5,00,000 [Member]
LOANS
Maximum borrowing capacity		¥ 500,000
Debt Instrument, Term		10 months
Proceeds from Lines of Credit	¥ 500,000,000,000
Kingsoft Group | Unsecured Loan Facility of 5,00,000 [Member] | Maximum
LOANS
Debt Instrument, Term		18 months

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
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- Definition

The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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