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TAXATION - Reconciliation of the beginning and ending amount of unrecognized tax benefits excluding the penalty and interest (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CNY (¥)
TAXATION
Balance at the beginning of year	¥ 81,901	$ 11,875	¥ 65,093
Changes based on tax positions related to the current year	322	47	19,766
Additions related to prior year tax position	1,072	155	8,692
Decreases related to prior year tax position	(6,617)	(959)	(7,580)
Decrease related to disposal of CMSI	(7,861)	(1,140)
Decreases relating to expiration of applicable statute of limitation	(3,572)	(518)	(3,322)
Foreign currency translation	1,927	279	(748)
Balance at the end of year	¥ 67,172	$ 9,739	¥ 81,901

X

- Definition

Amount of increase 9decrease) in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

No definition available.

+ Details

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X

- Definition

Amount of decrease in unrecognized tax benefits resulting from disposal of group.

+ References

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- Definition

Amount of increase (decrease) in unrecognized tax benefits resulting from foreign currency translation.

+ References

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 10B
-URI https://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319

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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)(4)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319

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