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.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-14

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DEBT AND BORROWING ARRANGEMENTS - Schedule of Credit Lines Available (Details) - Revolving Credit Facility - Line of Credit - USD ($) $ in Millions		1 Months Ended	6 Months Ended	12 Months Ended
	May 26, 2023	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Atmus Credit Agreement
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					$ 1,000.0
Proceeds from debt borrowings	$ 650.0
Atmus Term Loan Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 600.0	$ 600.0	$ 0.0	600.0
Proceeds from debt borrowings		600.0	600.0	0.0
Atmus Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		400.0	400.0	0.0	$ 400.0
Proceeds from debt borrowings		$ 50.0	$ 50.0	$ 0.0