{"cik":1921963,"taxonomy":"us-gaap","tag":"AmortizationOfIntangibleAssets","label":"Amortization of Intangible Assets","description":"The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.","entityName":"Atmus Filtration Technologies Inc.","units":{"USD":[{"start":"2025-01-01","end":"2025-03-31","val":0,"accn":"0001921963-26-000042","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-01","frame":"CY2025Q1"},{"start":"2026-01-01","end":"2026-03-31","val":2900000,"accn":"0001921963-26-000042","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-01","frame":"CY2026Q1"}]}}