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.

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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information
Amortization expense	$ 19.1	$ 17.4	$ 56.8	$ 52.1
Sealing Technologies
Segment Reporting Information
Accumulated impairment losses	27.8		27.8
Advanced Surface Technologies
Segment Reporting Information
Accumulated impairment losses	$ 126.0		$ 126.0