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Discontinued Operations and Other Businesses Sold or to be Sold - Narrative (Details) € in Thousands, $ in Millions						3 Months Ended	9 Months Ended
	Oct. 26, 2023 USD ($)	Oct. 26, 2023 EUR (€)	Aug. 18, 2023 USD ($)	Jul. 26, 2023 USD ($)	Jun. 11, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Proceeds from sale of business							$ 291.9	$ 0.0
Assets disposed of by sales \| Roots Rotary Blowers Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Proceeds from sale of business			$ 291.9
Gain on sale before tax						$ 5.0	5.0
Assets disposed of by sales \| Roots Rotary Blowers Business \| Scenario, Plan
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Proceeds from sale of business					$ 300.0
Assets disposed of by sales \| American Fans \| Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Proceeds from sale of business	$ 111.0
Assets disposed of by sales \| Cryo Diffusion \| Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Proceeds from sale of business \| €		€ 4,250
Held for sale \| Comfico Fans
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Goodwill						22.5	22.5
Identifiable intangible assets						27.1	27.1
Other assets						$ 6.6	$ 6.6
Held for sale \| Comfico Fans \| Scenario, Plan
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Proceeds from sale of business				$ 80.0