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Restructuring and Asset Impairment Charges - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring and asset impairment charges	$ 3.6		$ 0.0
Restructuring charges excluding noncash impairments	1.1	$ 1.1		$ 1.1
Restructuring reserve	1.9	$ 1.1		$ 1.1	$ 0.0
Business Exit, Oil And Gas \| Performance Engineered Products
Restructuring Cost and Reserve [Line Items]
Tangible asset impairment charges	$ 2.5