Commitments and Contingencies (Details) - USD ($)	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract]
Legal settlement	$ (3,900,000)	$ 6,300,000
SKU rationalization charges		1,700,000
Loss Contingencies [Line Items]
Gain (Loss) from Litigation Settlement	3,900,000	(6,300,000)
Other Commitments [Line Items]
Gain (Loss) from Litigation Settlement	3,900,000	(6,300,000)
AccruedEnvironmentalLiability	7,900,000		$ 7,700,000
Gain Contingencies [Line Items]
Gain (Loss) from Litigation Settlement	3,900,000	$ (6,300,000)
VAT matter
Commitments and Contingencies Disclosure [Abstract]
Legal settlement	(2,200,000)
Loss Contingencies [Line Items]
Gain (Loss) from Litigation Settlement	2,200,000
Other Commitments [Line Items]
Gain (Loss) from Litigation Settlement	2,200,000
Gain Contingencies [Line Items]
Gain (Loss) from Litigation Settlement	2,200,000
intellectual property claim against a third party
Commitments and Contingencies Disclosure [Abstract]
Legal settlement	(4,900,000)
Loss Contingencies [Line Items]
Gain (Loss) from Litigation Settlement	4,900,000
Other Commitments [Line Items]
Gain (Loss) from Litigation Settlement	4,900,000
Gain Contingencies [Line Items]
Gain (Loss) from Litigation Settlement	$ 4,900,000