Schedule of Accumulated Other Comprehensive Income (Loss) (Details) $ in Millions	3 Months Ended
	Dec. 31, 2022 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at September 30, 2022	$ (145.3)
OCI before reclassifications	(20.9)
Reclassifications to earnings	(8.7)
Balance at December 31, 2022	(174.9)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at September 30, 2022	(77.7)
OCI before reclassifications	(18.6)
Reclassifications to earnings	0.0
Balance at December 31, 2022	(96.3)
Pension Activity
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at September 30, 2022	(140.5)
OCI before reclassifications	1.8
Reclassifications to earnings	0.6
Balance at December 31, 2022	(138.1)
Foreign Currency Contracts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at September 30, 2022	11.7
OCI before reclassifications	(6.7)
Reclassifications to earnings	(4.8)
Balance at December 31, 2022	0.2
Zinc contracts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at September 30, 2022	(4.6)
OCI before reclassifications	2.6
Reclassifications to earnings	(0.8)
Balance at December 31, 2022	(2.8)
Interest Rate Contracts | Foreign Currency Contracts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at September 30, 2022	65.8
OCI before reclassifications	0.0
Reclassifications to earnings	(3.7)
Balance at December 31, 2022	$ 62.1