Derivatives and Hedging Activities - Summary of the Gains (Losses) Related to Cash Flow Hedges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives	$ 2.4	$ (1.2)	$ 0.1	$ (9.3)
Amount of Loss Reclassified from AOCI into Income	(0.7)	(4.2)	(3.9)	(7.4)
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives	2.4	(1.2)	0.1	(9.3)
Commodity contracts | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Reclassified from AOCI into Income	$ (0.7)	$ (4.2)	$ (3.9)	$ (7.4)