Derivatives and Hedging Activities (Tables)

12 Months Ended

Jun. 30, 2025

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Fair Value and Location of Outstanding Derivative Contracts Recorded in Consolidated Balance Sheets

The fair value and location of outstanding derivative contracts recorded in the accompanying consolidated balance sheets were as follows as of June 30, 2025 and 2024:

June 30, 2025 ($ in millions)	Foreign Currency Contracts		Commodity Contracts		Total Derivatives
Asset Derivatives:
Other current assets	$	0.4	$	—	$	0.4
Other assets	0.1		0.1		0.2
Total asset derivatives	$	0.5	$	0.1	$	0.6
Liability Derivatives:
Accrued liabilities	$	—	$	2.2	$	2.2
Other liabilities	—		—		—
Total liability derivatives	$	—	$	2.2	$	2.2

June 30, 2024 ($ in millions)	Foreign Currency Contracts		Commodity Contracts		Total Derivatives
Asset Derivatives:
Other current assets	$	—	$	—	$	—
Other assets	—		—		—
Total asset derivatives	$	—	$	—	$	—
Liability Derivatives:
Accrued liabilities	$	—	$	3.6	$	3.6
Other liabilities	1.4		0.8		2.2
Total liability derivatives	$	1.4	$	4.4	$	5.8

Summary of the Gains (Losses) Related to Cash Flow Hedges

The following is a summary of the (losses) gains related to cash flow hedges recognized during the fiscal years ended June 30, 2025, 2024 and 2023:

	Amount of (Loss) Gain Recognized in AOCI on Derivatives  Years Ended June 30,
($ in millions)	2025		2024		2023
Derivatives in Cash Flow Hedging Relationship:
Commodity contracts	$	(2.3)	$	(9.6)	$	(8.8)
Foreign exchange contracts	0.3		—		—
Total	$	(2.0)	$	(9.6)	$	(8.8)

		Amount of (Loss) Gain Reclassified from AOCI into Income  Years Ended June 30,
($ in millions)	Location of (Loss) Gain   Reclassified from AOCI  into Income	2025		2024		2023
Derivatives in Cash Flow Hedging Relationship:
Commodity contracts	Cost of sales	$	(4.2)	$	(11.0)	$	7.7
Total		$	(4.2)	$	(11.0)	$	7.7

The following is a summary of total amounts presented in the consolidated statements of operations in which the effects of cash flow hedges are recorded during the fiscal years ended June 30, 2025 and 2024:

	Year Ended June 30, 2025		Year Ended June 30, 2024
($ in millions)	Cost of Sales		Cost of Sales
Total amounts presented in the consolidated statements of operations in which the effects of cash flow hedges are recorded	$	2,108.5	$	2,175.4
Loss on Derivatives in Cash Flow Hedging Relationship:
Commodity contracts
Amount of loss reclassified from AOCI to income	(4.2)		(11.0)
Total loss	$	(4.2)	$	(11.0)

Schedule of Changes in AOCI Associated with Derivative Hedging Activities

The changes in AOCI associated with derivative hedging activities during the fiscal years ended June 30, 2025, 2024 and 2023 were as follows:

	Years Ended June 30,
($ in millions) (a)	2025		2024		2023
Balance, beginning	$	(5.9)	$	(7.0)	$	5.5
Current period changes in fair value, net of tax	(1.5)		(7.3)		(6.7)
Reclassification to earnings, net of tax	3.2		8.4		(5.8)
Balance, ending	$	(4.2)	$	(5.9)	$	(7.0)

(a)    All amounts are net of tax. Amounts in parentheses indicate debits.