Goodwill and Other Intangible Assets, Net (Tables)

12 Months Ended

Jun. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Goodwill by Reportable Segment

The changes in the carrying amount of goodwill by reportable segment for fiscal years 2023 and 2022 were as follows:

	June 30,
($ in millions)	2021		2022		2023
Goodwill	$	376.0	$	376.0	$	376.0
Accumulated impairment losses	(134.6)		(134.6)		(134.6)
Total goodwill	$	241.4	$	241.4	$	241.4
Specialty Alloys Operations	$	195.5	$	195.5	$	195.5
Performance Engineered Products	45.9		45.9		45.9
Total goodwill	$	241.4	$	241.4	$	241.4

Schedule of Other Intangible Assets, Net

		June 30, 2023						June 30, 2022
($ in millions)	Useful Life (in Years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Trademarks and trade names	30	$	29.9	$	(26.3)	$	3.6	$	29.9	$	(25.3)	$	4.6
Customer relationships	15	70.8		(53.5)		17.3		70.8		(48.8)		22.0
Technology	11	3.6		(3.5)		0.1		3.6		(3.1)		0.5
Patents	15	11.4		(3.7)		7.7		11.4		(3.3)		8.1
Total other intangibles		$	115.7	$	(87.0)	$	28.7	$	115.7	$	(80.5)	$	35.2