Goodwill and Other Intangible Assets, Net (Tables)

12 Months Ended

Jun. 30, 2021

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 2021 and 2020 were as follows:

($ in millions)	June 30, 2019		Impairment		Other		June 30, 2020		Impairment		Other		June 30, 2021
Goodwill	$	373.6	$	—	$	(1.4)	$	372.2	$	—	$	3.8	$	376.0
Accumulated impairment losses	(47.2)		(34.6)		—		(81.8)		(52.8)		—		(134.6)
Total goodwill	$	326.4	$	(34.6)	$	(1.4)	$	290.4	$	(52.8)	$	3.8	$	241.4
Specialty Alloys Operations	$	195.5	$	—	$	—	$	195.5	$	—	$	—	$	195.5
Performance Engineered Products	130.9		(34.6)		(1.4)		94.9		(52.8)		3.8		45.9
Total goodwill	$	326.4	$	(34.6)	$	(1.4)	$	290.4	$	(52.8)	$	3.8	$	241.4

Schedule of other intangible assets, net

		June 30, 2021						June 30, 2020
($ in millions)	Useful Life (in Years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Impairment		Net Carrying Amount
Trademarks and trade names	15 - 30	$	29.9	$	(24.3)	$	5.6	$	33.5	$	(25.4)	$	(1.5)	$	6.6
Customer relationships	10 - 15	70.8		(44.1)		26.7		76.9		(41.2)		(1.2)		34.5
Non-compete agreements	5	—		—		—		0.2		(0.1)		(0.1)		—
Technology	10 - 15	3.6		(2.8)		0.8		7.3		(1.5)		(4.5)		1.3
Patents	14 - 20	11.4		(1.4)		10.0		11.4		(1.7)		—		9.7
Total		$	115.7	$	(72.6)	$	43.1	$	129.3	$	(69.9)	$	(7.3)	$	52.1