Goodwill and Other Intangible Assets - Carrying Amount of Goodwill Attributable to Each Segment (Details) - USD ($) $ in Thousands	9 Months Ended
Mar. 31, 2023	Jun. 30, 2022
Goodwill [Roll Forward]
Gross goodwill	$ 1,079,656	$ 1,075,102
Accumulated impairment losses	(810,872)	(810,872)
Goodwill, Beginning Balance	264,230
Change in gross goodwill due to translation	4,554
Goodwill, Ending Balance	268,784
Infrastructure [Member]
Goodwill [Roll Forward]
Gross goodwill	633,211	633,211
Accumulated impairment losses	(633,211)	(633,211)
Goodwill, Beginning Balance	0
Change in gross goodwill due to translation	0
Goodwill, Ending Balance	0
Metal Cutting
Goodwill [Roll Forward]
Gross goodwill	446,445	441,891
Accumulated impairment losses	(177,661)	$ (177,661)
Goodwill, Beginning Balance	264,230
Change in gross goodwill due to translation	4,554
Goodwill, Ending Balance	$ 268,784

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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