Goodwill and Other Intangible Assets - Carrying Amount of Goodwill Attributable to Each Segment (Details) $ in Thousands	6 Months Ended
	Dec. 31, 2025 USD ($)
Goodwill [Roll Forward]
Gross goodwill, beginning balance	$ 1,093,598
Accumulated impairment losses, beginning balance	(810,872)
Goodwill, beginning balance	282,726
Change in gross goodwill due to translation	247
Gross goodwill, ending balance	1,093,845
Accumulated impairment losses, ending balance	(810,872)
Goodwill, ending balance	282,973
Metal Cutting
Goodwill [Roll Forward]
Gross goodwill, beginning balance	460,387
Accumulated impairment losses, beginning balance	(177,661)
Goodwill, beginning balance	282,726
Change in gross goodwill due to translation	247
Gross goodwill, ending balance	460,634
Accumulated impairment losses, ending balance	(177,661)
Goodwill, ending balance	282,973
Infrastructure
Goodwill [Roll Forward]
Gross goodwill, beginning balance	633,211
Accumulated impairment losses, beginning balance	(633,211)
Goodwill, beginning balance	0
Change in gross goodwill due to translation	0
Gross goodwill, ending balance	633,211
Accumulated impairment losses, ending balance	(633,211)
Goodwill, ending balance	$ 0