Goodwill and Other Intangible Assets Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Goodwill [Line Items]
Goodwill, Gross	$ 1,082,439	$ 1,080,423	$ 1,075,102
Goodwill, Accumulated Impairment Loss	(810,872)	(810,872)	(810,872)
Goodwill	271,567	269,551	264,230
Business Combination, Price of Acquisition, Expected	3,800
Goodwill, Foreign Currency Translation Gain (Loss)	(1,784)
Goodwill, Period Increase (Decrease)		5,321
Metal Cutting [Member]
Goodwill [Line Items]
Goodwill, Gross	449,228	447,212	441,891
Goodwill, Accumulated Impairment Loss	177,661	177,661	177,661
Goodwill	271,567	269,551	264,230
Business Combination, Price of Acquisition, Expected	3,800
Goodwill, Foreign Currency Translation Gain (Loss)	(1,784)
Goodwill, Period Increase (Decrease)		5,321
Infrastructure [Member]
Goodwill [Line Items]
Goodwill, Gross	633,211	633,211	633,211
Goodwill, Accumulated Impairment Loss	633,211	633,211	633,211
Goodwill	$ 0	0	$ 0
Goodwill, Period Increase (Decrease)		$ 0