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Goodwill and Other Intangible Assets - Carrying Amount of Goodwill Attributable to Each Segment (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Jun. 30, 2023
Goodwill [Roll Forward] |  |
Gross goodwill | $ 1,086,788 | $ 1,080,423
Accumulated impairment losses | (810,872) | (810,872)
Goodwill, Beginning Balance | 269,551 |
Change in gross goodwill due to translation | 2,726 |
Goodwill, Ending Balance | 275,916 |
Business Combination, Price of Acquisition, Expected | 3,639 |
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 |
Business Combination, Price of Acquisition, Expected | 0 |
Metal Cutting |  |
Goodwill [Roll Forward] |  |
Gross goodwill | 453,577 | 447,212
Accumulated impairment losses | (177,661) | $ (177,661)
Goodwill, Beginning Balance | 269,551 |
Change in gross goodwill due to translation | 2,726 |
Goodwill, Ending Balance | 275,916 |
Business Combination, Price of Acquisition, Expected | $ 3,639 |

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