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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, 2019 | Jun. 30, 2019
Goodwill [Line Items] |  |
Goodwill and Intangible Asset Impairment | $ 14,600 |
Document Period End Date | Dec. 31, 2019 |
Goodwill [Roll Forward] |  |
Gross goodwill | $ 1,083,013 | $ 1,084,064
Accumulated impairment losses | (797,187) | (784,053)
Goodwill, Beginning Balance | 300,011 |
Change in gross goodwill due to translation | (1,051) |
Impairment charges | (13,134) |
Goodwill, Ending Balance | 285,826 |
Industrial [Member] |  |
Goodwill [Roll Forward] |  |
Gross goodwill | 409,063 | 409,912
Accumulated impairment losses | (137,204) | (137,204)
Goodwill, Beginning Balance | 272,708 |
Change in gross goodwill due to translation | (849) |
Impairment charges | 0 |
Goodwill, Ending Balance | 271,859 |
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 |
Impairment charges | 0 |
Goodwill, Ending Balance | 0 |
WIDIA [Member] |  |
Goodwill [Roll Forward] |  |
Gross goodwill | 40,739 | 40,941
Accumulated impairment losses | (26,772) | $ (13,638)
Goodwill, Beginning Balance | 27,303 |
Change in gross goodwill due to translation | (202) |
Impairment charges | 13,134 |
Goodwill, Ending Balance | $ 13,967 |

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