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Goodwill and Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
Finite-Lived Intangible Assets, Accumulated Amortization |  |  | $ 153,972 | $ 137,386 |
Intangible Assets, Gross (Excluding Goodwill) |  |  | 274,013 | 269,954 |
Goodwill and other Intangible Asset Impairment | $ 15,600 | $ 14,600 |  | 30,227 |
Goodwill, Impairment Loss |  |  |  | 26,819 |
Goodwill |  |  | 277,615 | 270,580 | $ 300,011
WIDIA [Member] |  |  |  |  |
Goodwill, Impairment Loss | 13,700 | 13,100 |  |  |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | $ 1,900 | $ 1,500 |  |  |
Metal Cutting [Member] |  |  |  |  |
Goodwill, Impairment Loss |  |  |  | (26,819) |
Goodwill |  |  | 277,615 | 270,580 | $ 300,011
Technology-Based and other [Member] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  | 33,632 | 32,713 |
Finite-Lived Intangible Assets, Accumulated Amortization |  |  | $ 24,413 | 22,612 |
Technology-Based and other [Member] | Minimum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 4 years |  |
Technology-Based and other [Member] | Maximum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 20 years |  |
Customer Relationships [Member] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  | $ 183,338 | 181,408 |
Finite-Lived Intangible Assets, Accumulated Amortization |  |  | $ 98,901 | 88,112 |
Customer Relationships [Member] | Minimum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 10 years |  |
Customer Relationships [Member] | Maximum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 21 years |  |
Unpatented Technology [Member] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  | $ 31,957 | 31,586 |
Finite-Lived Intangible Assets, Accumulated Amortization |  |  | $ 20,575 | 17,890 |
Unpatented Technology [Member] | Minimum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 10 years |  |
Unpatented Technology [Member] | Maximum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 30 years |  |
Trademarks [Member] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  | $ 13,268 | 13,087 |
Finite-Lived Intangible Assets, Accumulated Amortization |  |  | $ 10,083 | 8,772 |
Trademarks [Member] | Minimum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 5 years |  |
Trademarks [Member] | Maximum [Member] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 20 years |  |
Trademarks [Member] |  |  |  |  |
Indefinite-lived Intangible Assets (Excluding Goodwill) |  |  | $ 11,818 | $ 11,160 |

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