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Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2020
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |
Other Intangible Assets, Written off Related to Sale of Business Unit |  | $ 12,500 |
The components of intangible assets |  |  |
Accumulated amortization | $ (147,297) |  | $ (137,386)
Intangible Assets, Gross (Excluding Goodwill) | 274,958 |  | 269,954
Trademarks [Member] |  |  |
The components of intangible assets |  |  |
Gross carrying amount, Indefinite | 12,215 |  | 11,160
Technology-based and other [Member] |  |  |
The components of intangible assets |  |  |
Gross carrying amount, finite | 33,881 |  | 32,713
Accumulated amortization | (24,235) |  | (22,612)
Customer-related [Member] |  |  |
The components of intangible assets |  |  |
Gross carrying amount, finite | 183,624 |  | 181,408
Accumulated amortization | (94,174) |  | (88,112)
Unpatented technology [Member] |  |  |
The components of intangible assets |  |  |
Gross carrying amount, finite | 31,906 |  | 31,586
Accumulated amortization | (19,305) |  | (17,890)
Trademarks [Member] |  |  |
The components of intangible assets |  |  |
Gross carrying amount, finite | 13,332 |  | 13,087
Accumulated amortization | $ (9,583) |  | $ (8,772)
Minimum [Member] | Technology-based and other [Member] |  |  |
The components of intangible assets |  |  |
Useful life related to technology-based intangible assets | 4 years |  |
Minimum [Member] | Customer-related [Member] |  |  |
The components of intangible assets |  |  |
Useful life related to technology-based intangible assets | 10 years |  |
Minimum [Member] | Unpatented technology [Member] |  |  |
The components of intangible assets |  |  |
Useful life related to technology-based intangible assets | 10 years |  |
Minimum [Member] | Trademarks [Member] |  |  |
The components of intangible assets |  |  |
Useful life related to technology-based intangible assets | 5 years |  |
Maximum [Member] | Technology-based and other [Member] |  |  |
The components of intangible assets |  |  |
Useful life related to technology-based intangible assets | 20 years |  |
Maximum [Member] | Customer-related [Member] |  |  |
The components of intangible assets |  |  |
Useful life related to technology-based intangible assets | 21 years |  |
Maximum [Member] | Unpatented technology [Member] |  |  |
The components of intangible assets |  |  |
Useful life related to technology-based intangible assets | 30 years |  |
Maximum [Member] | Trademarks [Member] |  |  |
The components of intangible assets |  |  |
Useful life related to technology-based intangible assets | 20 years |  |
WIDIA [Member] |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) |  | $ 1,500 |

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