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Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill [Table Text Block] | A summary of the carrying amount of goodwill attributable to each segment, as well as the changes in such, is as follows:
(in thousands) | Industrial |  | Widia |  | Infrastructure |  | Total
Gross goodwill | $ | 411,458 |  |  | $ | 41,186 |  |  | $ | 633,211 |  |  | $ | 1,085,855 |
Accumulated impairment losses | (137,204 | ) |  | (13,638 | ) |  | (633,211 | ) |  | (784,053 | )
Balance as of June 30, 2018 | $ | 274,254 |  |  | $ | 27,548 |  |  | $ | — |  |  | $ | 301,802 |
Activity for 2019: |  |  |  |  |  |  |
Change in gross goodwill due to translation | (1,546 | ) |  | (245 | ) |  | — |  |  | (1,791 | )
Gross goodwill | 409,912 |  |  | 40,941 |  |  | 633,211 |  |  | 1,084,064 |
Accumulated impairment losses | (137,204 | ) |  | (13,638 | ) |  | (633,211 | ) |  | (784,053 | )
Balance as of June 30, 2019 | $ | 272,708 |  |  | $ | 27,303 |  |  | $ | — |  |  | $ | 300,011 |
Activity for 2020: |  |  |  |  |  |  |
Change in gross goodwill due to translation | (2,128 | ) |  | (484 | ) |  | — |  |  | (2,612 | )
Impairment charges | — |  |  | (26,819 | ) |  | — |  |  | (26,819 | )
Gross goodwill | 407,784 |  |  | 40,457 |  |  | 633,211 |  |  | 1,081,452 |
Accumulated impairment losses | (137,204 | ) |  | (40,457 | ) |  | (633,211 | ) |  | (810,872 | )
Balance as of June 30, 2020 | $ | 270,580 |  |  | $ | — |  |  | $ | — |  |  | $ | 270,580 |
Components of Other Intangible Assets [Table Text Block] | The components of our other intangible assets were as follows:
| Estimated Useful Life (in years) |  | June 30, 2020 |  |  | June 30, 2019
(in thousands) |  | Gross Carrying Amount |  | Accumulated Amortization |  |  | Gross Carrying Amount |  | Accumulated Amortization
Contract-based | 3 to 15 |  | $ | — |  |  | $ | — |  |  |  | $ | 7,062 |  |  | $ | (7,062 | )
Technology-based and other | 4 to 20 |  | 32,713 |  |  | (22,612 | ) |  |  | 46,228 |  |  | (31,890 | )
Customer-related | 10 to 21 |  | 181,408 |  |  | (88,112 | ) |  |  | 205,213 |  |  | (94,711 | )
Unpatented technology | 10 to 30 |  | 31,586 |  |  | (17,890 | ) |  |  | 31,702 |  |  | (15,492 | )
Trademarks | 5 to 20 |  | 13,087 |  |  | (8,772 | ) |  |  | 14,755 |  |  | (9,352 | )
Trademarks | Indefinite |  | 11,160 |  |  | — |  |  |  | 14,545 |  |  | — |
Total |  |  | $ | 269,954 |  |  | $ | (137,386 | ) |  |  | $ | 319,505 |  |  | $ | (158,507 | )

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267 + Details
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