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Goodwill Schedule of Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2015
Goodwill [Line Items] |  |  |  |
Goodwill, Beginning Balance |  |  | $ 292.1 |
Impairment Losses |  |  | 0.0 |
Other |  |  | (0.1) |
Goodwill, Ending Balance | $ 292.0 |  | 292.0 |
Accumulated impairment losses, Beginning Balance |  |  | (34.7) |
Accumulated impairment losses, Changes in Impairment Losses |  |  | (12.5) |
Accumulated impairment losses, Other Changes |  |  | 0.0 |
Accumulated impairment losses, Ending Balance | (47.2) |  | (47.2) |
Goodwill, Beginning Balance |  |  | 257.4 |
Goodwill impairment | 12.5 | $ 0.0 | 12.5 | $ 0.0
Goodwill, Other |  |  | (0.1) |
Goodwill, Ending Balance | 244.8 |  | 244.8 |
Specialty Alloys Operations |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill, Beginning Balance |  |  | 195.5 |
Goodwill impairment |  |  | 0.0 |
Goodwill, Other |  |  | 0.0 |
Goodwill, Ending Balance | 195.5 |  | 195.5 |
Performance Engineered Products |  |  |  |
Goodwill [Line Items] |  |  |  |
Goodwill, Beginning Balance |  |  | 61.9 |
Goodwill impairment |  |  | 12.5 |
Goodwill, Other |  |  | (0.1) |
Goodwill, Ending Balance | $ 49.3 |  | $ 49.3 |

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