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Goodwill and Intangible Assets (Tables) | 6 Months Ended
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Dec. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract] |
Changes in Carrying Amount of Goodwill | The following summarizes changes to the goodwill balance for the six months ended December 31, 2017
|  | Carrying amount |
Beginning balance July 1, 2017 |  | $ | 316.1 |
Adjustments to acquisitions (see note 2) |  |  | 1.9 |
Translation adjustments |  |  | 1.4 |
Ending balance December 31, 2017 |  | $ | 319.4 |
Summarized Amounts Reported as Intangible Assets | The following summarizes the amounts reported as intangible assets
|  | Gross |  |  |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  |  |  |
|  | Amount |  |  | Amortization |  |  | Net |
At December 31, 2017: |  |  |  |  |  |  |  |  |  |  |  |
Purchased licenses and technologies |  | $ | 527.2 |  |  | $ | (79.6 | ) |  | $ | 447.6 |
Customer relationships |  |  | 4.6 |  |  |  | (3.1 | ) |  |  | 1.5 |
Trademarks |  |  | 3.0 |  |  |  | (0.9 | ) |  |  | 2.1 |
Total amortized intangible assets |  |  | 534.8 |  |  |  | (83.6 | ) |  |  | 451.2 |
In-process research and development |  |  | 24.0 |  |  |  | — |  |  |  | 24.0 |
Total unamortized intangible assets |  |  | 24.0 |  |  |  | — |  |  |  | 24.0 |
Total intangible assets |  | $ | 558.8 |  |  | $ | (83.6 | ) |  | $ | 475.2 |
|  | Gross |  |  |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  |  |  |
|  | Amount |  |  | Amortization |  |  | Net |
At June 30, 2017: |  |  |  |  |  |  |  |  |  |  |  |
Purchased licenses and technologies |  | $ | 525.7 |  |  | $ | (61.2 | ) |  | $ | 464.5 |
Customer relationships |  |  | 4.6 |  |  |  | (2.8 | ) |  |  | 1.8 |
Trademarks |  |  | 3.0 |  |  |  | (0.8 | ) |  |  | 2.2 |
Total amortized intangible assets |  |  | 533.3 |  |  |  | (64.8 | ) |  |  | 468.5 |
In-process research and development |  |  | 23.1 |  |  |  | — |  |  |  | 23.1 |
Total unamortized intangible assets |  |  | 23.1 |  |  |  | — |  |  |  | 23.1 |
Total intangible assets |  | $ | 556.4 |  |  | $ | (64.8 | ) |  | $ | 491.6 |
Amortization for Intangible Assets | The Company recorded amortization expense during the respective periods for these intangible assets as follows:
|  | Three months ended |  |  | Six months ended |
|  | December 31, |  |  | December 31, |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Amortization of intangible assets |  | $ | 9.3 |  |  | $ | 9.3 |  |  | $ | 18.6 |  |  | $ | 14.8 |

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