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Acquired Developed Technology and Other Intangibles (Tables) | 12 Months Ended
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Jun. 30, 2018
Acquired Developed Technology and Other Intangibles |
Schedule of acquired developed technology and other intangibles | The following tables present details of the Company’s acquired developed technology, customer relationships and other intangibles for the fiscal years ended June 30, 2018, and July 1, 2017, (in millions):
As of June 30, 2018 | Gross Carrying Amount |  | Accumulated Amortization |  | Net
Acquired developed technology | $ | 447.8 |  |  | $ | (326.4 | ) |  | $ | 121.4 |
Customer relationships | 175.4 |  |  | (97.1 | ) |  | 78.3 |
In-process research and development | 9.0 |  |  | — |  |  | 9.0 |
Other (1) | 42.8 |  |  | (16.4 | ) |  | 26.4 |
Total intangibles | $ | 675.0 |  |  | $ | (439.9 | ) |  | $ | 235.1 |
As of July 1, 2017 | Gross Carrying Amount |  | Accumulated Amortization |  | Net
Acquired developed technology | $ | 369.3 |  |  | $ | (352.0 | ) |  | $ | 17.3 |
Customer relationships | 94.9 |  |  | (81.3 | ) |  | 13.6 |
Other (1) | 9.9 |  |  | (9.7 | ) |  | 0.2 |
Total intangibles | $ | 474.1 |  |  | $ | (443.0 | ) |  | $ | 31.1 |
(1) | Other intangibles consist of customer backlog, non-competition agreements, patents, proprietary know-how and trade secrets, trademarks and trade names.
Schedule of details of amortization expense | The following table presents details of the Company’s amortization (in millions):
| Years Ended
| June 30, 2018 |  | July 1, 2017 |  | July 2, 2016
Cost of revenues | $ | 26.7 |  |  | $ | 14.3 |  |  | $ | 17.3 |
Operating expense | 21.0 |  |  | 14.0 |  |  | 14.6 |
Total | $ | 47.7 |  |  | $ | 28.3 |  |  | $ | 31.9 |
Schedule of estimated future amortization | Based on the carrying amount of acquired developed technology, customer relationships and other intangibles as of June 30, 2018, and assuming no future impairment of the underlying assets, the estimated future amortization is as follows (in millions):
Fiscal Years |
2019 | $ | 68.5 |
2020 | 59.6 |
2021 | 55.2 |
2022 | 28.4 |
Thereafter | 14.4 |
Total amortization | $ | 226.1 |

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