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Business Combinations (Components of Aggregate Estimated Purchase Consideration) (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Oct. 27, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Business Acquisition [Line Items] |  |  |
Cash paid to sellers at closing |  | $ 97,581 | $ 51,088
Data Center Business |  |  |
Business Acquisition [Line Items] |  |  |
Cash paid to sellers at closing | $ 23,000 |  |
Deferred payments | 18,430 |  |
Contingent consideration | 34,100 |  |
Working capital adjustment | 6,534 |  |
Replacement of stock-based awards | 2,273 |  |
Aggregate estimated purchase consideration | $ 84,337 |  |

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