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Goodwill and Intangible Assets (Components of Gross and Net Intangible Asset Balances) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 200,366 | $ 121,627
Accumulated Amortization | 123,274 | 97,690
Net Carrying Amount | 77,092 | 23,937
Gross Carrying Amount, Intangibles |  | 123,027
Net Carrying Amount, Intangibles | $ 77,092 | 25,337
In-process research and development, with indefinite life |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Fair value of indefinite lived intangibles |  | $ 1,400
Developed technology |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 3 years 3 months 18 days | 5 years 3 months 18 days
Gross Carrying Amount | $ 117,000 | $ 55,400
Accumulated Amortization | 58,299 | 42,689
Net Carrying Amount | $ 58,701 | $ 12,711
Customer relationships |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 3 years | 3 years 3 months 18 days
Gross Carrying Amount | $ 51,639 | $ 40,300
Accumulated Amortization | 40,634 | 37,567
Net Carrying Amount | $ 11,005 | $ 2,733
Maintenance contracts |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 3 months 18 days | 1 year 3 months 18 days
Gross Carrying Amount | $ 17,000 | $ 17,000
Accumulated Amortization | 15,866 | 12,467
Net Carrying Amount | $ 1,134 | $ 4,533
Trade names |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 3 years 4 months 24 days | 4 years 3 months 18 days
Gross Carrying Amount | $ 9,100 | $ 5,100
Accumulated Amortization | 4,141 | 2,846
Net Carrying Amount | 4,959 | $ 2,254
Backlogs |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 1,800 |
Accumulated Amortization | $ 1,800 |
License agreements |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 5 years 9 months 18 days | 6 years 4 months 24 days
Gross Carrying Amount | $ 2,445 | $ 2,445
Accumulated Amortization | 1,390 | 1,120
Net Carrying Amount | $ 1,055 | $ 1,325
Other intangibles |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 1 year 7 months 6 days | 2 years 8 months 12 days
Gross Carrying Amount | $ 1,382 | $ 1,382
Accumulated Amortization | 1,144 | 1,001
Net Carrying Amount | $ 238 | $ 381

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