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Acquired Intangible Assets - Calculation Of Acquired Intangibles By Asset Class (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Jun. 30, 2017
Finite-Lived Intangible Assets, Net [Abstract] |  |
Cost | $ 2,333,736 | $ 2,161,647
Accumulated Amortization | (942,323) | (689,105)
Total | 1,391,413 | 1,472,542
Technology assets |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Cost | 985,226 | 930,841
Accumulated Amortization | (392,297) | (272,872)
Total | 592,929 | 657,969
Intangible assets fully amortized during the period | $ 19,000 |
Weighted-average amortization period (in years) for acquired intangible assets | 6 years |
Customer assets |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Cost | $ 1,348,510 | 1,230,806
Accumulated Amortization | (550,026) | (416,233)
Total | 798,484 | $ 814,573
Intangible assets fully amortized during the period | $ 3,000 |
Weighted-average amortization period (in years) for acquired intangible assets | 8 years |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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