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SEGMENT INFORMATION, REVENUES BY GEOGRAPHY AND SIGNIFICANT CUSTOMERS - Revenues by product (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2017 | Mar. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | $ 218,359 | $ 167,433 | $ 636,652 | $ 480,719
Revenues |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue percentage | 100.00% | 100.00% | 100.00% | 100.00%
Service provider Technology |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | $ 104,724 | $ 96,215 | $ 340,936 | $ 309,230
Service provider Technology | Revenues |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue percentage | 48.00% | 57.00% | 54.00% | 64.00%
Enterprise Technology |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | $ 113,635 | $ 71,218 | $ 295,716 | $ 171,489
Enterprise Technology | Revenues |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue percentage | 52.00% | 43.00% | 46.00% | 36.00%

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