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Segment Reporting - Net Sales by Product Type (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 532,721 | $ 471,225 | $ 1,691,303 | $ 1,417,561
Product concentration risk | Net sales |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percent of Net Sales | 100.00% | 100.00% | 100.00% | 100.00%
Server systems |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 372,404 | $ 301,953 | $ 1,182,362 | $ 859,818
Server systems | Product concentration risk | Net sales |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percent of Net Sales | 69.90% | 64.10% | 69.90% | 60.70%
Subsystems and accessories |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 160,317 | $ 169,272 | $ 508,941 | $ 557,743
Subsystems and accessories | Product concentration risk | Net sales |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percent of Net Sales | 30.10% | 35.90% | 30.10% | 39.30%

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