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Reportable Segments (Revenues, Gross Profit and Gross Margin, by Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 27, 2016 | Mar. 29, 2015 | Mar. 27, 2016 | Mar. 29, 2015
Segment Reporting Information [Line Items] |  |  |  |
Revenue, net | $ 366,919 | $ 409,519 | $ 1,228,214 | $ 1,250,348
Gross profit | $ 109,033 | $ 125,148 | $ 374,051 | $ 397,229
Gross margin | 29.70% | 30.60% | 30.50% | 31.80%
Lighting Products [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue, net | $ 187,714 | $ 224,109 | $ 690,715 | $ 677,363
Gross profit | $ 48,808 | $ 58,315 | $ 190,531 | $ 178,608
Gross margin | 26.00% | 26.00% | 27.60% | 26.40%
LED Products [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue, net | $ 150,189 | $ 154,384 | $ 451,759 | $ 479,851
Gross profit | $ 52,102 | $ 55,358 | $ 156,489 | $ 182,406
Gross margin | 34.70% | 35.90% | 34.60% | 38.00%
Power and RF Products [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue, net | $ 29,016 | $ 31,026 | $ 85,740 | $ 93,134
Gross profit | $ 13,477 | $ 16,484 | $ 42,146 | $ 51,601
Gross margin | 46.40% | 53.10% | 49.20% | 55.40%
Total segment gross profit [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gross profit | $ 114,387 | $ 130,157 | $ 389,166 | $ 412,615
Unallocated Costs [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gross profit | $ (5,354) | $ (5,009) | $ (15,115) | $ (15,386)

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