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Reportable Segments (Revenues, Gross Profit and Gross Margin, by Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Sep. 27, 2015 | Sep. 28, 2014
Segment Reporting Information [Line Items] |  |
Revenue, net | $ 425,489 | $ 427,672
Gross profit | $ 131,748 | $ 135,820
Gross margin | 31.00% | 31.80%
Lighting Products [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue, net | $ 248,031 | $ 223,086
Gross profit | $ 69,081 | $ 55,592
Gross margin | 27.90% | 24.90%
LED Products [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue, net | $ 148,208 | $ 173,590
Gross profit | $ 52,659 | $ 67,624
Gross margin | 35.50% | 39.00%
Power and RF Products [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue, net | $ 29,250 | $ 30,996
Gross profit | $ 14,323 | $ 17,857
Gross margin | 49.00% | 57.60%
Total segment gross profit [Member] |  |
Segment Reporting Information [Line Items] |  |
Gross profit | $ 136,063 | $ 141,073
Unallocated Costs [Member] |  |
Segment Reporting Information [Line Items] |  |
Gross profit | $ (4,315) | $ (5,253)

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