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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. 26, 2017 | Mar. 27, 2016 | Mar. 26, 2017 | Mar. 27, 2016
Segment Reporting Information [Line Items] |  |  |  |
Document Period End Date |  |  | Mar. 26, 2017 |
Revenue, net | $ 341,505 | $ 366,919 | $ 1,114,064 | $ 1,228,214
Gross profit | $ 86,076 | $ 109,033 | $ 336,574 | $ 374,051
Gross margin | 25.20% | 29.70% | 30.20% | 30.50%
Lighting Products [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue, net | $ 154,045 | $ 187,714 | $ 546,805 | $ 690,715
Gross profit | $ 35,355 | $ 48,808 | $ 159,415 | $ 190,531
Gross margin | 23.00% | 26.00% | 29.20% | 27.60%
LED Products [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue, net | $ 131,327 | $ 135,552 | $ 406,858 | $ 407,873
Gross profit | $ 32,385 | $ 42,829 | $ 115,499 | $ 127,645
Gross margin | 24.70% | 31.60% | 28.40% | 31.30%
Power and RF Products [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue, net | $ 56,133 | $ 43,653 | $ 160,401 | $ 129,626
Gross profit | $ 26,396 | $ 22,750 | $ 74,737 | $ 70,990
Gross margin | 47.00% | 52.10% | 46.60% | 54.80%
Total segment gross profit [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gross profit | $ 94,136 | $ 114,387 | $ 349,651 | $ 389,166
Unallocated Costs [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gross profit | $ (3,459) | $ (5,354) | $ (13,077) | $ (15,115)

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