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)