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Intangible Assets Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 25, 2018	Mar. 26, 2017	Mar. 25, 2018	Mar. 26, 2017	Jun. 25, 2017
Goodwill [Line Items]
Goodwill	$ 617,651		$ 617,651		$ 618,828
Goodwill, Acquired During Period	246,278
Goodwill, Impairment Loss	(247,455)	$ 0	(247,455)	$ 0
Power and RF Products
Goodwill [Line Items]
Goodwill	347,047		347,047		100,769
Goodwill, Acquired During Period	246,278
Goodwill, Impairment Loss	0
LED Products
Goodwill [Line Items]
Goodwill	180,278		180,278		180,278
Goodwill, Acquired During Period	0
Goodwill, Impairment Loss	0
Lighting Products
Goodwill [Line Items]
Goodwill	90,326		$ 90,326		$ 337,781
Goodwill, Acquired During Period	0
Goodwill, Impairment Loss	$ (247,455)

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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