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Costs Associated with LED Business Restructuring Costs Associated with LED Business Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 25, 2016	Dec. 27, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	$ 15,913	$ 102,400
Loss on disposal or impairment of long-lived assets | Loss on disposal or impairment of long-lived assets
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	9,005
Severance expense | Sales, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	300
Lease termination and facility consolidation costs | Sales, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	1,735
Wolfspeed business [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost		$ 4,900
Wolfspeed business [Member] | Loss on disposal or impairment of long-lived assets | Loss on disposal or impairment of long-lived assets
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	$ 4,873

X

- Definition

Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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+ References

No definition available.

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