The expected percentage of the workforce to be eliminated as a result of restructuring activities.

No definition available.

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- Definition

The number of positions eliminated during the period as a result of restructuring activities.

+ References

No definition available.

+ Details

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- Definition

The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s).

+ References

No definition available.

+ Details

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

Reference 3: 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 4: 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

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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Plans of Restructuring Narrative (Details) $ in Thousands	3 Months Ended								12 Months Ended
Plans of Restructuring Narrative (Details) $ in Thousands	Dec. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jul. 01, 2017 USD ($)	Apr. 01, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 24, 2016 USD ($)	Jun. 25, 2016 USD ($)	Mar. 26, 2016 USD ($)	Dec. 30, 2017 USD ($) positions	Dec. 31, 2016 USD ($)	Dec. 26, 2015 USD ($)	Nov. 06, 2014
Restructuring Cost and Reserve [Line Items]
Provision \| $	$ 0	$ 0	$ 0	$ 0	$ 16,080	$ 5,370	$ 20,383	$ 4,058	$ 0	$ 45,891	$ 34,931
November 2014 restructuring initiative [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated \| positions									900
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent									4.00%
November 2014 restructuring initiative [Member] \| Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Expected percentage of workforce eliminated (in hundredths)												2.00%
November 2014 restructuring initiative [Member] \| Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Expected percentage of workforce eliminated (in hundredths)												3.00%