Share-Based Compensation Modifications of Share-Based Awards (Details) $ in Thousands	12 Months Ended
Dec. 30, 2018 USD ($) employees	Dec. 31, 2017 USD ($) employees
Share-based Compensation Arrangement by Share-based Payment Award
Number of employees subject to modification \| employees	8	31
Reorganization and realignment
Share-based Compensation Arrangement by Share-based Payment Award
Increase in employee share-based compensation due to award modification \| $	$ 1,238	$ 4,930

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No definition available.

+ Details

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

The number of employees affected by the modification of an equity-based compensation plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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