Equity-Based Compensation (Schedule Of Remaining Unrecognized Compensation Expense For Unvested Awards) (Details) $ in Thousands	12 Months Ended
Dec. 29, 2018 USD ($)
Equity Based Compensation [Abstract]
2019	$ 12,186
2020	6,566
2021	4,768
2022	277
Total	$ 23,797
Unrecognized compensation expense weighted average period of recognition	1 year 8 months 16 days

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not Yet Recognized, Next Twelve Months

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- Definition

Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not Yet Recognized, Year Four

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Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not Yet Recognized, Year Three

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Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not Yet Recognized, Year Two

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