Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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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.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

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STOCK BASED COMPENSATION (Details) - USD ($) $ in Millions	12 Months Ended
STOCK BASED COMPENSATION (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 52.3	$ 13.2	$ 13.4
Total unrecognized compensation expense for unvested options	$ 6.5
Unrecognized compensation expense for unvested options, recognition period	3 years
Restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 40.7
Unreccognized stock-based compensation expense	5.1
Deferred stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unreccognized stock-based compensation expense	$ 0.1
2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to be awarded (in shares)	8,800,000
2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to be awarded (in shares)	4,800,000