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COMMITMENTS AND CONTINGENCIES Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Dec. 25, 2015
Commitments and Contingencies Disclosure [Abstract]
Operating leases, maximum period afforded to each party to cancel lease agreements	90 days
Operating leases, rent expense	$ 25.9	$ 26.5	$ 23.1
Purchase obligation	27.6
Purchase obligation, due in next twelve months	$ 9.2

X

- Definition

Operating Leases, Maximum Period Afforded to Each Party to Cancel Lease Agreements

+ References

No definition available.

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

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- Definition

Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

+ References

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