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INCOME TAXES - Change in Tax Positions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Reconciliation of Unrecognized Tax Benefits
Beginning balance	$ 24,186	$ 23,338	$ 34,627
Additions to tax positions for current year	1,791	2,194	2,362
Additions to tax positions for prior years	1,428	2,035	3,028
Reductions to tax positions for prior years	0	(1,866)	(3,991)
Settlements	(1,754)	(918)	(1,946)
Expiration of statute of limitations	(941)	(597)	(10,742)
Ending balance	$ 24,710	$ 24,186	$ 23,338

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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