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EQUITY AND NONCONTROLLING INTERESTS - Rollforward of Redeemable Noncontrolling Interest (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2016	Jul. 07, 2016	Dec. 30, 2017
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning balance	$ 25,985	$ 28,008	$ 14,659
Purchase of 12% equity interest	(12,360)		0
Foreign currency translation	(818)	(653)	1,034
Change in fair value, included in additional paid-in capital		(1,690)
Ending balance	14,659	25,985	16,609
Net Income Attributable to Noncontrolling Interest
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income attributable to noncontrolling interest	357	$ 320	916
Other Income (Expense)
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income attributable to noncontrolling interest	$ 1,495		$ 0

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- Definition

Temporary Equity, Adjustment to Fair Value

+ References

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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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- Definition

Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569655-111683

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
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-Section 45
-Paragraph 24
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- Definition

Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.19)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
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-Section S99
-Paragraph 3A
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-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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Adjustments to temporary equity resulting from foreign currency translation adjustments.

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