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INVESTMENTS (Narrative) (Details) - USD ($) $ in Thousands			12 Months Ended
	Jan. 03, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Mar. 30, 2017
Investments with Investee Names [line items]
Loan receivable, principal				$ 23,357
Other gains (losses)			$ 4,848	(1,107)
Proceeds from disposal of investments and other			$ 14,352	$ 12,774
Other disposals of assets [member]
Investments with Investee Names [line items]
Proceeds from disposal of investments and other	$ 18,300
Equinox [member]
Investments with Investee Names [line items]
Loan receivable, principal					$ 20,000
Other gains (losses)		$ 1,800
Equinox [member] | Other disposals of assets [member]
Investments with Investee Names [line items]
Proceeds from disposal of investments and other	$ 18,300

X

- Definition

The amount of corporate loans made by the entity. [Refer: Corporate loans [member]]

+ References

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X

- Definition

The gains (losses) that the entity does not separately disclose in the same statement or note.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The cash inflow from sales of investments other than investments accounted for using the equity method. [Refer: Investments accounted for using equity method; Investments other than investments accounted for using equity method]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Investments with Investee Names [line items].

+ References

No definition available.

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