SEGMENT INFORMATION - Reconciliation of Segment Operating Income to Consolidated Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 24, 2017	Sep. 30, 2018	Sep. 24, 2017
Segment Reporting Information [Line Items]
Operating Income	$ 44,709	$ 30,174	$ 139,522	$ 87,796
Unallocated corporate expenses	(61,946)	(39,009)	(179,679)	(110,436)
Amortization	(8,873)	(5,237)	(25,140)	(14,239)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Income	62,493	42,114	197,891	122,552
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Unallocated corporate expenses	(8,911)	(6,703)	(33,229)	(20,517)
Amortization	$ (8,873)	$ (5,237)	$ (25,140)	$ (14,239)

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

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