INCENTIVE COMPENSATION - Schedule of Compensation Cost and Income Tax Benefit (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Equity-Based RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total cost	$ 3,335	$ 4,360	$ 5,217	$ 5,633
Income tax benefit	812	1,061	1,270	1,371
Net cost	2,523	3,299	3,947	4,262
Equity-Based RSU \| Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total cost	150	117	162	169
Equity-Based RSU \| Selling, general and administrative expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total cost	3,185	4,243	5,055	5,464
Liability-Based RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax benefit	55	0	55	0
Net cost	173	0	173	0
Liability-Based RSU \| Selling, general and administrative expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total cost	$ 228	$ 0	$ 228	$ 0

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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