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ACQUISITIONS - Schedule of Business Acquisitions Pro Forma (Details) - Walpart, Convert, and Torrent [Member] - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017
Business Acquisition [Line Items] |  |  |  |
Net sales | $ 683,608 | $ 694,713 | $ 2,094,092 | $ 2,078,680
Net earnings | $ 4,860 | $ 36,482 | $ 78,950 | $ 123,986
Earnings per share-diluted (in dollars per share) | $ 220 | $ 1,600 | $ 3,500 | $ 5,460

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- Definition The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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