ACQUISITIONS - Pro Forma Information (Details) - Walpar, Convert, Torrent and CSP Coatings - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Business Acquisition [Line Items]
Net sales	$ 2,772,150	$ 2,842,162	$ 2,818,035
Net earnings	$ 154,302	$ 98,292	$ 122,407
Earnings per share-diluted (in dollars per share)	$ 7.09	$ 4.38	$ 5.39

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Per diluted share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

+ References

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-Publisher FASB
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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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-Publisher FASB
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