ACQUISITIONS - Schedule of Pro Forma Information (Details) - Environmental Stoneworks - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Jul. 29, 2018	Sep. 28, 2019	Jul. 29, 2018
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net sales	$ 1,285,043	$ 1,381,820	$ 3,661,428	$ 3,668,062
Net income (loss) applicable to common shares	$ 28,456	$ (56,165)	$ 10,532	$ (221,019)
Net income (loss) per common share:
Basic (in dollars per share)	$ 0.23	$ (0.45)	$ 0.08	$ (1.76)
Diluted (in dollars per share)	$ 0.23	$ (0.45)	$ 0.08	$ (1.76)