EARNINGS PER COMMON SHARE - Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Oct. 03, 2015	Jul. 04, 2015	Apr. 05, 2014	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Basic and diluted earnings per common share
Income from continuing operations	$ 86,580	$ 29,503	$ 24,559	$ 10,916	$ 61,508	$ 4,510	$ 9,249	$ (53,559)	$ 151,558	$ 21,708	$ 76,726
Income (loss) from discontinued operations, net of income taxes	(1,033)	123	2,214	720	(44)	(2,207)	(708)	(1,662)	2,024	(4,621)	82,434
Basic net income	$ 85,547	$ 29,626	$ 26,773	$ 11,636	$ 61,464	$ 2,303	$ 8,541	$ (55,221)	153,582	17,087	159,160
Diluted net income									$ 153,582	$ 17,087	$ 159,160
Basic weighted average shares outstanding	128,139	128,101	128,000	127,931	127,703	127,682	127,663	127,489	128,043	127,634	126,264
Stock options and nonvested shares									1,121	588	755
Diluted weighted average shares outstanding	129,425	129,451	129,140	128,636	128,267	128,118	128,431	127,489	129,164	128,222	127,019
Basic earnings per share:
Income (loss) from continuing operations (in dollars per share)	$ 0.68	$ 0.23	$ 0.19	$ 0.09	$ 0.48	$ 0.04	$ 0.07	$ (0.42)	$ 1.18	$ 0.17	$ 0.61
Income (loss) from discontinued operations (in dollars per share)	(0.01)		0.02			(0.02)		(0.01)	0.02	(0.04)	0.65
Net income (in dollars per share)	0.67	0.23	0.21	0.09	0.48	0.02	0.07	(0.43)	1.20	0.13	1.26
Diluted
Income (loss) from continuing operations (in dollars per share)	0.67	0.23	0.19	0.08	0.48	0.04	0.07	(0.42)	1.17	0.17	0.60
Income (loss) from discontinued operations (in dollars per share)	(0.01)		0.02	0.01		(0.02)		(0.01)	0.02	(0.04)	0.65
Net income (loss) (in dollars per share)	$ 0.66	$ 0.23	$ 0.21	$ 0.09	$ 0.48	$ 0.02	$ 0.07	$ (0.43)	$ 1.19	$ 0.13	$ 1.25