EMPLOYEE BENEFIT PLANS - Components of Changes in Plan Assets and Benefit Obligations Recognized in Net Periodic Benefit Costs and Other Comprehensive (Income) Loss (Details) - USD ($) $ in Thousands		12 Months Ended
		Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Net periodic benefit costs
Net periodic benefit costs		$ 2,845	$ 2,740	$ 3,378
Components of changes in plan assets and benefit obligations recognized in other comprehensive loss
Total recognized in other comprehensive (income) loss	[1]	(709)	2,456	(849)
Total recognized in net periodic benefit costs and other comprehensive (income) loss		$ 2,136	$ 5,196	$ 2,529

[1] Amounts reclassified out of other comprehensive income (loss) were not material for any of the periods presented.