PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - NARRATIVE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 02, 2016	Oct. 04, 2015	Oct. 02, 2016	Oct. 04, 2015	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate			3.25%		4.00%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets			6.10%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	$ 3,147	$ 2,583	$ 20,085	$ 2,583
Employer contributions	18,549	29,349	20,385	30,685
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	0	0	0	0
Employer contributions	$ 7,473	$ 5,174	$ 22,181	$ 14,502