Postretirement Health Care (Components of Net Periodic Postretirement Benefit Cost for 2013) (Details) - Other Postretirement Benefit Plans, Defined Benefit [Member] $ in Thousands	12 Months Ended
	Jan. 02, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 735
Interest cost	846
Amortization of net (gain)/loss	62
Net periodic postretirement benefit cost/(income)	$ 1,643