Other Operating Expenses, Net (Details)	12 Months Ended
	Jan. 01, 2016 USD ($)	Jan. 02, 2015 USD ($)	Jan. 03, 2014 USD ($)
Operating Costs and Expenses [Abstract]
Other operating (income) expense, net	$ 66,464,000	$ 15,297,000	$ 15,790,000
Investments in Capacity and Capabilities [Member]
Operating Costs and Expenses [Abstract]
Other operating (income) expense, net	23,037,000	8,925,000	0
Operating Unit Realignment [Member]
Operating Costs and Expenses [Abstract]
Other operating (income) expense, net	0	1,017,000	5,625,000
Legacy Lake Region Medical Consolidation [Member]
Operating Costs and Expenses [Abstract]
Other operating (income) expense, net	1,961,000	0	0
Other Consolidation And Optimization Income (Costs) [Member]
Operating Costs and Expenses [Abstract]
Other operating (income) expense, net	0	(71,000)	1,095,000
Orthopaedic facility optimization [Member]
Operating Costs and Expenses [Abstract]
Other operating (income) expense, net	1,395,000	1,317,000	8,038,000
Integration costs [Member]
Operating Costs and Expenses [Abstract]
Other operating (income) expense, net	33,449,000	3,000	(502,000)
Asset dispositions severance and other [Member]
Operating Costs and Expenses [Abstract]
Other operating (income) expense, net	$ 6,622,000	$ 4,106,000	$ 1,534,000
Legacy Lake Region Medical Consolidation [Member]
Other Operating Income Expense Detail [Line Items]
Number of facilities after consolidation	1