Post Retirement Plans (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015	Jan. 02, 2016
Pension and Other Postretirement Benefit Expense [Abstract]
Estimated net actuarial loss to be amortized from accumulated other comprehensive loss			$ 3.1
Estimated prior service cost to be amortized from accumulated other comprehensive loss			0.2
Contribution to defined benefit pension plans	$ 1.1	$ 0.7	2.2	$ 1.5	$ 4.7
Expected total contribution to defined benefit pension plans			4.6
Effect of plan amendment on net periodic benefit costs	$ 2.9		$ 2.9