Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 02, 2015	Jul. 03, 2014	Jul. 02, 2015	Jul. 03, 2014	Dec. 31, 2014	Sep. 26, 2013
Related Party Transaction, Due from (to) Related Party [Abstract]
Amount paid for services rendered ($0.1 and less than $0.1 respectively)	$ 4.5	$ 0.2	$ 10.4	$ 0.3
Onex related party ownership percentage					0.00%
Amounts owed to supplier and recorded as accrued liabilities	$ 0.5		$ 0.5		$ 3.9	$ 0.1