Earnings Per Share - Common Stock Reconciliation of Basic and Diluted Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Earnings Per Share [Abstract]
Net Earnings	$ 2.8	$ 10.0	$ 5.3	$ 22.9
Less: Earnings allocated to participating securities	(0.1)	(0.3)	(0.2)	(0.6)
Net Earnings available to common shareholders	$ 2.7	$ 9.7	$ 5.1	$ 22.3
Basic earnings per share on common stock (in Dollars per share)	$ 0.07	$ 0.26	$ 0.14	$ 0.60
Diluted earnings per share on common stock (in Dollars per share)	$ 0.07	$ 0.26	$ 0.14	$ 0.60
Average common shares outstanding (millions)
Basic (in Shares)	37.4	37.2	37.4	37.2
Diluted (in Shares)	37.4	37.2	37.4	37.2