Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Basic earnings per share:
Income from continuing operations (in Dollars)									$ 55.9	$ 30.8	$ 34.0
Weighted average number of shares outstanding (in Shares)	29.5	29.5	29.5	29.6	29.6	29.6	29.5	29.4	29.5	29.5	29.2
Basic earnings per share from continuing operations (in Dollars per share)	$ 0.71	$ 0.43	$ 0.49	$ 0.27	$ 0.51	$ 0.30	$ 0.39	$ (0.16)	$ 1.90	$ 1.04	$ 1.16
Diluted earnings per share:
Income from continuing operations (in Dollars)									$ 55.9	$ 30.8	$ 34.0
Weighted average number of shares outstanding (in Shares)	29.5	29.5	29.5	29.6	29.6	29.6	29.5	29.4	29.5	29.5	29.2
Effect of dilutive securities:
Restricted stock units (in Shares)									0.3	0.4	0.5
Total shares and dilutive securities (in Shares)	29.8	29.8	29.8	29.8	29.9	29.9	29.8	29.4	29.8	29.9	29.7
Diluted earnings per share from continuing operations (in Dollars per share)	$ 0.70	$ 0.43	$ 0.48	$ 0.27	$ 0.51	$ 0.30	$ 0.38	$ (0.16)	$ 1.88	$ 1.03	$ 1.15