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EARNING PER-SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net Income
Net Income, Basic	$ 18.1	$ 25.0
Net Income, Diluted	$ 18.1	$ 25.0
Weighted Average Common Shares
Basic (in shares)	43.4	43.4
Effect of Dilutive Securities (in shares)	0.4	0.5
Diluted (in shares)	43.8	43.9
Per Common Share Amount
Net income, Basic (in dollars per share)	$ 0.42	$ 0.58
Effect of Dilutive Securities (in dollars per shares)	(0.01)	(0.01)
Net income, Diluted (in dollars per share)	$ 0.41	$ 0.57

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The amount per share resulting from the "as if" assumption that stock options or restrictive stock units were exercised for purposes of computing the dilutive effect of convertible securities.}{Modified Standard, Period Start, Period End, or Total Labels}

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