BASIC AND DILUTED EARNINGS PER COMMON SHARE - Components of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Numerator:
(Loss) income from continuing operations, net of taxes	$ (37.7)	$ 10.6
Income from discontinued operations, net of taxes	0.3	0.4
Net (loss) income	$ (37.4)	$ 11.0
Denominator:
Weighted average common shares outstanding - Basic (shares)	52,529,826	52,482,413
Effect of dilutive restricted stock (shares)	0	167,350
Weighted average common shares outstanding - Diluted (shares)	52,529,826	52,649,763
Basic (loss) earnings per common share:
Continuing operations (usd per share)	$ (0.72)	$ 0.20
Discontinued operations (usd per share)	0.01	0.01
Net (loss) income (usd per share)	(0.71)	0.21
Diluted (loss) earnings per common share:
Continuing operations (usd per share)	(0.72)	0.20
Discontinued operations (usd per share)	0.01	0.01
Net (loss) income (usd per share)	$ (0.71)	$ 0.21
Restricted Stock [Member]
Diluted (loss) earnings per common share:
Unvested restricted stock awards under the Stock Plan	111,136	0