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, 2018	Mar. 31, 2017
Numerator:
Loss from continuing operations, net of taxes	$ (91.7)	$ (37.7)
Income from discontinued operations, net of taxes	1.4	0.3
Net loss	$ (90.3)	$ (37.4)
Denominator:
Weighted average common shares outstanding - Basic (shares)	52,673,672	52,529,826
Effect of dilutive restricted stock (shares)	0	0
Weighted average common shares outstanding - Diluted (shares)	52,673,672	52,529,826
Basic (loss) earnings per common share:
Continuing operations (usd per share)	$ (1.74)	$ (0.72)
Discontinued operations (usd per share)	0.03	0.01
Net (loss) income (usd per share)	(1.71)	(0.71)
Diluted (loss) earnings per common share:
Continuing operations (usd per share)	(1.74)	(0.72)
Discontinued operations (usd per share)	0.03	0.01
Net (loss) income (usd per share)	$ (1.71)	$ (0.71)
Restricted Stock
Diluted (loss) earnings per common share:
Unvested restricted stock awards under the Stock Plan (shares)	104,411	111,136