EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Basic and Diluted Earnings Per Share Table

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Computation of Income (Loss) per Share	(In millions, except per share data)
Net income (loss)	$	52.7	$	17.5	$	60.2	$	(21.4	)
Basic shares	166.3		165.2		166.0		165.2
Basic net income (loss) per share	$	0.32	$	0.11	$	0.36	$	(0.13	)
Diluted shares:
Basic shares	166.3		165.2		166.0		165.2
Stock-based compensation	2.2		1.3		2.2		—
Diluted shares	168.5		166.5		168.2		165.2
Diluted net income (loss) per share	$	0.31	$	0.11	$	0.36	$	(0.13	)