Quarterly Results of Operations (Tables)

12 Months Ended

Dec. 31, 2016

Selected Quarterly Financial Information [Abstract]

Quarterly Results of Operations

	Quarter ended
	March31			June30			September30			December31
	(In millions, except per share data)
Year ended December 31, 2015
Net sales	$	365.1		$	360.2		$	336.5		$	287.0
Gross margin		77.4			46.5			43.2			25.2
Net income (loss)		18.4			(159.8	)		(11.8	)		(20.4	)
Basic and diluted income (loss) per share	$	.16		$	(1.38	)	$	(.10	)	$	(.18	)
Year ended December 31, 2016
Net sales	$	318.4		$	356.1		$	356.1		$	333.7
Gross margin		40.4			55.5			75.5			85.6
Net income (loss)		(3.8	)		1.7			22.2			23.2
Basic and diluted income (loss) per share	$	(.03	)	$	.01		$	.19		$	.20