Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Operating Segment Reporting Information

Financial information for our operating segments for the quarters ended March 31, 2018 and 2017 were as follows:

	(Unaudited)
	Composite		Engineered		Corporate &
(In millions)	Materials		Products		Other (a)			Total
First Quarter 2018
Net sales to external customers	$	444.6	$	95.5	$	—		$	540.1
Intersegment sales		19.2		—		(19.2	)		—
Total sales	$	463.8	$	95.5	$	(19.2	)	$	540.1
Operating income		91.0		9.9		(18.5	)		82.4
Depreciation and amortization		27.5		2.3		—			29.8
Stock-based compensation		3.6		0.7		5.6			9.9
Accrual basis additions to capital expenditures		45.3		—		—			45.3
First Quarter 2017
Net sales to external customers	$	387.5	$	91.3	$	—		$	478.8
Intersegment sales		17.1		—		(17.1	)		—
Total sales	$	404.6	$	91.3	$	(17.1	)	$	478.8
Operating income		81.9		13.0		(16.3	)		78.6
Depreciation and amortization		22.5		1.8		0.1			24.4
Stock-based compensation		3.4		0.7		6.8			10.9
Accrual basis additions to capital expenditures		86.6		6.3		—			92.9

(a) We do not allocate Corporate expenses to the operating segments.

Schedule of Goodwill and Intangible Assets by Segment

The carrying amount of gross goodwill and intangible assets by segment is as follows:

	March 31,		December 31,
(In millions)	2018		2017
Composite Materials	$	105.4	$	103.7
Engineered Products	44.8			45.0
Goodwill and intangible assets	$	150.2	$	148.7