Goodwill (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill And Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

	Operating segment
	Chemicals		Component Products			EWI			Total
	(In millions)
Balance at December 31, 2011	$	352.6	$	41.1		$	6.4		$	400.1
Sale of discontinued operations		—		(14.3	)		—			(14.3	)
Goodwill impairment		—		—			(6.4	)		(6.4	)
Changes in foreign exchange rates		—		.3			—			.3
Balance at December 31, 2012, 2013 and 2014	$	352.6	$	27.1		$	—		$	379.7