Impairment and Closure Charges (Tables)

3 Months Ended

Mar. 31, 2013

Impairment And Closure Charges Disclosure [Abstract]

Schedule of Impairment and Closure Charges

The following table summarizes the components of impairment and closure charges for the three months ended March 31, 2013 and 2012:

	Three Months Ended
	March 31,
	2013		2012
	(In millions)
Impairment and closure charges:
Impairment	$	—	$	0.3
Closure charges	0.8		0.4
Total impairment and closure charges	$	0.8	$	0.7