Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net income (loss)	$ 7.0	$ (36.7)
Other comprehensive income, net of tax:
Foreign currency translation loss, net of tax of ($0.1)	0	(0.2)
Defined benefit pension and postretirement plans:
Amortization of prior service benefits, net of tax of ($1.4), ($1.2)	(2.4)	(2.0)
Amortization of net actuarial loss, net of tax of $2.4, $2.8	4.2	4.8
Other comprehensive income	1.8	2.6
Total comprehensive income (loss)	$ 8.8	$ (34.1)