Condensed Consolidated Statements of Comprehensive Loss (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (61.4)	$ (34.9)	$ (100.3)	$ (61.1)
Net unrealized gains (losses) on derivative financial instruments:
Net holding gains (losses) arising during the period	2.2	(0.5)	0.7	4.1
Reclassification adjustment for net realized gains included in net loss	(0.7)	(2.0)	(1.2)	(5.2)
Total net unrealized gains (losses) on derivative financial instruments	1.5	(2.5)	(0.5)	(1.1)
Net pension adjustments:
Liability adjustments for defined benefit plans	(1.6)	3.3	(0.8)	5.4
Reclassification of adjustments for defined benefit plans included in net loss	0.4	2.0	1.1	4.4
Total net pension adjustments	(1.2)	5.3	0.3	9.8
Unrealized foreign currency translation (losses) gains	(8.5)	5.3	(9.7)	(5.6)
Total other comprehensive (loss) income, net of tax	(8.2)	8.1	(9.9)	3.1
Comprehensive loss	$ (69.6)	$ (26.8)	$ (110.2)	$ (58.0)