Consolidated Statements of Comprehensive Loss (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net loss	$ (340.7)	$ (46.7)	$ (158.5)
Net unrealized (losses) gains on derivative financial instruments:
Net holding (losses) gains arising during the period	3.1	0.2	0.6
Reclassification adjustment for net realized (gains) losses included in net loss	(2.0)	0.6	0
Total net unrealized (losses) gains on derivative financial instruments	1.1	0.8	0.6
Net pension adjustments:
Reclassification of adjustments for defined benefit plans recorded in net loss	(1.0)	(12.7)	4.6
Unrealized foreign currency translation (losses) gains	(1.7)	0	3.0
Total other comprehensive (loss) income, net of tax	(1.6)	(11.9)	8.2
Comprehensive loss	$ (342.3)	$ (58.6)	$ (150.3)