Condensed Consolidated Statements of Comprehensive Loss (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net loss	$ (5.1)	$ (12.0)	$ (26.2)	$ (24.2)
Net unrealized (losses) gains on derivative financial instruments:
Net holding gains (losses) arising during the period	1.8	(0.4)	4.6	0.9
Reclassification adjustment for net realized gains included in net loss	(1.9)	(0.3)	(3.2)	(0.7)
Total net unrealized (losses) gains on derivative financial instruments	(0.1)	(0.7)	1.4	0.2
Reclassification of adjustments for defined benefit plans recorded in net loss	0.5	0.3	0.9	0.5
Unrealized foreign currency translation losses	(6.7)	(2.4)	(10.9)	(1.8)
Total other comprehensive loss, net of tax	(6.3)	(2.8)	(8.6)	(1.1)
Comprehensive loss	$ (11.4)	$ (14.8)	$ (34.8)	$ (25.3)