Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income (loss)	$ 36.8	$ (34.8)	$ 47.7	$ (39.0)
Reclassification of realized loss on interest rate swap agreements from accumulated other comprehensive loss to net loss, net of tax	0	0	0	1.9
Foreign currency translation adjustment	(1.6)	0.5	0.3	3.0
Comprehensive income (loss)	$ 35.2	$ (34.3)	$ 48.0	$ (34.1)