Supplemental Guarantor and Non-Guarantor Financial Information Supplemental Guarantor and Non-Guarantor Financial Information Textual (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Guarantor Subsidiaries [Member] | Cost of Sales [Member]
Prior Period Reclassification Adjustment	$ (2.3)
Guarantor Subsidiaries [Member] | Other Expense [Member]
Prior Period Reclassification Adjustment	0.8
Non-Guarantor Subsidiaries [Member] | Cost of Sales [Member]
Prior Period Reclassification Adjustment	2.3
Non-Guarantor Subsidiaries [Member] | Other Expense [Member]
Prior Period Reclassification Adjustment	$ (0.8)