Summary of Significant Accounting Policies (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Summary of Significant Accounting Policies (Textual) [Abstract]
Maturity period of Cash and Cash Equivalents		three months or less
Restricted cash	$ 0	$ 0	$ 12.2
Inventory valued using LIFO method	156.7	156.7	123.8
Impairment of goodwill	7.6	7.6	0	0
Minimum Product warranties		1 year
Maximum Product warranties		20 years
Maturity period of Hedging Instruments		less than or greater than 12 months
Extended service period		1 year
Impairment of assets		5.4
Impairment of intangible assets		$ 1.6