Significant Accounting Policies (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Y Level m	Dec. 31, 2010	Dec. 31, 2009
Cash and Cash Equivalents
Maximum threshold period of maturity (in months)	3
Goodwill and other intangible assets
Number of levels below operating segment considered as reporting unit	1
Debt financing costs
Period of debt, low end of range (in years)	4
Period of debt, high end of range (in years)	10
Deferred financing cost net of accumulated amortization	$ 6.1	$ 9.8
Accumulated amortization of deferred financing cost	6.3	4.1
Product Warranty
Warranty expense	$ 2.0	$ 1.9	$ 0.6
Building and improvements
Property, plant and equipment
Useful life, low end of range (in years)	10
Useful life, high end of range (in years)	40
Machinery and equipment
Property, plant and equipment
Useful life, low end of range (in years)	3
Useful life, high end of range (in years)	20