Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		24 Months Ended	51 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2010	Mar. 31, 2012	Jun. 10, 2011
Commitments and Contingencies (Textual)
Selling, general and administrative expenses	$ 0	$ 1.1
Certain Claims Selling General And Administrative Net				388.2
Compensatory damages awarded			27.6
Percentage of fault apportioned to plaintiffs			30.00%
Percentage of fault apportioned to company			34.00%
Percentage of fault apportioned to unrelated third party			36.00%
Verdict in full and entered judgment					$ 20.3