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Commitments and Contingencies (Future Minimum Rental Commitments) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
Commitments and Contingencies [Abstract]
2012	$ 9.0
2013	6.0
2014	4.0
2015	2.6
2016	2.0
After 2016	1.8
Total minimum payment required	$ 25.4

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The total of future contractually required payments on leases defined as operating.

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