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Workforce Reductions (Narrative)(Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Workforce Reduction and Advisory Costs    
One-time termination benefits $ 1.1 $ 1.9
Payments for termination benefits   0.7
Structuring advisory costs   $ 4.5