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Lease Termination Exit Costs (Details Textuals) (USD $)
In Millions
3 Months Ended
Jun. 30, 2011
Lease termination exit costs (Textuals)  
Total exit costs $ 10.7
Operating Lease Obligation [Member]
 
Lease termination exit costs (Textuals)  
Total exit costs 7.2
Other Facility Related Costs [Member]
 
Lease termination exit costs (Textuals)  
Total exit costs 2.8
Assets write-Downs [Member]
 
Lease termination exit costs (Textuals)  
Total exit costs $ 0.7