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COMMITMENTS AND CONTINGENCIES Operating Lease Payments (Details) (USD $)
3 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Operating Leased Assets [Line Items]    
Operating Leases, Rent Expense, Net $ 7,200,000 $ 3,500,000
Operating Leases, Future Minimum Payments Due [Abstract]    
2011 4,013,000  
2012 6,365,000  
2013 4,100,000  
2014 3,610,000  
2015 2,382,000  
2016 And Therafter 13,459,000  
Total $ 33,929,000