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Income Taxes Income Tax Provision (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Income Tax Disclosure [Abstract]    
Effective income tax rate (15.50%) 3969.80%
Expected tax rate (119.60%)  
Permanent items $ 6,722 $ 913
Effective income tax rate reconciliation, adjustment (6.20%) 3694.00%