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Earnings Per Share (Narratives) (Details)
3 Months Ended 6 Months Ended 6 Months Ended
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2012
Two Thousand Ten Long Term Incentive Plan [Member]
Sep. 30, 2012
Stock Options [Member]
Sep. 30, 2011
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant     1,250,000    
Shares of stock were issued upon the exercising of stock option       28,298 162,144
Number of shares of restricted stock vested and were issued   49,254      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 451,000 290,000