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Earnings Per Common Share - Narrative (Details) - shares
3 Months Ended 9 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Earnings Per Share [Abstract]        
Potentially dilutive securities excluded from computations of diluted net earnings per common share (in shares) 1,000,000 0 1,000,000 2,000,000