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Earnings Per Share
12 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Earnings Per Share

Our earnings per share is calculated by dividing our earnings available to common stockholders by the weighted average common shares outstanding, basic and diluted.

The weighted average common shares outstanding exclude post-1992 shares of the employee stock ownership plan that have not been committed to be released. The unreleased shares, net of shares committed to be released, were 17,581; 20,226; and 21,883 as of March 31, 2018, 2017, and 2016, respectively.