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Common And Preferred Stock Common and Preferred Stock (Tables)
 12 Months Ended
Mar. 31, 2018
Schedule of Repurchases of Shares [Abstract]  
Schedule Of Repurchases Of Shares [Table Text Block]
er the programs for the fiscal year ended March 31, 2018 were as follows:
 
Fiscal Year Ended March 31, 2018
Number of shares repurchased
403,624

Cost of shares repurchased (in thousands of dollars)
$
21,610

Weighted-average cost per share
$
53.54