Common And Preferred Stock Common and Preferred Stock (Tables)

12 Months Ended

Mar. 31, 2013

Schedule of Repurchases of Shares [Abstract]

Schedule Of Repurchases Of Shares [Table Text Block]

	Fiscal Year Ended March 31,
	2013		2012		2011
Number of shares repurchased	169,432		80,191		1,113,125
Cost of shares repurchased (in thousands of dollars)	$	8,631	$	3,488	$	46,696
Weighted-average cost per share	$	50.94	$	43.49	$	41.95