Common And Preferred Stock Common and Preferred Stock (Tables)

12 Months Ended

Mar. 31, 2012

Schedule of Repurchases of Shares [Abstract]

Schedule Of Repurchases Of Shares [Table Text Block]

	Fiscal Year Ended March 31,
	2012		2011		2010
Number of shares repurchased	80,191		1,113,125		743,876
Cost of shares repurchased (in thousands of dollars)	$	3,488	$	46,696	$	32,942
Weighted-average cost per share	$	43.49	$	41.95	$	44.28