Income Taxes (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Effective income tax rate attributable to continuing operations (in hundredths)	21.70%	30.70%	33.30%	32.20%