Income Tax Expense Unrecognized Tax Benefits (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Effective Income Tax Rate, Continuing Operations	33.00%	44.60%	35.50%	32.10%