Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Income Tax Disclosure [Abstract]
Statutory tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal benefit	0.20%	0.30%	(0.70%)
Nondeductible European Commission fine	0.00%	0.00%	8.60%
Dividends received from deconsolidated operations	(0.90%)	(1.50%)	(1.80%)
Other, including changes in liabilities recorded for uncertain tax positions	(1.60%)	(1.80%)	(3.30%)
Effective income tax rate	32.70%	32.00%	37.80%