Share Based Awards (Details 1)	3 Months Ended
	Jun. 30, 2012 Y	Jun. 30, 2011 Y
Schedule of Share Based Compensation Valuation Assumption
Expected life (in years)	5.0	4.3
Expected volatility	41.30%	41.20%
Expected Dividends	2.40%	1.60%
Risk-free rate		1.80%
Minimum [Member]
Schedule of Share Based Compensation Valuation Assumption
Risk-free rate	0.70%
Maximum [Member]
Schedule of Share Based Compensation Valuation Assumption
Risk-free rate	0.80%