Share Based Awards (Details 3)	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Schedule of Performance Based Awards Under Incentive plan
Expected life (in years)	3 years 10 months	4 years 10 months
Expected volatility	38.30%	36.60%
Expected dividends	4.10%	4.30%
Risk-free rate	1.60%	1.70%
Performance Based Award [Member]
Schedule of Performance Based Awards Under Incentive plan
Expected life (in years)	3 years 10 months 25 days	4 years 9 months
Expected volatility	37.70%	36.50%
Expected dividends	4.10%	4.30%
Risk-free rate	1.60%	1.60%