Share Based Awards (Details 1)	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected term minimum			3 years 10 months
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected term maximum			3 years 11 months
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	3 years 11 months	4 years 9 months		4 years 10 months
Schedule of Share Based Compensation Valuation Assumption
Expected volatility	38.90%	36.40%
Expected dividends	5.30%	4.40%
Risk-free rate	1.30%	1.70%		1.70%
Minimum [Member]
Schedule of Share Based Compensation Valuation Assumption
Expected volatility			38.30%	36.40%
Expected dividends			4.10%	4.30%
Risk-free rate			1.30%
Maximum [Member]
Schedule of Share Based Compensation Valuation Assumption
Expected volatility			38.90%	36.60%
Expected dividends			5.30%	4.40%
Risk-free rate			1.60%