Share Based Awards (Details 3)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Schedule of Performance Based Awards Under Incentive plan
Expected term		4 years 9 months 18 days	4 years 10 months 24 days
Performance Based Awards [Member]
Schedule of Performance Based Awards Under Incentive plan
Expected volatility, Minimum Rate	37.70%	35.90%	36.90%
Expected volatility, Maximum Rate	40.80%	36.50%	43.50%
Risk-free rate, Minimum Rate	1.00%	1.40%	1.40%
Risk-free rate, Maximum Rate	1.60%	1.80%	1.80%
Performance Based Awards [Member] | Minimum [Member]
Schedule of Performance Based Awards Under Incentive plan
Expected term	3 years 9 months 18 days
Expected dividends	0.00%	4.30%	3.20%
Performance Based Awards [Member] | Maximum [Member]
Schedule of Performance Based Awards Under Incentive plan
Expected term	4 years
Expected dividends	5.50%	5.00%	4.10%
Stock Options [Member]
Schedule of Performance Based Awards Under Incentive plan
Expected term		4 years 9 months 18 days	4 years 10 months 24 days
Expected volatility, Minimum Rate	38.30%	36.10%	43.40%
Expected volatility, Maximum Rate	41.10%	36.60%	43.70%
Risk-free rate, Minimum Rate	1.10%	1.60%	1.00%
Risk-free rate, Maximum Rate	1.60%	1.70%	1.50%
Stock Options [Member] | Minimum [Member]
Schedule of Performance Based Awards Under Incentive plan
Expected term		3 years 9 months 18 days
Expected dividends	0.00%	4.30%	3.10%
Stock Options [Member] | Maximum [Member]
Schedule of Performance Based Awards Under Incentive plan
Expected term		3 years 10 months 24 days
Expected dividends	5.30%	4.40%	3.90%