Employee Benefit Plans (Fair Value Assumptions) (Details) - $ / shares |
12 Months Ended | ||
---|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
Mar. 31, 2017 |
|
Employee Stock Option | |||
Employee Benefit Plan | |||
Dividend yield | 1.72% | ||
Risk-free interest rate | 2.45% | ||
Expected volatility | 33.00% | ||
Expected life (years) | 6 years 2 months 12 days | ||
Weighted average fair value (in dollars per share) | $ 11.55 | ||
Employee Stock Purchase Plans | |||
Employee Benefit Plan | |||
Dividend yield | 1.73% | 1.67% | 2.50% |
Risk-free interest rate | 2.35% | 1.37% | 0.51% |
Expected volatility | 31.00% | 27.00% | 35.00% |
Expected life (years) | 15 days | 15 days | 15 days |
Weighted average fair value (in dollars per share) | $ 9.33 | $ 8.69 | $ 5.73 |
Market Based RSUs | |||
Employee Benefit Plan | |||
Dividend yield | 1.59% | 1.75% | 3.29% |
Risk-free interest rate | 2.51% | 1.40% | 0.86% |
Expected volatility | 30.00% | 31.00% | 34.00% |
Expected life (years) | 3 years | 3 years | 3 years |