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Share-Based Compensation (Tables) | 12 Months Ended
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Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Assumptions Used | The following weighted-average assumptions were used for options granted during fiscal 2019, fiscal 2018 and fiscal 2017:
|  | Fiscal 2019 |  | Fiscal 2018 |  | Fiscal 2017
Risk-free interest rate |  | 2.64 | % |  | 2.01 | % |  | 1.29 | %
Expected life of options |  | 6.2 years |  |  | 5.7 years |  |  | 5.7 years |
Expected dividend yield of stock |  | 1.47 | % |  | 1.58 | % |  | 1.54 | %
Expected volatility of stock |  | 19.91 | % |  | 22.08 | % |  | 22.92 | %
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding | A summary of share option activity is as follows:
|  | Number of Options |  | Weighted Average Exercise Price |  | Average Remaining Contractual Term |  | Aggregate Intrinsic Value
Outstanding at March 31, 2018 |  | 2,021,662 |  |  | $ | 58.56 |  |  |  |  |
Granted |  | 436,121 |  |  | 114.49 |  |  |  |  |
Exercised |  | (335,358 | ) |  | 40.70 |  |  |  |  |
Forfeited |  | (17,740 | ) |  | 79.91 |  |  |  |  |
Outstanding at March 31, 2019 |  | 2,104,685 |  |  | $ | 72.82 |  |  | 6.7 years |  | $ | 116,199 |
Exercisable at March 31, 2019 |  | 1,164,583 |  |  | $ | 57.81 |  |  | 5.5 years |  | $ | 81,780 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity | A summary of the non-vested restricted share activity is presented below:
|  | Number of Restricted Shares |  | Number of Restricted Share Units |  | Weighted-Average Grant Date Fair Value
Non-vested at March 31, 2018 |  | 763,201 |  |  | 35,431 |  |  | $ | 68.65 |
Granted |  | 178,142 |  |  | 22,038 |  |  | 104.83 |
Vested |  | (233,629 | ) |  | (23,290 | ) |  | 62.15 |
Forfeited |  | (31,341 | ) |  | (960 | ) |  | 76.98 |
Non-vested at March 31, 2019 |  | 676,373 |  |  | 33,219 |  |  | $ | 80.86 |

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- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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