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STOCK OPTION PLANS (Tables) | 12 Months Ended
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Mar. 31, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Weighted-Average Assumptions Used to Value Option Awards | The weighted-average assumptions used in the Black-Scholes model to value the option awards in fiscal 2022 and 2021 are as follows:
|  | 2022 |  |  | 2021 |
Dividend Yield |  |  | 0.8 | % |  |  | 0.0 | %
Expected Volatility |  |  | 38.4 | % |  |  | 37.9 | %
Risk-Free Interest Rate |  |  | 1.00 | % |  |  | 0.44 | %
Expected Life |  | 6.0 years |  |  | 6.0 years |
Stock Option Activity | The following table shows stock option activity for the years presented:
|  | For the Years Ended March 31, |
|  | 2022 |  |  | 2021 |  |  | 2020 |
|  | Number of Shares |  |  | Weighted- Average Exercise Price |  |  | Number of Shares |  |  | Weighted- Average Exercise Price |  |  | Number of Shares |  |  | Weighted- Average Exercise Price |
Outstanding Options at Beginning of Year |  |  | 708,501 |  |  | $ | 83.85 |  |  |  | 1,160,091 |  |  | $ | 80.36 |  |  |  | 1,042,925 |  |  | $ | 76.88 |
Granted |  |  | 11,316 |  |  | $ | 140.42 |  |  |  | 187,121 |  |  | $ | 61.92 |  |  |  | 187,375 |  |  | $ | 91.58 |
Exercised |  |  | (247,578 | ) |  | $ | 86.97 |  |  |  | (623,617 | ) |  | $ | 70.57 |  |  |  | (62,326 | ) |  | $ | 88.28 |
Cancelled |  |  | (15,390 | ) |  | $ | 76.63 |  |  |  | (15,094 | ) |  | $ | 92.51 |  |  |  | (7,883 | ) |  | $ | 102.69 |
Outstanding Options at End of Year |  |  | 456,849 |  |  | $ | 83.81 |  |  |  | 708,501 |  |  | $ | 83.85 |  |  |  | 1,160,091 |  |  | $ | 80.36 |
Options Exercisable at End of Year |  |  | 314,624 |  |  |  |  |  |  | 416,817 |  |  |  |  |  |  | 868,081 |  |  |  |
Weighted-Average Fair Value of Options Granted During the Year |  |  |  |  | $ | 49.18 |  |  |  |  |  | $ | 22.68 |  |  |  |  |  | $ | 27.35 |
Stock Options Outstanding | The following table summarizes information about stock options outstanding at March 31, 2022:
|  | Options Outstanding |  |  | Options Exercisable |
Range of Exercise Prices |  | Number of Shares Outstanding |  |  | Weighted- Average Remaining Contractual Life |  |  | Weighted- Average Exercise Price |  |  | Number of Shares Outstanding |  |  | Weighted- Average Exercise Price |
$33.69 - $37.34 |  |  | 5,800 |  |  |  | 0.20 |  |  | $ | 35.46 |  |  |  | 5,800 |  |  | $ | 35.46 |
$59.32 - $81.56 |  |  | 179,192 |  |  |  | 7.15 |  |  | $ | 63.43 |  |  |  | 92,382 |  |  | $ | 65.88 |
$87.37 - $93.03 |  |  | 156,131 |  |  |  | 6.69 |  |  | $ | 91.44 |  |  |  | 113,803 |  |  | $ | 91.40 |
$99.37 - $143.09 |  |  | 115,726 |  |  |  | 6.23 |  |  | $ | 107.49 |  |  |  | 102,639 |  |  | $ | 105.81 |
|  |  | 456,849 |  |  |  | 6.67 |  |  | $ | 83.81 |  |  |  | 314,624 |  |  | $ | 87.57 |
Summary of Activity for Nonvested Restricted Shares | The following table summarizes the activity for nonvested restricted shares during the fiscal years ended March 31, 2022, 2021, and 2020:
|  | For the Years Ended March 31, |
|  | 2022 |  |  | 2021 |  |  | 2020 |
|  | Number of Shares |  |  | Weighted- Average Grant Date Fair Value |  |  | Number of Shares |  |  | Weighted- Average Grant Date Fair Value |  |  | Number of Shares |  |  | Weighted- Average Grant Date Fair Value |
Nonvested Restricted Stock at Beginning of Year |  |  | 267,090 |  |  | $ | 62.56 |  |  |  | 233,120 |  |  | $ | 75.35 |  |  |  | 300,115 |  |  | $ | 78.94 |
Granted |  |  | 113,414 |  |  | $ | 139.91 |  |  |  | 179,377 |  |  | $ | 63.83 |  |  |  | 118,292 |  |  | $ | 90.08 |
Vested |  |  | (116,507 | ) |  | $ | 87.47 |  |  |  | (136,280 | ) |  | $ | 78.89 |  |  |  | (169,347 | ) |  | $ | 92.98 |
Cancelled |  |  | (5,218 | ) |  | $ | 75.10 |  |  |  | (9,127 | ) |  | $ | 71.46 |  |  |  | (15,940 | ) |  | $ | 58.64 |
Nonvested Restricted Stock at End of Year |  |  | 258,779 |  |  | $ | 102.45 |  |  |  | 267,090 |  |  | $ | 62.56 |  |  |  | 233,120 |  |  | $ | 75.35 |

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