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Equity Compensation Plans (Tables) | 9 Months Ended
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Feb. 28, 2022
Summary of Stock Option Activity | A summary of stock option activity during the nine months ended February 28, 2022 follows:
|  |  |  |  | Weighted- |
|  |  |  |  | Average |
(Options in thousands) |  | Shares |  |  | Exercise Price |
Options outstanding June 1, 2021 |  |  | 2,957 |  |  | $ | 30.38 |
Granted |  |  | 393 |  |  |  | 40.93 |
Exercised |  |  | (276 | ) |  |  | 22.69 |
Forfeited |  |  | (27 | ) |  |  | 31.18 |
Options outstanding February 28, 2022 |  |  | 3,047 |  |  | $ | 32.43 |
Summary of Fair Value of Stock Options Granted Estimated Weighted-Average Assumptions | The fair value of stock options granted was estimated using the following weighted-average assumptions.
|  | FY 2022 |  | FY 2021
Risk-free interest rate |  | 0.4% |  | 0.2%
Expected dividend yield |  | 0.0% |  | 0.0%
Expected stock price volatility |  | 32.8% |  | 31.3%
Expected option life |  | 3.12 years |  | 3.25 years
Restricted Stock Units (RSUs) [Member] |
Schedule of Nonvested Restricted Stock Units Activity |
|  |  |  |  | Weighted- |
|  |  |  |  | Average |
(Options in thousands) |  | Shares |  |  | Fair Value |
RSUs outstanding June 1, 2021 |  |  | 121 |  |  | $ | 34.21 |
Granted |  |  | 120 |  |  |  | 40.91 |
Released |  |  | (25 | ) |  |  | 34.24 |
Forfeited |  |  | (4 | ) |  |  | 35.61 |
RSUs outstanding February 28, 2022 |  |  | 212 |  |  | $ | 37.98 |

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- Definition Tabular disclosure of the total intrinsic value of options exercised (or share units converted), share-based liabilities paid, and the total fair value of shares vested during the year. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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