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v3.21.2

Stock-based Employee Compensation, Stock Option Plans, and Deferred Compensation Plan for Directors - Stock Options Issued (Details) |  |  | 9 Months Ended
--- | --- | --- | ---
May 07, 2021 $ / shares | Apr. 24, 2020 $ / shares | Sep. 30, 2021 $ / shares
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] |  |  |
Exercise price (in usd per share) |  |  | $ 41.82
Directors |  |  |
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] |  |  |
Exercise price (in usd per share) | $ 43.89 | $ 50.00 |
Volatility | 0.297 | 0.258 |
Expected life (years) | 5 years | 5 years |
Assumed yield | 4.96% | 3.80% |
Risk-free rate | 0.77% | 0.36% |
Officers |  |  |
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] |  |  |
Exercise price (in usd per share) | $ 43.89 | $ 50.00 |
Volatility | 0.275 | 0.240 |
Expected life (years) | 7 years | 7 years |
Assumed yield | 4.97% | 3.85% |
Risk-free rate | 1.24% | 0.51% |

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- Definition Share Based Compensation Arrangement by Share Based Payment Award, Fair Value Assumptions, Volatility + References No definition available. + Details
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- Definition Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] + References No definition available. + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + 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 (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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 (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References No definition available. + Details
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + 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 (f)(2)(i) -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 S99 -Paragraph 1 -Subparagraph (SAB Topic 14.D.2) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 + Details
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