Stock Incentive Plan - Weighted Average Assumptions (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Weighted average grant-date fair value (in dollars per share) | $ 18.36 | $ 14.79 | |
| Employee Stock Option | |||
| Weighted average assumptions under the Monte Carlo simulation model: | |||
| Expected dividend yield | 1.10% | 1.10% | |
| Expected stock price volatility | 28.90% | 24.10% | |
| Risk-free interest rate | 0.60% | 1.50% | |
| Expected life of awards (years) | 5 years 9 months 18 days | 5 years 10 months 24 days | |
| Performance Shares | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Weighted average grant-date fair value (in dollars per share) | $ 87.33 | $ 69.15 | $ 61.42 |
| Weighted average assumptions under the Monte Carlo simulation model: | |||
| Expected stock price volatility | 34.50% | 23.50% | 23.40% |
| Risk-free interest rate | 0.20% | 1.40% | 2.50% |
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- References No definition available.
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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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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