Stock-Based Compensation - Stock Option Assumptions and Methodology (Details) - $ / shares |
12 Months Ended | |
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Dec. 31, 2020 |
Dec. 31, 2018 |
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| Monte Carlo simulation | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology | ||
| Expected dividend yield, Monte Carlo simulation | 0.00% | |
| Risk-free interest rate, Monte Carlo simulation | 1.56% | |
| Expected volatility rate, Monte Carlo simulation | 28.57% | |
| Expected term, Monte Carlo simulation | 2 years 11 months 12 days | |
| Grant date fair value, Monte Carlo simulation | 24.11 | |
| Stock Option | Black-Sholes option pricing model | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology | ||
| Expected term (in years) | 5 years 9 months | |
| Expected volatility | 26.38% | |
| Risk-free interest rate | 2.86% | |
| Expected dividend yield | 0.00% | |
| Weighted average grant date fair value of options granted (usd per share) | $ 5.47 | |
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- Definition Performance Stock Unit, Fair Value Assumptions, Expected Dividend Rate No definition available.
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- Definition Performance Stock Unit, Fair Value Assumptions, Expected Term No definition available.
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- Definition Performance Stock Unit, Fair Value Assumptions, Expected Volatility Rate No definition available.
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- Definition Performance Stock Unit, Fair Value Assumptions, Risk Free Interest Rate No definition available.
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- Definition Performance Stock Units, Grants In Period, Weighted Average Grant Date Fair Value No definition available.
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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 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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