Subsequent Events - 2011 Plan Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Feb. 05, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Subsequent Event [Line Items] | ||||
| Options granted, weighted average fair value (in dollars per share) | $ 6.11 | $ 6.44 | $ 6.41 | |
| Compensation expense | $ 2.1 | $ 0.8 | $ 0.6 | |
| Stock Options | 2011 Plan | Subsequent Event | ||||
| Subsequent Event [Line Items] | ||||
| Granted (in shares) | 123,500 | |||
| Granted (in dollars per share) | $ 12.995 | |||
| Options granted, weighted average fair value (in dollars per share) | $ 4.53 | |||
| Risk free interest rate | 1.66% | |||
| Expected life | 10 years | |||
| Expected volatility rate | 35.10% | |||
| Expected dividend yield | 1.79% | |||
| Compensation expense | $ 0.6 | |||
| Maximum | Stock Options | 2011 Plan | ||||
| Subsequent Event [Line Items] | ||||
| Annual vesting rate | 33.00% | |||
| Maximum | Stock Options | 2011 Plan | Subsequent Event | ||||
| Subsequent Event [Line Items] | ||||
| Annual vesting rate | 33.00% | |||
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Annual Award Vesting Rights, Percentage No definition available.
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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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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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. No definition available.
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