Stock-Based Payments - Stock Options (Details) - USD ($) |
6 Months Ended | |
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Jun. 30, 2019 |
Jun. 30, 2018 |
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| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
| Unrecognized compensation costs | $ 16,300,000 | |
| Period in which compensation costs will be recognized | 2 years 10 months 24 days | |
| Granted and outstanding (in shares) | 1,096,500 | |
| Intrinsic value of options exercised | $ 9,800 | $ 800,000 |
| Performance-based stock options | ||
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
| Unrecognized compensation costs | $ 900,000 | |
| Period in which compensation costs will be recognized | 3 years 3 months 18 days | |
| Advisor | Performance-based stock options | ||
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
| Unrecognized compensation costs | $ 300,000 | |
| Period in which compensation costs will be recognized | 7 years 2 months 12 days | |
| Granted and outstanding (in shares) | 75,000 | |
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- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the 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 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 Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Details
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- Details
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