Stock-based Compensation - Stock Option Narrative (Details) - 2014 Plan |
12 Months Ended |
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Dec. 31, 2018 | |
| Minimum | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Purchase price of common stock percentage | 100.00% |
| Expiration period | 4 years |
| Maximum | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Expiration period | 10 years |
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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 Period from grant date that an equity-based award expires, 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 Purchase price of common stock expressed as a percentage of its fair value. No definition available.
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- Details
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