Share-Based Compensation - Summary of Number of Performance RSUs Outstanding and Weighted-average Grant Date Fair Value of PSUs (Details) - Performance RSUs - $ / shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
|
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||||
| Number of Shares, Unvested, Beginning balance | 50,000 | |||
| Number of Shares, Granted | 0 | 0 | 1,079,000 | 50,000 |
| Number of Shares, Forfeited | (34,000) | |||
| Number of Shares, Unvested, Ending balance | 1,095,000 | 1,095,000 | ||
| Weighted Average grant date fair value per share, Unvested, Beginning balance | $ 8.21 | |||
| Weighted Average grant date fair value per share, Granted | 2.04 | |||
| Weighted Average grant date fair value per share, Forfeited | 2.58 | |||
| Weighted Average grant date fair value per share, Unvested, Ending balance | $ 2.30 | $ 2.30 | ||
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued 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
|
| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- 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.
|
| X | ||||||||||
- Details
|