Share-based Awards and Cash-based Awards - Summary of Incentive Compensation Expense Under Share-based Payment Arrangements (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Share-based compensation expense | $ 858 | $ 1,075 | $ 1,779 | $ 3,142 |
| Restricted Stock Units (RSUs) [Member] | ||||
| Share-based compensation expense | 587 | 927 | 1,263 | 2,854 |
| Performance Share Units [Member] | ||||
| Share-based compensation expense | 207 | 207 | ||
| Restricted Stock [Member] | ||||
| Share-based compensation expense | $ 64 | $ 148 | $ 309 | $ 288 |
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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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