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v3.21.2

Employee and Non-Employee Benefit Plans (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 USD ($) shares | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) plan shares | Sep. 30, 2020 USD ($) shares | Dec. 31, 2020 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of active equity-based compensation plans | plan |  |  | 2 |  |
Gain (loss) on deferred compensation plan investments | $ | $ (15) | $ 185 | $ 261 | $ 352 |
EDC plan investments | $ | 3,555 |  | 3,555 |  | $ 2,007
EDC plan current liabilities | $ | 897 |  | 897 |  |
EDC plan noncurrent liabilities | $ | $ 3,155 |  | $ 3,155 |  | $ 3,140
The 2014 Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares approved (in shares) | 1,500,000 |  | 1,500,000 |  |
The Director's Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares approved (in shares) | 300,000 |  | 300,000 |  |
Restricted Stock Units (RSUs), granted |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
RSUs outstanding (in shares) | 168,074 |  | 168,074 |  |
Participating securities (in shares) |  |  | 163,024 | 115,399 |
Restricted Stock Units (RSUs), granted | The 2014 Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grants in period (in shares) |  |  | 516,861 |  |
Restricted Stock Units (RSUs), granted | The Director's Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grants in period (in shares) |  |  | 121,557 |  |

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