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Stock-Based Compensation - Stock-Based Compensation Expense, Net of Forfeitures (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | $ 2,074 | $ 264
Equity Classified Awards |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | 1,667 | 1,284
Restricted stock |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | 632 | 696
Market based RSUs |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | 773 | 427
Performance based RSUs |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | 256 | 161
Director grants |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | 6 | 0
Liability-classified awards |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | 407 | (1,020)
Market based RSUs |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | 113 | (1,019)
Performance based RSUs |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | 106 | (184)
Time vested RSUs |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | 162 | 149
Dividend equivalent units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total stock-based compensation expense, net of forfeitures | $ 26 | $ 34

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