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Share Based Compensation - Share-based Compensation Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | $ 4,459 | $ 24,276 | $ 17,912
Performance units |  | 4,774 | 2,574
Total share and incentive-based compensation expense |  | 29,050 | 20,486
Less: Capitalized compensation expense | (204) | (1,037) | (2,521)
Share and incentive-based compensation expense, net | $ 4,255 | 28,013 | 17,965
Accelerated vesting, per unit (in shares) | 1 |  |
Recurring Compensation Expense |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | $ 3,469 | 5,354 | 16,087
Performance units |  | 756 | 2,574
Total share and incentive-based compensation expense |  | 6,110 | 18,661
Less: Capitalized compensation expense | (204) | (482) | (2,521)
Share and incentive-based compensation expense, net | 3,265 | 5,628 | 16,140
Executive Terminations |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 490 | 9,196 | 1,825
Performance units |  | 2,151 | 0
Total share and incentive-based compensation expense |  | 11,347 | 1,825
Less: Capitalized compensation expense | 0 | 0 | 0
Share and incentive-based compensation expense, net | 490 | 11,347 | 1,825
Reduction in Force |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 500 | 3,935 | 0
Performance units |  | 558 | 0
Total share and incentive-based compensation expense |  | 4,493 | 0
Less: Capitalized compensation expense | 0 | 0 | 0
Share and incentive-based compensation expense, net | 500 | 4,493 | 0
Accelerated Vesting |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 0 | 5,791 | 0
Performance units |  | 1,309 | 0
Total share and incentive-based compensation expense |  | 7,100 | 0
Less: Capitalized compensation expense | 0 | (555) | 0
Share and incentive-based compensation expense, net | 0 | 6,545 | 0
Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 3,223 | 21,833 | 16,556
Restricted Stock | Recurring Compensation Expense |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 2,526 | 4,735 | 14,731
Restricted Stock | Executive Terminations |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 197 | 8,140 | 1,825
Restricted Stock | Reduction in Force |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 500 | 3,777 | 0
Restricted Stock | Accelerated Vesting |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 0 | 5,181 | 0
Performance Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 563 | 2,443 | 1,356
Performance Shares | Recurring Compensation Expense |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 282 | 619 | 1,356
Performance Shares | Executive Terminations |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 281 | 1,056 | 0
Performance Shares | Reduction in Force |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 0 | 158 | 0
Performance Shares | Accelerated Vesting |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 0 | $ 610 | $ 0
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 673 |  |
Stock Options | Recurring Compensation Expense |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 661 |  |
Stock Options | Executive Terminations |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 12 |  |
Stock Options | Reduction in Force |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | 0 |  |
Stock Options | Accelerated Vesting |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense | $ 0 |  |

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