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Stockholders' Equity - Summary of Certain Information With Respect to the Performance Share Awards (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Long Term Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Fair Value         $ 6,091
Accrual         5,069
Expense $ 119 $ 2,392 $ 725 $ 3,770  
Amended Long Term Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Fair Value         10,401
Expense 867 403 1,734 805  
Performance Shares | Performance Shares Period1 | Long Term Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Fair Value         6,091
Accrual         5,069
Expense 119 1,295 725 1,886  
Performance Shares | Performance Shares Period2 | Long Term Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Fair Value         0
Accrual         0
Expense 0 1,097 0 1,884  
Performance Shares | Performance Shares Period3 | Amended Long Term Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Fair Value         4,829
Expense 402 403 804 805  
Performance Shares | Performance Shares Period4 | Amended Long Term Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Fair Value         $ 5,572
Expense $ 465 $ 0 $ 930 $ 0