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v3.20.4

Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2020
Payables and Accruals [Abstract] |
Schedule of Accrued Liabilities | Accrued liabilities consisted of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2020 |  | 2019
Accrued salaries and other benefits | ​ | $ | 16,332 | ​ | $ | 19,300
Accrued income and other taxes | ​ |  | 11,414 | ​ |  | 11,019
Accrued interest | ​ |  | 22,693 | ​ |  | 16,462
Derivative liability - current | ​ |  | 4,809 | ​ |  | 593
Other accrued liabilities | ​ |  | 21,745 | ​ |  | 20,471
Accrued liabilities | ​ | $ | 76,993 | ​ | $ | 67,845

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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