Intangible Assets and Deferred Charges - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands |
Sep. 30, 2021 |
Dec. 31, 2020 |
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| Goodwill and Intangible Assets Disclosure [Abstract] | ||
| Intangible assets, gross | $ 30,866 | $ 30,866 |
| Accumulated amortization of intangible assets | (21,481) | (19,440) |
| Intangible assets, net | $ 9,385 | $ 11,426 |
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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