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Discontinued Operations - Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Discontinued Operations and Disposal Groups [Abstract] |  |  |
Other assets |  | $ 22 | $ 104
Total current assets |  | 22 | 104
Property, plant and equipment, net | [1] | 81 | 81
Other assets |  |  | 36
Total long-term assets |  | 81 | 117
Total assets |  | 103 | 221
Accounts payable |  | 4 | 8
Accrued expenses and other liabilities |  | 150 | 169
Environmental liabilities |  | 744 | 817
Total current liabilities |  | 898 | 994
Closure liabilities |  | 142 | 134
Environmental liabilities |  | 110 | 110
Total long-term liabilities |  | 252 | 244
Total liabilities |  | $ 1,150 | $ 1,238
[1] | Net of accumulated depreciation of $10,000 for each period presented.

X
- Definition Amount classified as current assets attributable to discontinued operations not held for sale. + References No definition available. + Details
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- Definition Amount classified as environmental liabilities attributable to discontinued operations not held for sale. + References No definition available. + Details
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- Definition Amount classified as accounts payable and accrued liabilities attributable to discontinued operations not held for sale. + References No definition available. + Details
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- Definition Represents closure liabilities of discontinued operations not held for sale. + References No definition available. + Details
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