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Restructuring and Impairment Charges (Narrative) (Details) $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 08, 2020 USD ($) Items | Sep. 10, 2020 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) $ / acre ft | Dec. 31, 2019 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment charges |  |  | $ 6,530 | $ 18,325 |
Impairment and loss on right of use asset |  |  |  | 17,540 |
Non-cash impairment charges |  |  |  | 8,978 |
Gain related to lease termination |  |  |  | 15,234 |
Lessee, Operating Lease, Discount Rate |  |  | 12.90% |  |
Gain (Loss) on Termination of Lease |  |  |  | 15,234 |
Number of renewal options | Items | 1 |  |  |  |
Extension term | 1 month |  |  |  |
Impairment charge |  |  |  | 18,951 |
Restructuring Reserve |  |  | $ 163 | 1,847 | $ 1,006
Restructuring and impairment charges |  |  | $ 6,530 | $ 18,325 |
Employee Severance [Member] | Shoals Facility [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment charges |  | $ 6,578 |  |  |
Facility Closing [Member] | Shoals Facility [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment charges |  | 26,576 |  |  |
Gain related to lease termination | $ 15,234 |  |  |  |
Fair value of property, plant and equipment | 10,148 |  |  |  |
Lessee, Operating Sublease, Pricing | $ / acre ft |  |  |  | 3.5 |
Lessee, Operating Sublease, Remaining Term |  |  |  | 75 months |
Lessee, Operating Lease, Discount Rate |  |  |  | 6.50% |
Gain (Loss) on Termination of Lease | $ 15,234 |  |  |  |
Right Of Use Asset [Member] | Facility Closing [Member] | Shoals Facility [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Non-cash impairment charges |  | 17,540 |  |  |
Property, Plant And Equipment At Facility[Member] | Facility Closing [Member] | Shoals Facility [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Non-cash impairment charges |  | $ 9,036 |  |  |

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