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Income Taxes - Tax Attributes and Valuation Allowances (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Operating Loss Carryforwards |  |  |
Balance at beginning of period, Valuation allowance | $ (1,177) | $ (607) | $ (735)
Additions to valuation allowance | (455) | (742) | (88)
Reductions to valuation allowance | 170 | 172 | 216
Balance at end of period, Valuation allowance | (1,462) | (1,177) | $ (607)
Deferred tax assets net | 245,822 | 213,543 |
ECOTEC |  |  |
Operating Loss Carryforwards |  |  |
Balance at end of period, Valuation allowance | (900) |  |
Domestic |  |  |
Operating Loss Carryforwards |  |  |
Operating loss carryforwards | 632,300 |  |
Operating loss carryforward not subject to expiration | 629,400 |  |
Tax credit carryforward | 3,000 |  |
Interest expense limitation carryforwards | 185,800 |  |
State |  |  |
Operating Loss Carryforwards |  |  |
Operating loss carryforwards | 261,500 |  |
Operating loss carryforward not subject to expiration | 162,900 |  |
NOL valuation allowance | 500 | $ 500 |
Interest expense limitation carryforwards | $ 59,400 |  |

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- Definition The amount of the interest expense limitation carryforwards included in our interest expense limitation deferred tax asset that are available to offset future taxable income. + References No definition available. + Details
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
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