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Income Taxes - Other details (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2020
Income Taxes |  |  |
Income tax benefit | $ 1,640 | $ 1,425 |
Effective income tax rate reconciliation, at federal statutory income tax rate, percent | 21.00% | 21.00% |
Effective income tax rate reconciliation, state and local income taxes, percent | 2.66% | 3.22% |
Deferred tax assets, valuation allowance | $ 28,351 | $ 24,562 |
Effective Income Tax Rate Reconciliation, Percent | 8.20% | 6.75% |
Undistributed Earnings of Foreign Subsidiaries | $ 0 |  |
Tax Year 2018 |  |  |
Income Taxes |  |  |
Operating loss carryforwards | $ 228,300 |  |
Operating loss carryforwards expire date | 2037 |  |
Limitation on operating loss carryforwards | $ 155,600 |  | $ 155,600
Foreign |  |  |
Income Taxes |  |  |
Operating loss carryforwards | 25,200 |  |
Federal |  |  |
Income Taxes |  |  |
Operating loss carryforwards | 72,700 |  |
Deferred tax assets, valuation allowance | 28,400 |  |
Change in valuation allowance | 3,800 |  |
V C N | Foreign |  |  |
Income Taxes |  |  |
Operating loss carryforwards | $ 25,200 |  |
Scenario, Plan |  |  |
Income Taxes |  |  |
Effective income tax rate reconciliation, at federal statutory income tax rate, percent | 21.00% |  |

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