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Investments in Other Entities and Noncontrolling Interest in a Subsidiary - NG Advantage (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025 | Oct. 14, 2014
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Loss attributable to noncontrolling interest | $ 182 | $ 168 | $ 297 | $ 232 |  |
NG Advantage |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership interest acquired |  |  |  |  |  | 53.30%
NG Advantage |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership interest after transaction (as a percent) |  |  | 93.30% |  |  |
Loss attributable to noncontrolling interest | 200 | $ 200 | $ 300 | $ 200 |  |
Investments carried at cost | $ 5,300 |  | $ 5,300 |  | $ 5,600 |

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