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Investment in Unconsolidated Affiliate (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 19, 2024 | Oct. 01, 2024 | Jun. 30, 2026 | Nov. 30, 2023 | Sep. 30, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024 | Apr. 30, 2022
Investments |  |  |  |  |  |  |  |  |
Investments in unconsolidated entities |  |  |  |  |  | $ 471 | $ 1,307 |  |
Equity in net loss of unconsolidated affiliate, net of tax |  |  |  |  |  | (483) |  |  |
FCG Holdco | Affiliated Entity |  |  |  |  |  |  |  |  |
Investments |  |  |  |  |  |  |  |  |
Equity in net loss of unconsolidated affiliate, net of tax |  |  |  |  | $ (300) | (500) |  |  |
ColdStream | FCG Holdco |  |  |  |  |  |  |  |  |
Investments |  |  |  |  |  |  |  |  |
Ownership interest, parent (as a percent) |  | 68.00% |  |  |  |  |  |  |
FCG Holdco |  |  |  |  |  |  |  |  |
Investments |  |  |  |  |  |  |  |  |
Number of authorized capital units |  | 1.0 |  |  |  |  |  |  |
Ownership interest, equity method (as a percent) |  | 32.00% |  |  |  |  |  |  |
Cost per unit (in dollars per share) |  | $ 0.001 |  |  |  |  |  |  |
Investments in unconsolidated entities |  |  |  |  | 100 | 500 |  |  |
Carrying value of investment |  |  |  |  | 200 | 200 |  | $ 200 |
Cumulative transaction costs |  |  |  |  | 200 | 200 |  | $ 200 |
Difference between entity's cumulative equity investment and proportionate share of the carrying value of investment |  |  |  |  | $ 200 | $ 200 |  |  |
Amortization period of basis difference |  | 20 years |  |  |  |  |  |  |
Ionada |  |  |  |  |  |  |  |  |
Investments |  |  |  |  |  |  |  |  |
Investments in unconsolidated entities | $ 1,200 |  |  | $ 3,800 |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  | 12.00% | 12.00% |  | 12.00% |
Carrying value of investment |  |  |  |  | $ 5,500 | $ 5,500 |  | $ 5,500 |
Cumulative transaction costs |  |  |  |  | 500 | 500 |  | 500 |
Carrying value of investment |  |  |  |  | $ 5,500 | $ 5,500 |  | $ 5,500 |
Ionada | Forecasted |  |  |  |  |  |  |  |  |
Investments |  |  |  |  |  |  |  |  |
Investments in unconsolidated entities |  |  | $ 6,100 |  |  |  |  |  |
Ownership interest (as a percent) |  |  | 24.00% |  |  |  |  |  |
ECOTEC |  |  |  |  |  |  |  |  |
Investments |  |  |  |  |  |  |  |  |
Total potential equity interest to be acquired (as a percent) |  |  |  |  |  |  |  |  | 25.00%
Ownership interest (as a percent) |  |  |  |  | 25.00% | 25.00% |  | 25.00% |

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