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Derivatives (Narrative) (Details) |  |  | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 01, 2022 | Sep. 01, 2017 | Mar. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Sep. 29, 2022 USD ($) | Mar. 01, 2019
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |
Net broker receivables |  |  |  | $ 10,900,000 | $ 4,000,000 |  |
Margin deposit assets |  |  |  | 5,700,000 | $ 3,800,000 |  |
Increase in variation margin deposits outstanding |  |  | $ 200,000 | $ 5,200,000 |  |  |
Embedded Derivative Financial Instruments |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |
Embedded derivative liability |  |  |  |  |  | $ 101,800,000 |
Class A Convertible Preferred Units |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |
Threshold trading days to notify holders | 30 days | 30 days |  |  |  |  |
Reset rate | 10.75% |  |  | 11.24% |  | 11.24% |
Basis spread |  |  |  |  |  |  | 0.0200
Percentage below issue price | 110.00% |  |  |  |  |  |
Class A Convertible Preferred Units | LIBOR Rate |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |
Reset rate |  |  |  |  |  | 3.74% |
Basis spread | 0.0750 |  |  |  |  | 750 |

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