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Commitments and Contingencies (Details) $ in Millions |  | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 16, 2022 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Mar. 31, 2023 USD ($) | Jan. 30, 2023 USD ($) | Oct. 03, 2022 USD ($) | Feb. 18, 2022 advisor cause
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Rental expense |  | $ 1.6 | $ 1.6 | $ 4.9 | $ 5.0 |  |  |  |
Potential gross capital commitments |  | 49.4 |  | 49.4 |  | $ 61.1 |  |  |
Capital funding commitment reserves |  | $ 0.1 |  | $ 0.1 |  |  |  |  |
Portfolio percentage of unfunded commitment |  | 90.00% |  | 90.00% |  |  |  |  |
Bayati Action |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Complaint filing period |  |  |  | 20 days |  |  |  |  |
Paul Capital Advisors Lawsuit |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Number of trust advisors | advisor |  |  |  |  |  |  |  |  | 2
Number of new causes of action | cause |  |  |  |  |  |  |  |  | 6
Maximum potential negative impact |  |  |  |  |  |  |  | $ 350.0 |
Private Arbitration |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Damages sought | $ 36.3 |  |  |  |  |  |  |  |
Chapter 11 Cases | Minimum |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Maximum potential negative impact |  |  |  |  |  |  | $ 155.0 |  |
Chapter 11 Cases | Maximum |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Maximum potential negative impact |  |  |  |  |  |  | 382.0 |  |
Official Committee of Bondholders Motion |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Maximum potential negative impact |  |  |  |  |  |  | $ 500.0 |  |

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