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Fair Value - Schedule of Reconciliation of the Fair Value of Investments (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2026 | Dec. 31, 2025
Schedule of Reconciliation of the Fair Value of Investments [Line Items] |  |  |  |  |
Balance |  | $ 251.7 | [1] | $ 260.9 | [2]
Net realized (losses)/gains included in earnings |  | (30.7) | [1] | (16.8) | [2]
Net unrealized appreciation/(depreciation) included in earnings |  | 1.1 | [1] | (24.3) | [2]
Accretion of discounts |  | 1.0 | [1] | 2.9 | [2]
Purchases |  | 15.8 | [1] | 92.1 | [2]
Repayments and sales |  | (0.4) | [1] | (58.4) | [2]
Transfers between asset classes | [1] |  |  |  |
Reductions to CLO Equity cost value |  | (3.9) | [1],[3] | (7.7) | [2],[4]
PIK income |  | 0.8 | [1] | 3.2 | [2]
Transfers in and/or (out) of level 3 |  |  | [1] |  | [2]
Balance | [1] | 235.4 |  | 251.7 |
Net change in unrealized depreciation on Level 3 investments still held |  | (29.3) | [1] | (43.4) | [2]
Senior Secured Notes [Member] |  |  |  |  |
Schedule of Reconciliation of the Fair Value of Investments [Line Items] |  |  |  |  |
Balance |  | 147.3 | [2] | 150.7 |
Net realized (losses)/gains included in earnings |  | (12.6) |  | (14.4) |
Net unrealized appreciation/(depreciation) included in earnings |  | 2.1 |  | 5.0 |
Accretion of discounts |  | 1.0 |  | 2.9 |
Purchases |  | 12.9 |  | 57.9 |
Repayments and sales |  | (0.4) |  | (57.9) |
Transfers between asset classes |  | (0.1) |  |  |
Reductions to CLO Equity cost value |  |  | [3] |  | [4]
PIK income |  | 0.7 |  | 3.2 |
Transfers in and/or (out) of level 3 |  |  |  |  |
Balance |  | 150.8 | [1] | 147.3 | [2]
Net change in unrealized depreciation on Level 3 investments still held |  | (10.1) |  | (11.3) |
Equity and Other Investments [Member] |  |  |  |  |
Schedule of Reconciliation of the Fair Value of Investments [Line Items] |  |  |  |  |
Balance |  | 9.4 | [2] | 5.6 |
Net realized (losses)/gains included in earnings |  |  |  | 0.4 |
Net unrealized appreciation/(depreciation) included in earnings |  | (0.1) |  | (0.2) |
Accretion of discounts |  |  |  |  |
Purchases |  | 3.0 |  | 4.0 |
Repayments and sales |  |  |  | (0.5) |
Transfers between asset classes |  | 0.1 |  |  |
Reductions to CLO Equity cost value |  |  | [3] |  | [4]
PIK income |  | 0.1 |  |  |
Transfers in and/or (out) of level 3 |  |  |  |  |
Balance |  | 12.4 | [1] | 9.4 | [2]
Net change in unrealized depreciation on Level 3 investments still held |  | (0.1) |  | (0.1) |
CLO Equity [Member] |  |  |  |  |
Schedule of Reconciliation of the Fair Value of Investments [Line Items] |  |  |  |  |
Balance |  | 95.1 | [2] | 104.6 |
Net realized (losses)/gains included in earnings |  | (18.2) |  | (2.8) |
Net unrealized appreciation/(depreciation) included in earnings |  | (0.9) |  | (29.1) |
Accretion of discounts |  |  |  |  |
Purchases |  |  |  | 30.2 |
Repayments and sales |  |  |  |  |
Transfers between asset classes |  |  |  |  |
Reductions to CLO Equity cost value |  | (3.9) | [3] | (7.7) | [4]
PIK income |  |  |  |  |
Transfers in and/or (out) of level 3 |  |  |  |  |
Balance |  | 72.2 | [1] | 95.1 | [2]
Net change in unrealized depreciation on Level 3 investments still held |  | $ (19.1) |  | $ (32.0) |
[1] | Totals may not sum due to rounding.
[2] | Totals may not sum due to rounding.
[3] | Reduction to CLO equity cost value of approximately $3.9 million represented the distributions received, or entitled to be received, on the Company’s investments held in CLO equity subordinated and income notes of approximately $7.1 million, plus the amortization of cost of the Company’s CLO fee notes of approximately $38,000, less the effective yield interest income recognized on the Company’s CLO equity subordinated and income notes of approximately $3.2 million.
[4] | Reduction to CLO equity cost value of approximately $7.7 million represented the distributions received, or entitled to be received, on the Company’s investments held in CLO equity subordinated and income notes of approximately $24.1 million, plus the amortization of cost of the Company’s CLO fee notes of approximately $57,000, less the effective yield interest income recognized on the Company’s CLO equity subordinated and income notes of approximately $16.5 million.

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