Accrued underwriting expenses and other liabilities.

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- Definition

The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments).

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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- Definition

Amount of realized and unrealized gain (loss) on investment.

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- Definition

Amount of expense for investment management fee, including, but not limited to, expense in connection with research, selection, supervision, and custody of investment.

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- Definition

The cash outflow for the purchase of amounts due from customers, clients, lessees, borrowers, or others under the terms of its agreements therewith.

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- Definition

Amount of transactions with related party during the financial reporting period.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Related Party Transactions (Details) - USD ($) $ in Millions	2 Months Ended	3 Months Ended	11 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2024	Nov. 15, 2023	Dec. 31, 2024	Dec. 31, 2022
Related Party Transaction [Line Items]
Gain on investments	$ (0.3)		$ (22.7)	$ 20.0	$ (115.3)
Loans, at cost	144.8	$ 787.4		787.4
Unfunded Commitments	93.4	220.9		220.9
Accrued underwriting expenses and other liabilities	73.9	54.3		54.3
Private Loans
Related Party Transaction [Line Items]
Purchase of loans	0.0		$ 0.0	324.3	$ 0.0
Loans, at cost	$ 0.0	577.3		577.3
Related Party
Related Party Transaction [Line Items]
Purchase of loans				906.4
Gain on investments				28.2
Unfunded Commitments		218.6		218.6
Investment management fees				11.5
Accrued underwriting expenses and other liabilities		2.5		2.5
Related Party \| Private Loans
Related Party Transaction [Line Items]
Non-cash transaction, private loans		300.0		300.0
Loans, at cost		427.2		427.2
Related Party \| Other Investments
Related Party Transaction [Line Items]
Loans, at cost		305.4		305.4
Related Party \| Equity securities
Related Party Transaction [Line Items]
Loans, at cost		$ 270.3		$ 270.3