Investment Portfolio - Schedule of Balance Sheet Information for COPJV (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
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| Investment Company, Nonconsolidated Subsidiary [Line Items] | ||||||||||||||
| Investments, at fair value | $ 12,269.4 | [1],[2] | $ 13,008.6 | [3],[4] | ||||||||||
| Total assets | 12,825.0 | 13,729.0 | ||||||||||||
| Total liabilities | 7,551.0 | 7,880.0 | ||||||||||||
| Member’s equity | 5,274.0 | 5,849.0 | $ 6,546.0 | $ 6,622.0 | ||||||||||
| Credit Opportunities Partners JV, LLC | ||||||||||||||
| Investment Company, Nonconsolidated Subsidiary [Line Items] | ||||||||||||||
| Investments, at fair value | 4,792.2 | 5,058.0 | ||||||||||||
| Cash and other assets | 589.0 | 196.6 | ||||||||||||
| Total assets | 5,381.2 | 5,254.6 | ||||||||||||
| Debt | 3,009.2 | 2,764.9 | ||||||||||||
| Other liabilities | 214.2 | 240.6 | ||||||||||||
| Total liabilities | 3,223.4 | 3,005.5 | ||||||||||||
| Member’s equity | $ 2,157.8 | $ 2,249.1 | ||||||||||||
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- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. No definition available.
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value of investment in security owned. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liabilities classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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