Investments - SLP's portfolio (Details) $ in Thousands |
Mar. 31, 2026
USD ($)
Borrower
|
Dec. 31, 2025
USD ($)
Borrower
|
|---|---|---|
| Concentration Risk [Line Items] | ||
| Investments at fair value | $ 2,470,798 | $ 2,508,441 |
| Bain Capital Senior Loan Program, LLC | ||
| Concentration Risk [Line Items] | ||
| Investments at fair value | $ 1,599,077 | $ 1,536,252 |
| Weighted average yield on investments | 9.40% | 9.40% |
| Number of borrowers in ISLP | Borrower | 106 | 99 |
| Unfunded commitments | $ 991 | $ 4,109 |
| Bain Capital Senior Loan Program, LLC | Investments Operations [Member] | Investment Concentration Risk [Member] | Largest Investee [Member] | ||
| Concentration Risk [Line Items] | ||
| Investments at fair value | 42,119 | 42,227 |
| Bain Capital Senior Loan Program, LLC | Investments Operations [Member] | Investment Concentration Risk [Member] | Five Largest Investee [Member] | ||
| Concentration Risk [Line Items] | ||
| Investments at fair value | $ 188,747 | $ 188,219 |
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- Definition The amount of unfunded commitments to purchase investments. 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/2009/role/commonPracticeRef
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- Definition Weighted average yield of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Number of borrowers with Federal Home Loan Bank (FHLBank) advances outstanding greater than one billion U.S. dollars. No definition available.
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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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