Investments - Schedule of Loan Exit Fees Receivable (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total Exit Fees Receivable | $ 55.4 | $ 53.1 |
| Included within debt investment cost | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total Exit Fees Receivable | 49.5 | 48.6 |
| Deferred receivable related to expired commitments | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total Exit Fees Receivable | $ 5.9 | $ 4.5 |