Investments - Schedule of Loan Exit Fees Receivable (Details) - USD ($) $ in Millions |
Jun. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total Exit Fees Receivable | $ 42.0 | $ 40.2 |
| Included within debt investment cost | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total Exit Fees Receivable | 36.8 | 35.9 |
| Deferred receivable related to expired commitments | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total Exit Fees Receivable | $ 5.2 | $ 4.3 |