Income taxes - Summary of Book Purpose Amounts Arising from Permanent book/Tax Differences Related to Different Tax Treatment of Foreign Currency (Details) - USD ($) $ in Thousands |
8 Months Ended | 12 Months Ended | |
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Income Tax Disclosure [Abstract] | |||
| Accumulated net realized gain (loss) | $ 0 | $ 2,572 | $ 87 |
| Increase (Decrease) in undistributed net investment income | 110 | (2,350) | 238 |
| Total | $ 110 | $ 222 | $ 325 |