Maintenance rights and lease premium, net - Schedule of Movements in Maintenance Rights (Details) - Maintenance Rights - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Finite-lived Intangible Assets [Roll Forward] | ||
| Maintenance rights at beginning of period | $ 1,669,742 | $ 2,099,513 |
| EOL and MR contract maintenance rights expense | (71,103) | (144,726) |
| MR contract maintenance rights write-off due to maintenance liability release | (19,544) | (38,525) |
| EOL contract maintenance rights write-off due to cash receipt | (67,412) | (159,682) |
| EOL and MR contract maintenance rights write-off due to sale of aircraft | (175,243) | (86,838) |
| Maintenance rights at end of period | $ 1,336,440 | $ 1,669,742 |