v3.25.4

Maintenance rights and lease premium, net (Tables) | 12 Months Ended
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Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Maintenance Rights and Lease Premiums | Maintenance rights and lease premium, net consisted of the following as of December 31, 2025 and 2024:
| As of December 31,
| 2025 |  | 2024
Maintenance rights | $ | 1,336,440 |  |  | $ | 1,669,742 |
Lease premium, net | 340,967 |  |  | 460,251 |
| $ | 1,677,407 |  |  | $ | 2,129,993 |
The following tables present details of lease premium assets and related accumulated amortization as of December 31, 2025 and 2024:
| As of December 31, 2025
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Lease premium | $ | 790,042 |  |  | $ | (449,075) |  |  | $ | 340,967 |
| As of December 31, 2024
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Lease premium | $ | 907,995 |  |  | $ | (447,744) |  |  | $ | 460,251 |
Other intangibles consisted of the following as of December 31, 2025 and 2024:
|  | As of December 31,
|  | 2025 |  | 2024
Customer relationships, net |  | $ | 113,706 |  |  | $ | 134,883 |
Other intangible assets |  | 4,083 |  |  | 4,783 |
|  | $ | 117,789 |  |  | $ | 139,666 |
The following tables present details of customer relationships and related accumulated amortization as of December 31, 2025 and 2024:
| As of December 31, 2025
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Customer relationships | $ | 360,000 |  |  | $ | (246,294) |  |  | $ | 113,706 |
| As of December 31, 2024
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Customer relationships | $ | 360,000 |  |  | $ | (225,117) |  |  | $ | 134,883 |
Schedule of Movements in Maintenance Rights Intangible | Movements in maintenance rights during the years ended December 31, 2025 and 2024 were as follows:
| Year Ended December 31,
| 2025 |  | 2024
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 |
Schedule of Estimated Future Amortization Expense | As of December 31, 2025, the estimated future amortization expense for lease premium assets was as follows:
| Estimated amortization expense
2026 | $ | 103,099 |
2027 | 86,966 |
2028 | 72,877 |
2029 | 37,128 |
2030 | 25,740 |
Thereafter | 15,157 |
| $ | 340,967 |

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