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Other intangibles, net (Tables) | 12 Months Ended
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Dec. 31, 2024
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, 2024 and 2023:
| As of December 31,
| 2024 |  | 2023
Maintenance rights | $ | 1,669,742 |  |  | $ | 2,099,513 |
Lease premium, net | 460,251 |  |  | 630,449 |
| $ | 2,129,993 |  |  | $ | 2,729,962 |
Movements in maintenance rights during the years ended December 31, 2024 and 2023 were as follows:
| Year Ended December 31,
| 2024 |  | 2023
Maintenance rights at beginning of period | $ | 2,099,513 |  |  | $ | 2,540,286 |
EOL and MR contract maintenance rights expense | (144,726) |  |  | (207,552) |
MR contract maintenance rights write-off due to maintenance liability release | (38,525) |  |  | (17,747) |
EOL contract maintenance rights write-off due to cash receipt | (159,682) |  |  | (102,940) |
EOL and MR contract maintenance rights write-off due to sale of aircraft | (86,838) |  |  | (112,534) |
Maintenance rights at end of period | $ | 1,669,742 |  |  | $ | 2,099,513 |
The following tables present details of lease premium assets and related accumulated amortization as of December 31, 2024 and 2023:
| As of December 31, 2024
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Lease premium | $ | 907,995 |  |  | $ | (447,744) |  |  | $ | 460,251 |
| As of December 31, 2023
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Lease premium | $ | 1,002,293 |  |  | $ | (371,844) |  |  | $ | 630,449 |
Other intangibles consisted of the following as of December 31, 2024 and 2023:
|  | As of December 31,
|  | 2024 |  | 2023
Customer relationships, net |  | $ | 134,883 |  |  | $ | 156,059 |
Other intangible assets |  | 4,783 |  |  | 7,108 |
|  | $ | 139,666 |  |  | $ | 163,167 |
The following tables present details of customer relationships and related accumulated amortization as of December 31, 2024 and 2023:
| As of December 31, 2024
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Customer relationships | $ | 360,000 |  |  | $ | (225,117) |  |  | $ | 134,883 |
| As of December 31, 2023
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Customer relationships | $ | 360,000 |  |  | $ | (203,941) |  |  | $ | 156,059 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 + Details
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