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Intangibles (Tables) | 12 Months Ended
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Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items] |
Schedule of movements in maintenance rights intangible | Movements in maintenance rights during the years ended December 31, 2021 and 2020 were as follows:
| Year Ended December 31,
| 2021 |  | 2020
Maintenance rights at beginning of period | $ | 642,825 |  |  | $ | 794,798 |
GECAS Transaction | 2,790,324 |  |  | — |
EOL and MR contract maintenance rights expense | (7,048) |  |  | (45,655) |
MR contract maintenance rights write-off due to maintenance liability release | (17,260) |  |  | (35,897) |
EOL contract maintenance rights write-off due to cash receipt | (114,472) |  |  | (51,463) |
EOL and MR contract maintenance rights write-off due to sale of aircraft and impairment | (2,362) |  |  | (18,958) |
Maintenance rights at end of period | $ | 3,292,007 |  |  | $ | 642,825 |
Schedule of other intangibles | Other intangibles Other intangibles consisted of the following as of December 31, 2021 and 2020:
|  | As of December 31,
|  | 2021 |  | 2020
Customer relationships, net |  | $ | 198,412 |  |  | $ | 219,589 |
Other intangible assets |  | 10,467 |  |  | 5,045 |
|  | $ | 208,879 |  |  | $ | 224,634 |
Maintenance rights intangible and lease premium, net |
Finite-Lived Intangible Assets [Line Items] |
Schedule of maintenance rights and lease premiums | Maintenance rights and lease premium, net consisted of the following as of December 31, 2021 and 2020:
| As of December 31,
| 2021 |  | 2020
Maintenance rights | $ | 3,292,007 |  |  | $ | 642,825 |
Lease premium, net | 1,152,513 |  |  | 7,089 |
| $ | 4,444,520 |  |  | $ | 649,914 |
Lease premium (a) |
Finite-Lived Intangible Assets [Line Items] |
Schedule of maintenance rights and lease premiums | The following tables present details of lease premium assets and related accumulated amortization as of December 31, 2021:
| As of December 31, 2021
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Lease premium (a) | $ | 1,216,541 |  |  | $ | (64,028) |  |  | $ | 1,152,513 |
(a) $1.2 billion was acquired on the Closing Date as part of the GECAS Transaction. Refer to Note 4—GECAS Transaction.
Schedule of estimated future amortization expense | As of December 31, 2021, the estimated future amortization expense for lease premium assets was as follows:
| Estimated amortization expense
2022 | $ | 242,004 |
2023 | 210,865 |
2024 | 192,232 |
2025 | 142,957 |
2026 | 115,935 |
Thereafter | 248,520 |
| $ | 1,152,513 |
Customer relationships and other intangible assets |
Finite-Lived Intangible Assets [Line Items] |
Schedule of maintenance rights and lease premiums | The following tables present details of customer relationships and related accumulated amortization as of December 31, 2021 and 2020:
| As of December 31, 2021
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Customer relationships | $ | 360,000 |  |  | $ | (161,588) |  |  | $ | 198,412 |
| As of December 31, 2020
| Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Customer relationships | $ | 360,000 |  |  | $ | (140,411) |  |  | $ | 219,589 |
Schedule of estimated future amortization expense | As of December 31, 2021, the estimated future amortization expense for customer relationships was as follows:
| Estimated amortization expense
2022 | $ | 21,176 |
2023 | 21,176 |
2024 | 21,176 |
2025 | 21,176 |
2026 | 21,176 |
Thereafter | 92,532 |
| $ | 198,412 |

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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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