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Accrued maintenance liability (Tables) | 12 Months Ended
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Dec. 31, 2021
Accrued Maintenance Liability [Abstract] |
Schedule of movements in accrued maintenance liability | Movements in accrued maintenance liability during the years ended December 31, 2021 and 2020 were as follows:
| Year Ended December 31,
| 2021 |  | 2020
Accrued maintenance liability at beginning of period | $ | 1,750,395 |  |  | $ | 2,190,159 |
GECAS Transaction | 1,234,857 |  |  | — |
Maintenance payments received | 448,516 |  |  | 345,699 |
Maintenance payments returned | (209,087) |  |  | (412,492) |
Release to income upon sale | (20,428) |  |  | (95,042) |
Release to income other than upon sale | (273,146) |  |  | (344,210) |
Lessor contribution, top ups and other | (30,456) |  |  | 66,281 |
Accrued maintenance liability at end of period | $ | 2,900,651 |  |  | $ | 1,750,395 |

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- Definition Accrued Maintenance Liability [Abstract] + References No definition available. + Details
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- Definition Schedule Of Movements In Accrued Maintenance Liability [Table Text Block] + References No definition available. + Details
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