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Commitments and contingencies (Tables) | 12 Months Ended
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Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract] |
Schedule of movements in prepayments on flight equipment | Movements in prepayments on flight equipment during the years ended December 31, 2021 and 2020 were as follows:
| Year Ended December 31,
| 2021 |  | 2020
Prepayments on flight equipment at beginning of period | $ | 2,111,659 |  |  | $ | 2,954,478 |
GECAS Transaction | 2,990,414 |  |  | — |
Prepayments and additions during the period, net | 136,655 |  |  | 270,032 |
Interest paid and capitalized during the period | 30,827 |  |  | 49,144 |
Prepayments and capitalized interest applied to the purchase of flight equipment | (682,707) |  |  | (1,161,995) |
Prepayments on flight equipment at end of period | $ | 4,586,848 |  |  | $ | 2,111,659 |
Schedule of unrecorded contractual commitments for purchase of flight equipment | The following table presents our contractual commitments for the purchase of flight equipment as of December 31, 2021:
| 2022 |  | 2023 |  | 2024 |  | 2025 |  | 2026 |  | Thereafter |  | Total
| (U.S. Dollars in millions)
Purchase obligations (a) | $ | 4,241.0 |  |  | $ | 5,693.8 |  |  | $ | 5,245.5 |  |  | $ | 4,233.0 |  |  | $ | 1,885.7 |  |  | $ | 1,063.1 |  |  | $ | 22,362.1 |
(a)As of December 31, 2021, we had commitments to purchase 417 aircraft (including 26 purchase and leaseback transactions and excluding aircraft for which we have cancellation rights and aircraft with contracted sales at delivery), 30 engines, 16 helicopters and other commitments. The timing of our purchase obligations is based on current estimates. We have incorporated expected delivery delays into the table above. In addition, we have the right to reschedule the delivery dates of certain of our aircraft to future dates.

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- Definition Tabular disclosure of prepayments on flight equipment which includes a rollforward schedule. + References No definition available. + Details
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- Definition Tabular disclosure of unconditional purchase obligation not recognized as liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308 + Details
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