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Flight equipment subject to operating lease - Schedule of Flight Equipment Subject to Operating Lease (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Movement in Property, Plant and Equipment [Roll Forward] |  |  |
Depreciation | $ (1,143,761) | $ (1,068,772) | $ (965,955)
Flight Equipment |  |  |
Movement in Property, Plant and Equipment [Roll Forward] |  |  |
Net book value, beginning balance | 26,231,208 |  |
Purchase of aircraft | 5,010,146 |  |
Depreciation | (1,143,761) |  |
Flight equipment subject to operating leases reclassified to flight equipment held for sale | (1,821,084) |  |
Transfer of flight equipment to investment in sales-type lease | (106,043) |  |
Net book value, ending balance | 28,170,466 | $ 26,231,208 |
Accumulated depreciation at the end | $ (5,998,453) |  |

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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