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v3.19.3.a.u2

Related party transactions (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 aircraft | Mar. 31, 2019 aircraft | Dec. 31, 2019 USD ($) aircraft | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |
Number of aircraft sold | aircraft | 1 | 6 |  |  |
Share repurchase (in shares) |  |  | $ 607,343,000 | $ 726,640,000 | $ 1,124,724,000
AerCap Partners I |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Number of aircraft sold | aircraft |  |  | 4 |  |
Executive officer |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Share repurchase (in shares) |  |  | $ 39,600 |  |
Share repurchase, aggregate sales price |  |  | 1,800,000 |  |
Waha Capital PJSC |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Share repurchase (in shares) |  |  | 2,427,790 |  |
Share repurchase, aggregate sales price |  |  | $ 144,800,000 |  |

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