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Commitments and contingencies (Narrative) (Details) |  |  | 1 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 24, 2014 USD ($) | Mar. 16, 2009 USD ($) | Oct. 31, 2013 USD ($) claim | Jul. 31, 2011 USD ($) claim | Jun. 30, 2021 aircraft | Dec. 31, 1992 engine aircraft | Jan. 01, 1990 engine aircraft
VASP Litigation |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Damages awarded | $ | $ 36,900,000 | $ 40,000,000 |  |  |  |  |
VASP Litigation | VASP Litigation English Court |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Claim award for loss of profit plus accrued interest | $ | 40,000,000 |  |  |  |  |  |
VASP Litigation | VASP Litigation Irish Court |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Claim award for loss of profit plus accrued interest | $ | $ 24,000,000 |  |  |  |  |  |
VASP Litigation | Aircraft |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of capital leased assets | aircraft |  |  |  |  |  | 13 |
Number of leases that company incurred obligations due to another company's default | aircraft |  |  |  |  |  | 13 |
VASP Litigation | Engines |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of capital leased assets | engine |  |  |  |  |  | 3 |
Number of leases that company incurred obligations due to another company's default | aircraft |  |  |  |  |  | 3 |
Transbrasil Litigation |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of actions | claim |  |  |  | 3 |  |  |
Aggregate amount due from AerCap | $ |  |  |  | $ 210,000,000 |  |  |
Number of claims dismissed | claim |  |  | 2 |  |  |  |
Damages suffered | $ |  |  | $ 0 |  |  |  |
Transbrasil Litigation | Statutory Penalties |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of actions | claim |  |  |  | 1 |  |  |
Transbrasil Litigation | Recovery of Attorneys' Fees |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of actions | claim |  |  |  | 1 |  |  |
Transbrasil Litigation | Indemnity Claim |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of actions | claim |  |  |  | 1 |  |  |
Transbrasil Litigation | Aircraft |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of capital leased assets | aircraft |  |  |  |  |  |  | 1
Transbrasil Litigation | Engines |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of capital leased assets | engine |  |  |  |  |  |  | 2
Capital Addition Purchase Commitments |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of forward orders | aircraft |  |  |  |  | 280 |  |

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