Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Commitments and contingencies (Narrative) (Details)

v3.8.0.1
Commitments and contingencies (Narrative) (Details)
1 Months Ended 12 Months Ended
Oct. 24, 2014
USD ($)
claim
Mar. 16, 2009
USD ($)
Feb. 23, 2006
USD ($)
Oct. 31, 2013
claim
Jul. 31, 2011
USD ($)
claim
Dec. 31, 2017
USD ($)
aircraft
guarantee
Dec. 31, 2015
USD ($)
Dec. 31, 2016
USD ($)
Jul. 31, 2006
lease
Dec. 31, 1992
aircraft
engine
Jan. 01, 1990
aircraft
engine
entity
Loss Contingencies [Line Items]                      
Number of aircraft | aircraft           980          
Gain from the settlement of asset value guarantees             $ 22,600,000        
Guarantee carrying value           $ 2,272,000   $ 51,804,000      
Asset Value Guarantees [Member]                      
Loss Contingencies [Line Items]                      
Number of asset value guarantees settled | guarantee           1          
Gain from the settlement of asset value guarantees           $ 3,200,000          
Number of asset value guarantees exercised | guarantee           1          
Number of asset value guarantees expired unexercised | guarantee           2          
Number of asset value guarantees outstanding | guarantee           4          
Guarantee carrying value           $ 0   37,500,000      
Maximum aggregate potential commitment           $ 66,500,000          
Other Guarantees, Future Re-lease                      
Loss Contingencies [Line Items]                      
Number of asset value guarantees settled | guarantee           4          
Guarantee carrying value           $ 0   11,400,000      
Number of aircraft sold with a guarantee of the future lease cash flows | aircraft           4          
Other Guarantees, Replacement Lease Rental [Member]                      
Loss Contingencies [Line Items]                      
Number of asset value guarantees settled | guarantee           1          
Number of asset value guarantees outstanding | guarantee           2          
Guarantee carrying value           $ 2,300,000   $ 2,900,000      
Maximum aggregate potential commitment           10,500,000          
VASP Litigation [Member]                      
Loss Contingencies [Line Items]                      
Damages suffered     $ 0                
Damages awarded $ 36,900,000 $ 40,000,000                  
VASP Litigation [Member] | Judicial Ruling [Member]                      
Loss Contingencies [Line Items]                      
Number of judgments | claim 2                    
VASP Litigation [Member] | VASP Litigation English Court [Member]                      
Loss Contingencies [Line Items]                      
Number of leases that company incurred obligations due to another company's default | lease                 7    
Claim award for loss of profit plus accrued interest $ 40,000,000                    
VASP Litigation [Member] | VASP Litigation Irish Court [Member]                      
Loss Contingencies [Line Items]                      
Claim award for loss of profit plus accrued interest $ 24,000,000                    
VASP Litigation [Member] | Aircraft [Member]                      
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 [Member] | Engines [Member]                      
Loss Contingencies [Line Items]                      
Number of capital leased assets | engine                   3  
Number of leases that company incurred obligations due to another company's default | engine                   3  
Transbrasil Litigation [Member]                      
Loss Contingencies [Line Items]                      
Damages suffered         $ 0            
Aggregate amount due from AerCap         $ 210,000,000            
Number of actions | claim         3            
Number of claims dismissed | claim       2              
Transbrasil Litigation [Member] | Recovery of Attorneys' Fees [Member]                      
Loss Contingencies [Line Items]                      
Number of actions | claim         1            
Transbrasil Litigation [Member] | Indemnity Claim [Member]                      
Loss Contingencies [Line Items]                      
Number of actions | claim         1            
Transbrasil Litigation [Member] | Statutory Penalties [Member]                      
Loss Contingencies [Line Items]                      
Number of actions | claim         1            
Transbrasil Litigation [Member] | Aircraft [Member]                      
Loss Contingencies [Line Items]                      
Number of capital leased assets | aircraft                     1
Transbrasil Litigation [Member] | Engines [Member]                      
Loss Contingencies [Line Items]                      
Number of capital leased assets | engine                     2
Number of AerCap lessors | entity                     2
Boeing [Member]                      
Loss Contingencies [Line Items]                      
Non-refundable deposits           899,500,000          
Airbus [Member]                      
Loss Contingencies [Line Items]                      
Non-refundable deposits           718,000,000          
Embraer [Member]                      
Loss Contingencies [Line Items]                      
Non-refundable deposits           $ 13,500,000          
Capital Addition Purchase Commitments [Member]                      
Loss Contingencies [Line Items]                      
Number of aircraft | aircraft           438