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Related party transactions (Schedule of Related Party Transactions) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Related Party Transaction [Line Items] |  |  |
Management fees | $ 2,515 | $ 2,654 | $ 2,795
Dividends | 3,148 | 3,180 | 8,305
AerDragon |  |  |
Related Party Transaction [Line Items] |  |  |
Dividends | 1,667 | 1,667 | 3,333
ACSAL |  |  |
Related Party Transaction [Line Items] |  |  |
Dividends | 1,088 | 1,119 | 1,949
AerLift |  |  |
Related Party Transaction [Line Items] |  |  |
Dividends | 393 | 394 | 3,023
Management Service | AerDragon |  |  |
Related Party Transaction [Line Items] |  |  |
Management fees | 675 | 497 | 507
Management Service | ACSAL |  |  |
Related Party Transaction [Line Items] |  |  |
Management fees | 480 | 480 | 480
Management Service | AerLift |  |  |
Related Party Transaction [Line Items] |  |  |
Management fees | $ 1,360 | $ 1,677 | $ 1,808

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