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Related party transactions (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Related Party Transaction [Line Items] |  |  |
Management services fees received | $ 13,426,000 | $ 18,298,000 | $ 23,094,000
AerDragon [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Management services fees received | 500,000 | 600,000 | 500,000
Dividends received from equity investment | 3,300,000 | 1,700,000 | 300,000
ACSAL [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Management services fees received | 500,000 | 500,000 | 500,000
Dividends received from equity investment | 1,900,000 | 0 | 0
AerLift [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Management services fees received | 1,800,000 | 2,900,000 | 2,800,000
Dividends received from equity investment | $ 3,000,000 | $ 7,500,000 | $ 2,300,000

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