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ILFC Transaction (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  | 1 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jun. 09, 2015 | May 14, 2014 | May 13, 2014 | Aug. 24, 2015 | Dec. 31, 2014 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |  |  |
Ordinary shares, acquired |  |  |  |  |  | 25,012,978
ILFC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash consideration |  | $ 2,400,000 |  |  |  |
ILFC Transaction, shares |  | 97,560,976 |  |  |  |
Consideration transferred |  | $ 6,957,641 |  |  |  |
AerCap's share price |  | $ 46.59 |  |  |  |
Total revenues and other income |  |  |  |  | $ 2,574,700 |
Net income |  |  |  |  | $ 687,800 |
AIG [Member] | AerCap Holdings N.V. [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of ordinary shares sold in secondary offering | 71,184,686 |  |  | 10,677,702 |  |
Ordinary shares, acquired | 15,698,588 |  |  |  |  |
AIG [Member] | ILFC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Special distribution paid |  |  | $ 600,000 |  |  |

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