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Maintenance Rights Intangible And Lease Premium, Net (Schedule Of Movements In Maintenance Rights Intangible) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items] |  |
Maintenance rights intangible, net at beginning of period | $ 3,812,259 |
Maintenance rights intangible, net at end of period | 3,068,318 | $ 3,812,259
Maintenance Rights Intangible [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Maintenance rights intangible, net at beginning of period | 3,812,259 |
ILFC Transaction |  | 3,975,286
EOL and MR contract maintenance rights expense | (348,366) | (54,507)
MR contract maintenance rights write off due to maintenance liability release | (161,839) | (48,729)
EOL contract maintenance rights write off due to cash receipt | (118,438) | (27,570)
EOL and MR contract intangible write off due to sale of aircraft | (115,298) |
Transfer to lease incentives |  | (32,221)
Maintenance rights intangible, net at end of period | $ 3,068,318 | $ 3,812,259

X
- Definition Amount of decrease to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for end of lease (EOL) and maintenance reserve (MR) contract intangible write off due to sale of aircraft. + References No definition available. + Details
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Namespace Prefix: | aer_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of decrease to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for end of lease (EOL) and maintenance reserve (MR) contract maintenance rights expense. + References No definition available. + Details
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Namespace Prefix: | aer_
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X
- Definition Amount of decrease to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for end of lease (EOL) contract cash receipt. + References No definition available. + Details
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Namespace Prefix: | aer_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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X
- Definition Amount of decrease to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for maintenance reserve (MR) contract maintenance rights write off due to maintenance liability release. + References No definition available. + Details
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Namespace Prefix: | aer_
Data Type: | xbrli:monetaryItemType
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- Definition Maintenance Rights Intangible + References No definition available. + Details
Name: | aer_MaintenanceRightsIntangible
Namespace Prefix: | aer_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Maintenance Rights Intangible, Acquired During Period + References No definition available. + Details
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Namespace Prefix: | aer_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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X
- Definition Maintenance Rights Intangible, Transfer To Lease Incentive + References No definition available. + Details
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Namespace Prefix: | aer_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Data Type: | na
Balance Type: |
Period Type: |