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Variable interest entities (Narrative) (Details) $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2019 USD ($) aircraft | Dec. 31, 2018 USD ($) | Jun. 30, 2013 aircraft
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 1,373 |  |
Debt guarantees | $ | $ 80,366 | $ 88,313 |
AerFunding |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage | 100.00% |  |
Ownership percentage | 5.00% |  |
Boeing 737-800 | ACSAL |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft |  |  | 8
AerCap Holdings N.V. | ACSAL |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage |  |  | 19.00%
AerCap Partners I |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage | 50.00% |  |
Subordinated debt | $ | $ 63,800 |  |
AerCap Partners I | Boeing 737 NG Aircraft |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 2 |  |
AerCap Partners I | AerCap Holdings N.V. |  |  |
Variable Interest Entity [Line Items] |  |  |
Subordinated debt | $ | $ 31,900 |  |
AerCap Partners I | Deucalion Aviation Funds |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage | 50.00% |  |
Subordinated debt | $ | $ 31,900 |  |
Aercap Partners 767 |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage | 50.00% |  |
Subordinated debt | $ | $ 32,600 |  |
Aercap Partners 767 | Boeing 767 300ER Aircraft |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 2 |  |
Aercap Partners 767 | AerCap Holdings N.V. |  |  |
Variable Interest Entity [Line Items] |  |  |
Subordinated debt | $ | $ 16,300 |  |
Aercap Partners 767 | Deucalion Aviation Funds |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage | 50.00% |  |
Subordinated debt | $ | $ 16,300 |  |
AerFunding | Boeing 737 NG Aircraft |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 6 |  |
AerFunding | Airbus 320 Family Aircraft |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 1 |  |
AerFunding | Airbus 320 neoFamily Aircraft |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 2 |  |
AerFunding | Airbus 350 Aircraft |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 2 |  |
AerFunding | Boeing 787 Aircraft |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 5 |  |
AerFunding | AerCap Holdings N.V. |  |  |
Variable Interest Entity [Line Items] |  |  |
Subordinated debt | $ | $ 323,500 |  |
Credit facility amount outstanding | $ | $ 898,500 |  |
AerDragon |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage | 50.00% |  |
AerDragon | Narrowbody Aircraft |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 28 |  |
AerDragon | China Aviation Supplies Holding Company |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage | 50.00% |  |
AerLift |  |  |
Variable Interest Entity [Line Items] |  |  |
Debt guarantees | $ | $ 80,400 | $ 88,300 |
AerLift | Widebody Aircraft |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 4 |  |
AerLift | AerCap Holdings N.V. |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage | 39.00% |  |
ACSAL | Boeing 737-800 |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of aircraft | 8 |  |
Peregrine |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership percentage | 9.50% |  |
Number of aircraft | 21 |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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