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Leases (Details) - B-717-200 Aircraft | 3 Months Ended |
--- | --- | ---
Sep. 30, 2015 USD ($) aircraft | Sep. 30, 2012 USD ($) | Jul. 09, 2012 aircraft
Aircraft Type [Line Items] |  |  |
Lessee | Delta Air Lines, Inc. |  |
Total assets available for lease/sublease, number of units |  |  | 88
Number of aircraft delivered to sublessee | 80 |  |
Remaining number of aircraft to be delivered to sublessee | 8 |  |
Operating lease, number of units | 76 |  |
Owned assets, number of units | 10 |  |
Capital leased assets, number of units | 2 |  |
Contingent payments | $ | $ 0 |  |
Residual value | $ | $ 0 |  |
Estimated loss on sublease | $ |  | $ 137,000,000 |
Operating Lease [Member] |  |  |
Aircraft Type [Line Items] |  |  |
Number of aircraft delivered to sublessee | 73 |  |
Sales Type Lease [Member] |  |  |
Aircraft Type [Line Items] |  |  |
Number of aircraft delivered to sublessee | 5 |  |
Direct Financing Lease [Member] |  |  |
Aircraft Type [Line Items] |  |  |
Number of aircraft delivered to sublessee | 2 |  |
Maximum |  |  |
Aircraft Type [Line Items] |  |  |
Sublease terms for leased aircraft | 9 years |  |
Lease terms for owned aircraft | 7 years |  |
Minimum |  |  |
Aircraft Type [Line Items] |  |  |
Sublease terms for leased aircraft | 3 years |  |

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- Definition The remaining estimated cost, at the scheduled date of delivery of each B717 to Delta (including the conversion, maintenance, and other contractual costs to be incurred), of the lease of the B717s currently accounted for as operating leases, net of the future sublease income from Delta. + References No definition available. + Details
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- Definition Amount due based upon the occurrence of an event specified in the contractual terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Rentals -URI http://asc.fasb.org/extlink&oid=6508509 + Details
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