Subsequent Events (Notes)	9 Months Ended
Sep. 30, 2013
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On October 1, 2013, the Company entered into agreements with each of Pratt & Whitney (P&W), a division of United Technologies Corp., and International Aero Engines AG (IAE) for the provision and servicing of engines to power its fleet of Airbus A320-family aircraft. The agreement with Pratt & Whitney covers provisioning of PW1100G-JM engines to power the Company’s order (including direct leased aircraft) for 55 A320neo family aircraft, of which the Company is scheduled to begin taking delivery in 2015. The Company and Pratt & Whitney also entered into a corresponding maintenance service agreement covering 119 engines, including spare engines. The agreement with IAE covers provisioning of V2500-series engines to power 45 of the existing A320 family aircraft on order, with deliveries commencing in 2015, and a maintenance service agreement covering up to 96 engines, including spare engines. As part of the transaction, the Company also amended and restated its existing maintenance service agreement with IAE, which agreement currently covers 147 engines, including spare engines. Commitments disclosed within Note 7, "Commitments and Contingencies," are inclusive of additional commitments resulting from the agreement with IAE and P&W. On October 15, 2013, the Company had an aircraft experience an engine failure shortly after takeoff. The aircraft immediately returned to the airport, landed safely and the passengers and crew safely disembarked from the aircraft. The airframe and engine incurred damage as a result of the failure. We are working jointly with the FAA and the NTSB to determine the cause of the engine failure, and until the investigation has been completed, and liability determined, it is difficult to assess what the direct financial impact to the Company will be. We believe the total impact to the statement of operations from this incident could be up to $10 million which includes expenses related to repairing the damage to the aircraft involved, the write-off of the deferred heavy maintenance related to the engine, and other operating expenses. It is not certain whether any portion of these expenses will ultimately be recovered through insurance or other related claims.

Subsequent Events

On October 1, 2013, the Company entered into agreements with each of Pratt & Whitney (P&W), a division of United Technologies Corp., and International Aero Engines AG (IAE) for the provision and servicing of engines to power its fleet of Airbus A320-family aircraft. The agreement with Pratt & Whitney covers provisioning of PW1100G-JM engines to power the Company’s order (including direct leased aircraft) for 55 A320neo family aircraft, of which the Company is scheduled to begin taking delivery in 2015. The Company and Pratt & Whitney also entered into a corresponding maintenance service agreement covering 119 engines, including spare engines. The agreement with IAE covers provisioning of V2500-series engines to power 45 of the existing A320 family aircraft on order, with deliveries commencing in 2015, and a maintenance service agreement covering up to 96 engines, including spare engines. As part of the transaction, the Company also amended and restated its existing maintenance service agreement with IAE, which agreement currently covers 147 engines, including spare engines. Commitments disclosed within Note 7, "Commitments and Contingencies," are inclusive of additional commitments resulting from the agreement with IAE and P&W.

On October 15, 2013, the Company had an aircraft experience an engine failure shortly after takeoff. The aircraft immediately returned to the airport, landed safely and the passengers and crew safely disembarked from the aircraft. The airframe and engine incurred damage as a result of the failure. We are working jointly with the FAA and the NTSB to determine the cause of the engine failure, and until the investigation has been completed, and liability determined, it is difficult to assess what the direct financial impact to the Company will be. We believe the total impact to the statement of operations from this incident could be up to $10 million which includes expenses related to repairing the damage to the aircraft involved, the write-off of the deferred heavy maintenance related to the engine, and other operating expenses. It is not certain whether any portion of these expenses will ultimately be recovered through insurance or other related claims.