Chapter 11 Reorganization Reorganization Items Table Note (Details)	6 Months Ended
	Jun. 30, 2012
Reached agreement to modify leases	146
Rejected Leases Resulting in Reorganization Charges	16
Modification Of Aircraft and or Engine Leases Resulting in Reorganization Charges	168
Boeing 757-200 Aircraft [Member]
Reached agreement to modify leases	36
Rejected Leases Resulting in Reorganization Charges	7
Modification Of Aircraft and or Engine Leases Resulting in Reorganization Charges	33
MD-80 Aircraft [Member]
Reached agreement to modify leases	74
Rejected Leases Resulting in Reorganization Charges	1
Modification Of Aircraft and or Engine Leases Resulting in Reorganization Charges	63
Spare Engines [Member]
Rejected Leases Resulting in Reorganization Charges	8
Airbus A300-600R Aircraft [Member]
Relinquished Aircraft Subject to Mortgage Resulting in Reorganization Charges	1
Super ATR Aircraft [Member]
Reached agreement to modify leases	39
Modification Of Aircraft and or Engine Leases Resulting in Reorganization Charges	39
Boeing 737-800 Aircraft [Member]
Reached agreement to modify leases	9
Boeing 767-200ER Aircraft [Member]
Reached agreement to modify leases	11
Modification Of Aircraft and or Engine Leases Resulting in Reorganization Charges	11
Boeing 767-300ER Aircraft [Member]
Reached agreement to modify leases	13
Modification Of Aircraft and or Engine Leases Resulting in Reorganization Charges	13