Passenger and Ground Handling Revenues (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	6 Months Ended								0 Months Ended		0 Months Ended		1 Months Ended
	Dec. 31, 2007 Delta Connection Agreements	Jun. 30, 2013 Delta Connection Agreements item agreement aircraft	Dec. 31, 2012 Delta Connection Agreements aircraft	Jun. 30, 2013 Delta Connection Agreements CRJ 200 aircraft	Dec. 31, 2012 Delta Connection Agreements CRJ 200 aircraft	Jun. 30, 2013 Delta Connection Agreements CRJ 700s aircraft	Dec. 31, 2012 Delta Connection Agreements CRJ 700s aircraft	Jun. 30, 2013 Delta Connection Agreements CRJ 900 aircraft	Dec. 31, 2012 Delta Connection Agreements CRJ 900 aircraft	Feb. 01, 2010 United Express Agreements	Feb. 01, 2010 United Express Agreements CRJ 200 aircraft	May 16, 2013 United Express Agreements E175 aircraft	Nov. 12, 2010 ExpressJet CPA aircraft	Sep. 30, 2012 American Agreement	Feb. 14, 2013 American Agreement CRJ 200 ExpressJet aircraft	Nov. 14, 2012 American Agreement CRJ 200 SkyWest Airlines, Inc. aircraft
Agreements with other airlines
Term of agreement		15 years								5 years		12 years		4 years
Number of agreements for cross-termination rights		2
Number of years after which the rate resets		5 years
Anniversary of agreements which contractual rates shall not exceed the second lowest rate for all carriers		5 years
Contractual rate shall not exceed this number of rates from other carriers		2
Number of aircraft operated			34				5		29		14	40	229			12
Number of aircraft terminated					66
Number of aircraft delivered						5		29
Number of aircraft subleased				41
Number of aircraft anticipate to operate												40			11
Amount of receivables withheld from weekly scheduled wire payments to SkyWest Airlines and Atlantic Southeast	$ 25