Represents the full-time equivalent number of the entity's employees as of the balance sheet date.

No definition available.

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- Definition

Represents the approximate number of active employees in employee groups.

+ References

No definition available.

+ Details

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- Definition

Represents the information pertaining to joint collective bargaining agreement entered between employee groups from different airlines.

+ References

No definition available.

+ Details

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 4

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.4)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13537-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13531-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

+ Details

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- Details

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- Details

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- Details

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Commitments and Contingencies (Details 2) (USD $)	12 Months Ended
Commitments and Contingencies (Details 2) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Commitments and Contingencies
Allowance for doubtful accounts	326,600	94,000
Concentration Risk and Significant Customers
Number of full-time equivalent employees	18,500
Atlantic southeast pilots and expressjet delaware pilots
Concentration Risk and Significant Customers
Number of employee group for joint bargaining agreement	2
Revenue from Rights Concentration Risk \| Customer Concentration Risk \| Delta, United, and Continental Combined
Concentration Risk and Significant Customers
Concentration risk (as a percent)	88.70%	91.60%	94.80%
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk
Concentration Risk and Significant Customers
Concentration risk (as a percent)	45.10%
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| Atlantic Southeast Pilots
Concentration Risk and Significant Customers
Approximate Number of Active Employees	1,631
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| Atlantic Southeast Flight Attendants
Concentration Risk and Significant Customers
Approximate Number of Active Employees	1,132
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| Atlantic Southeast Flight Controllers
Concentration Risk and Significant Customers
Approximate Number of Active Employees	53
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| Atlantic Southeast Mechanics
Concentration Risk and Significant Customers
Approximate Number of Active Employees	554
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| Atlantic Southeast Stock Clerks
Concentration Risk and Significant Customers
Approximate Number of Active Employees	60
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| ExpressJet Delaware Pilots
Concentration Risk and Significant Customers
Approximate Number of Active Employees	2,577
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| ExpressJet Delaware Flight Attendants
Concentration Risk and Significant Customers
Approximate Number of Active Employees	1,210
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| ExpressJet Delaware Mechanics
Concentration Risk and Significant Customers
Approximate Number of Active Employees	942
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| ExpressJet Delaware Dispatchers
Concentration Risk and Significant Customers
Approximate Number of Active Employees	81
Workforce Subject to Collective Bargaining Arrangements \| Labor Force Concentration Risk \| ExpressJet Delaware Stock Clerks
Concentration Risk and Significant Customers
Approximate Number of Active Employees	97