v2.4.0.8

Fair Value of Financial Instruments (Details) (USD $)	6 Months Ended						3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Estimate of Fair Value	Dec. 31, 2013 Estimate of Fair Value	Jun. 30, 2014 Carrying Amount	Dec. 31, 2013 Carrying Amount	Jun. 30, 2014 Aircraft operations expense	Jun. 30, 2013 Aircraft operations expense	Jun. 30, 2014 Aircraft operations expense	Jun. 30, 2013 Aircraft operations expense	Jun. 30, 2014 Fuel derivative contracts Prepaid expenses and other current assets	Dec. 31, 2013 Fuel derivative contracts Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Fair value of fuel derivative contracts											$ 6,000	$ 0
Derivative Instruments, Gain (Loss) [Line Items]
Non-cash mark to market derivative losses	(64,000)	(140,000)					(11,000)	(23,000)	(64,000)	(140,000)
Cash settlements under derivative contracts	0	0
Fair value of financial instruments [Abstract]
Long-term debt, fair value disclosure			$ 528,161,000	$ 513,436,000	$ 533,079,000	$ 516,453,000

X

- Definition

Cash settlements under the terms of the agreements for fuel derivative contracts.

+ References

No definition available.

+ Details

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13495-108611



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

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- Details

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- Details

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X

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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X

- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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