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Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011 | Dec. 31, 2011 subsidiary segment
Segment Reporting |  |  |  |  |
Operating segments number |  |  |  |  | 2
Number of operating subsidiaries representing operating segments |  |  |  |  | 2
Segment Reporting |  |  |  |  |
Operating revenues | $ 937,214 | $ 933,697 | $ 1,858,388 | $ 1,799,648 |
Operating expense | 890,408 | 914,657 | 1,791,125 | 1,780,382 |
Depreciation and amortization expense | 64,182 | 63,697 | 128,497 | 126,890 |
Interest expense | 19,387 | 20,052 | 39,167 | 40,272 |
Segment profit (loss) | 27,419 | (1,012) | 28,096 | (21,006) |
Identifiable intangible assets, other than goodwill | 18,373 | 20,622 | 18,373 | 20,622 | 19,497
Total assets | 4,238,810 | 4,339,741 | 4,238,810 | 4,339,741 | 4,281,908
Capital expenditures (including non - cash) | 11,279 | 19,047 | 30,494 | 36,666 |
SkyWest |  |  |  |  |
Segment Reporting |  |  |  |  |
Operating revenues | 509,135 | 513,326 | 1,004,046 | 992,944 |
Operating expense | 467,497 | 479,905 | 940,403 | 936,720 |
Depreciation and amortization expense | 38,646 | 36,825 | 77,429 | 73,280 |
Interest expense | 12,353 | 12,621 | 24,915 | 25,351 |
Segment profit (loss) | 29,285 | 20,800 | 38,728 | 30,873 |
Total assets | 2,604,012 | 2,545,336 | 2,604,012 | 2,545,336 |
Capital expenditures (including non - cash) | 6,700 | 11,318 | 21,953 | 21,618 |
ExpressJet |  |  |  |  |
Segment Reporting |  |  |  |  |
Operating revenues | 425,445 | 417,497 | 849,074 | 800,956 |
Operating expense | 421,640 | 433,371 | 848,192 | 840,962 |
Depreciation and amortization expense | 25,536 | 26,872 | 51,068 | 53,610 |
Interest expense | 5,959 | 6,332 | 12,005 | 12,711 |
Segment profit (loss) | (2,154) | (22,206) | (11,123) | (52,717) |
Identifiable intangible assets, other than goodwill | 18,373 | 20,622 | 18,373 | 20,622 |
Total assets | 1,634,798 | 1,794,405 | 1,634,798 | 1,794,405 |
Capital expenditures (including non - cash) | 4,579 | 7,729 | 8,541 | 15,048 |
Other |  |  |  |  |
Segment Reporting |  |  |  |  |
Operating revenues | 2,634 | 2,874 | 5,268 | 5,748 |
Operating expense | 1,271 | 1,381 | 2,530 | 2,700 |
Interest expense | 1,075 | 1,099 | 2,247 | 2,210 |
Segment profit (loss) | $ 288 | $ 394 | $ 491 | $ 838 |

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