Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
REVENUES	$ 730,133	$ 667,382	$ 823,483
OPERATING EXPENSES
Salaries, wages and benefits	188,884	176,988	380,276
Fuel	150,003	133,776	109,242
Depreciation and amortization	91,063	87,594	83,964
Maintenance, materials and repairs	86,929	79,143	66,621
Landing and ramp	22,630	23,782	29,236
Travel	28,335	22,709	21,761
Rent	25,201	15,339	10,926
Insurance	9,309	9,171	10,918
Impairment of goodwill	2,797	0	0
Impairment of acquired intangibles	2,282	0	0
Impairment of aircraft	22,065	0	0
Other operating expenses	38,006	37,204	38,749
Operating Expenses	667,504	585,706	751,693
OPERATING INCOME	62,629	81,676	71,790
OTHER INCOME (EXPENSE)
Interest income	179	316	449
Interest expense	(14,181)	(18,675)	(26,881)
Write-off of unamortized debt issuance costs	(2,886)	0	0
Unrealized loss on derivative instruments	(4,881)	0	0
Other Nonoperating Income (Expense)	(21,769)	(18,359)	(26,432)
EARNINGS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	40,860	63,317	45,358
INCOME TAXES	(16,995)	(23,413)	(17,156)
EARNINGS FROM CONTINUING OPERATIONS	23,865	39,904	28,202
EARNINGS (LOSSES) FROM DISCONTINUED OPERATIONS, NET OF TAX	(673)	(70)	6,247
NET EARNINGS	$ 23,192	$ 39,834	$ 34,449
BASIC EARNINGS PER SHARE
Continuing operations	$ 0.38	$ 0.64	$ 0.45
Discontinued operations	$ (0.01)	$ (0.01)	$ 0.10
TOTAL NET EARNINGS PER SHARE - Basic	$ 0.37	$ 0.63	$ 0.55
DILUTED EARNINGS PER SHARE
Continuing operations	$ 0.37	$ 0.62	$ 0.44
Discontinued operations	$ (0.01)	$ 0.00	$ 0.10
TOTAL NET EARNINGS PER SHARE - Diluted	$ 0.36	$ 0.62	$ 0.54
WEIGHTED AVERAGE SHARES
Basic	63,284	62,807	62,674
Diluted	64,085	64,009	63,279