Unaudited Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
REVENUES	$ 153,554	$ 193,061	$ 299,060	$ 368,188
OPERATING EXPENSES
Salaries, wages and benefits	44,570	45,326	91,674	91,674
Fuel	14,084	48,640	27,924	88,316
Maintenance, materials and repairs	25,270	22,380	48,384	43,686
Depreciation and amortization	21,514	23,878	41,814	46,249
Travel	5,566	6,918	11,544	13,228
Rent	6,244	5,434	11,974	11,074
Landing and ramp	3,880	6,032	7,946	12,437
Insurance	1,826	2,394	3,836	4,744
Other operating expenses	8,998	9,258	18,560	18,550
Operating Expenses	131,952	170,260	263,656	329,958
OPERATING INCOME	21,602	22,801	35,404	38,230
OTHER INCOME (EXPENSE)
Interest income	38	33	66	99
Interest expense	(3,671)	(3,537)	(7,218)	(7,640)
Net gain (loss) on derivative instruments	202	376	662	(3,556)
Write-off of unamortized debt issuance costs	0	(16)	0	(2,886)
Other Nonoperating Income (Expense)	(3,431)	(3,144)	(6,490)	(13,983)
EARNINGS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	18,171	19,657	28,914	24,247
INCOME TAX EXPENSE	(6,952)	(7,377)	(11,033)	(9,086)
EARNINGS FROM CONTINUING OPERATIONS	11,219	12,280	17,881	15,161
EARNINGS (LOSS) FROM DISCONTINUED OPERATIONS, NET OF TAXES	(160)	19	(390)	(98)
NET EARNINGS	$ 11,059	$ 12,299	$ 17,491	$ 15,063
BASIC EARNINGS PER SHARE
Continuing operations (in dollars per share)	$ 0.18	$ 0.19	$ 0.28	$ 0.24
Discontinued operations (in dollars per share)	$ (0.01)	$ 0.00	$ 0.00	$ 0.00
TOTAL BASIC EARNINGS PER SHARE (in dollars per share)	$ 0.17	$ 0.19	$ 0.28	$ 0.24
DILUTED EARNINGS PER SHARE
Continuing operations (in dollars per share)	$ 0.17	$ 0.19	$ 0.28	$ 0.24
Discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ (0.01)	$ 0.00
TOTAL DILUTED NET EARNINGS PER SHARE (in dollars per share)	$ 0.17	$ 0.19	$ 0.27	$ 0.24
WEIGHTED AVERAGE SHARES
Basic (in shares)	63,431	63,333	63,431	63,233
Diluted (in shares)	64,393	64,172	64,383	64,055