Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
REVENUES	$ 138,443	$ 140,877	$ 431,654	$ 423,060
OPERATING EXPENSES
Salaries, wages and benefits	39,096	41,498	123,056	126,771
Fuel	14,059	11,356	40,333	38,157
Maintenance, materials and repairs	17,082	24,644	65,129	71,783
Depreciation and amortization	26,307	23,392	78,428	66,077
Travel	4,189	4,409	13,181	13,908
Rent	6,689	6,958	20,923	20,528
Landing and ramp	2,450	2,227	7,764	8,264
Insurance	1,109	1,559	3,887	4,466
Other operating expenses	9,175	8,224	28,713	25,914
Operating Expenses	120,156	124,267	381,414	375,868
OPERATING INCOME	18,287	16,610	50,240	47,192
OTHER INCOME (EXPENSE)
Interest income	23	17	66	56
Interest expense	(3,309)	(3,814)	(10,613)	10,500
Net gain (loss) on derivative instruments	639	(317)	969	425
Other Nonoperating Income (Expense)	(2,647)	(4,114)	(9,578)	(10,019)
EARNINGS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	15,640	12,496	40,662	37,173
INCOME TAX EXPENSE	(6,045)	(4,697)	(15,247)	13,958
EARNINGS FROM CONTINUING OPERATIONS	9,595	7,799	25,415	23,215
EARNINGS (LOSS) FROM DISCONTINUED OPERATIONS, NET OF TAXES	312	0	734	(2)
NET EARNINGS	$ 9,907	$ 7,799	$ 26,149	$ 23,213
BASIC EARNINGS PER SHARE
Continuing operations (in dollars per share)	$ 0.15	$ 0.12	$ 0.40	$ 0.36
Discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ 0.01	$ 0.00
TOTAL BASIC EARNINGS PER SHARE (in dollars per share)	$ 0.15	$ 0.12	$ 0.41	$ 0.36
DILUTED EARNINGS PER SHARE
Continuing operations (in dollars per share)	$ 0.15	$ 0.12	$ 0.39	$ 0.36
Discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ 0.01	$ 0.00
TOTAL DILUTED NET EARNINGS PER SHARE (in dollars per share)	$ 0.15	$ 0.12	$ 0.40	$ 0.36
WEIGHTED AVERAGE SHARES
Basic (in shares)	64,286	64,052	64,240	63,972
Diluted (in shares)	65,271	65,036	65,207	64,807