Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
REVENUES	$ 149,618	$ 138,904	$ 293,211	$ 282,183
OPERATING EXPENSES
Salaries, wages and benefits	40,895	41,964	83,960	85,273
Fuel	14,014	12,440	26,274	26,801
Maintenance, materials and repairs	23,168	25,005	48,047	47,139
Depreciation and amortization	27,142	21,765	52,121	42,685
Travel	4,419	4,772	8,992	9,499
Rent	6,924	6,791	14,234	13,570
Landing and ramp	2,576	1,972	5,314	6,037
Insurance	1,573	1,396	2,778	2,907
Other operating expenses	10,790	8,630	19,538	17,690
Operating Expenses	131,501	124,735	261,258	251,601
OPERATING INCOME	18,117	14,169	31,953	30,582
OTHER INCOME (EXPENSE)
Interest income	24	18	43	39
Interest expense	(3,481)	(3,554)	(7,304)	6,686
Net gain on derivative instruments	31	452	330	742
Other Nonoperating Income (Expense)	(3,426)	(3,084)	(6,931)	(5,905)
EARNINGS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	14,691	11,085	25,022	24,677
INCOME TAX EXPENSE	(5,393)	(4,170)	(9,202)	9,261
EARNINGS FROM CONTINUING OPERATIONS	9,298	6,915	15,820	15,416
EARNINGS (LOSS) FROM DISCONTINUED OPERATIONS, NET OF TAXES	211	(1)	422	(2)
NET EARNINGS	$ 9,509	$ 6,914	$ 16,242	$ 15,414
BASIC EARNINGS PER SHARE
Continuing operations (in dollars per share)	$ 0.14	$ 0.11	$ 0.25	$ 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)	$ 0.15	$ 0.11	$ 0.25	$ 0.24
DILUTED EARNINGS PER SHARE
Continuing operations (in dollars per share)	$ 0.14	$ 0.11	$ 0.24	$ 0.24
Discontinued operations (in dollars per share)	$ 0.01	$ 0.00	$ 0.01	$ 0.00
TOTAL DILUTED NET EARNINGS PER SHARE (in dollars per share)	$ 0.15	$ 0.11	$ 0.25	$ 0.24
WEIGHTED AVERAGE SHARES
Basic (in shares)	64,285	64,050	64,217	63,931
Diluted (in shares)	65,207	64,859	65,174	64,692