Condensed Statements Of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating revenues:
Passenger	$ 272,626	$ 273,466
Non-ticket	265,517	219,889
Total operating revenues	538,143	493,355
Operating expenses:
Aircraft fuel	85,982	112,426
Salaries, wages and benefits	116,410	88,961
Aircraft rent	52,202	52,788
Landing fees and other rents	34,807	30,546
Distribution	22,933	20,497
Maintenance, materials and repairs	20,940	19,160
Depreciation and amortization	23,109	14,863
Other operating	64,045	43,843
Loss on disposal of assets	214	595
Special charges	16,202	425
Total operating expenses	436,844	384,104
Operating income	101,299	109,251
Other (income) expense:
Interest expense	8,060	2,812
Capitalized interest	(3,325)	(2,533)
Interest income	(1,566)	(134)
Other expense	70	72
Total other (income) expense	3,239	217
Income before income taxes	98,060	109,034
Provision for income taxes	36,140	40,032
Net income	$ 61,920	$ 69,002
Basic earnings per share (in dollars per share)	$ 0.87	$ 0.94
Diluted earnings per share (in dollars per share)	$ 0.86	$ 0.94