Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 632,784	$ 530,631
Accounts receivable, net	22,685	23,246
Deferred income taxes	9,643	16,243
Prepaid expenses and other current assets	66,029	78,955
Total current assets	731,141	649,075
Property and equipment:
Flight equipment	204,462	12,744
Ground and other equipment	57,012	48,090
Less accumulated depreciation	(36,099)	(25,221)
Total property and equipment	225,375	35,613
Deposits on flight equipment purchase contracts	242,881	157,669
Aircraft maintenance deposits	213,147	161,484
Deferred heavy maintenance, net	123,108	125,288
Other long-term assets	67,329	51,636
Total assets	1,602,981	1,180,765
Current liabilities:
Accounts payable	13,402	23,104
Air traffic liability	188,870	167,627
Current maturities of long-term debt	10,431	0
Other current liabilities	152,921	145,262
Total current liabilities	365,624	335,993
Long-term debt less current maturities	135,817	0
Long-term deferred income taxes	76,010	48,916
Deferred gains and other long-term liabilities	22,455	26,739
Shareholders’ equity:
Common stock: Common stock, $0.0001 par value, 240,000,000 shares authorized at December 31, 2014 and 2013, respectively; 72,907,827 and 72,774,920 issued and 72,775,685 and 72,670,673 outstanding as of December 31, 2014 and 2013, respectively	7	7
Additional paid-in-capital	526,173	515,331
Treasury stock, at cost: 132,142 and 104,247 shares as of December 31, 2014 and 2013, respectively	(3,921)	(2,291)
Retained earnings	481,534	256,070
Accumulated other comprehensive income (loss)	(718)	0
Total shareholders’ equity	1,003,075	769,117
Total liabilities and shareholders’ equity	$ 1,602,981	$ 1,180,765