Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 343,328	$ 82,714
Restricted cash		72,736
Accounts receivable, net	15,425	9,471
Deferred income taxes	20,738	51,492
Other current assets	63,217	34,806
Total current assets	442,708	251,219
Property and equipment:
Flight equipment	4,182	3,901
Ground and other equipment	46,608	39,441
Less accumulated depreciation	(27,580)	(24,013)
Total property and equipment	23,210	19,329
Deposits on flight equipment purchase contracts	91,450	44,188
Prepaid aircraft maintenance to lessors	120,615	116,857
Long-term deferred income taxes	0	1,319
Security deposits and other long-term assets	67,830	42,845
Total assets	745,813	475,757
Current liabilities:
Accounts payable	15,928	13,360
Air traffic liability	112,280	104,788
Other current liabilities	98,856	73,041
Current maturities of long-term debt and obligations, due to related parties		20,000
Current maturities of long-term debt and obligations, due to non-related parties		3,240
Total current liabilities	227,064	214,429
Deferred credits and other long-term liabilities	52,043	29,101
Due to related parties, less current maturities		245,621
Long-term debt, less current maturities		11,966
Mandatorily redeemable preferred stock		79,717
Shareholders' equity (deficit)
Additional paid-in-capital	496,136	676
Treasury Stock, at cost 8,215 shares in 2011, 0 shares in 2010	(129)
Accumulated deficit	(29,308)	(105,756)
Total shareholders' equity (deficit)	466,706	(105,077)
Total liabilities and shareholders' equity (deficit)	745,813	475,757
Class A Common Stock [Member]
Shareholders' equity (deficit)
Common stock		2
Class B Common Stock [Member]
Shareholders' equity (deficit)
Common stock		1
Common Stock [Member]
Shareholders' equity (deficit)
Common stock	6
Nonvoting Common Stock [Member]
Shareholders' equity (deficit)
Common stock	$ 1