Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 116,607	$ 89,557
Restricted cash	11,873	10,046
Short-term investments	284,697	239,139
Accounts receivable, net	14,616	18,635
Expendable parts, supplies and fuel, net of allowance for obsolescence of $1,055 and $875 at March 31, 2013 and December 31, 2012, respectively	15,504	18,432
Prepaid expenses	26,658	24,371
Deferred income taxes	851	796
Other current assets	3,871	14,291
Total current assets	474,677	415,267
Property and equipment, net	346,030	351,204
Restricted cash, net of current portion	150	150
Long-term investments	30,488	24,030
Investment in and advances to unconsolidated affiliates, net	2,716	2,007
Deposits and other assets	5,192	5,536
Total assets	859,253	798,194
Current liabilities:
Current maturities of long-term debt	11,873	11,623
Accounts payable	18,933	14,533
Accrued liabilities	43,255	36,476
Air traffic liability	185,901	147,914
Total current liabilities	259,962	210,546
Long-term debt and other long-term liabilities:
Long-term debt, net of current maturities	136,128	139,229
Deferred income taxes	50,957	46,695
Total liabilities	447,047	396,470
Stockholders' equity:
Common stock, par value $.001, 100,000,000 shares authorized; 21,983,851 and 21,899,155 shares issued; 19,121,738 and 19,333,516 shares outstanding, as of March 31, 2013 and December 31, 2012, respectively	22	22
Treasury stock, at cost, 2,862,113 and 2,565,639 shares at March 31, 2013 and December 31, 2012, respectively	(126,009)	(102,829)
Additional paid in capital	202,669	201,012
Accumulated other comprehensive loss, net	(17)	(69)
Retained earnings	334,257	302,325
Total Allegiant Travel Company stockholders' equity	410,922	400,461
Noncontrolling interest	1,284	1,263
Total equity	412,206	401,724
Total liabilities and stockholders' equity	$ 859,253	$ 798,194