Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2013

Payables and Accruals [Abstract]

Accrued liabilities included in other current liabilities

ther current liabilities as of March 31, 2013 and December 31, 2012 consist of the following:

	March 31, 2013		December 31, 2012
	(in thousands)
Aircraft maintenance	34,881		22,319
Federal excise and other passenger taxes and fees payable	27,507		23,401
Salaries and wages	20,933		21,057
Airport expenses	15,919		16,024
Income tax payable	10,437		—
Aircraft and facility rent	8,074		8,020
Tax receivable agreement	7,987		7,987
Fuel	7,277		11,219
Other	16,918		11,287
Accrued liabilities	$	149,933	$	121,314