Accrued Liabilities

6 Months Ended

Jun. 30, 2013

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued Liabilities

Other current liabilities as of June 30, 2013 and December 31, 2012 consist of the following:

	June 30, 2013		December 31, 2012
	(in thousands)
Federal excise and other passenger taxes and fees payable	$	34,748	$	23,401
Aircraft maintenance	24,331		22,319
Salaries and wages	21,942		21,057
Airport expenses	18,095		16,024
Fuel	14,697		11,219
Aircraft and facility rent	8,065		8,020
Fuel derivatives	8,049		—
Tax receivable agreement	7,979		7,987
Other	13,610		11,287
Accrued liabilities	$	151,516	$	121,314