Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2012

Payables and Accruals [Abstract]

Accrued liabilities included in other current liabilities

Accrued liabilities included in other current liabilities as of December 31, 2012 and 2011 consist of the following:

	As of December 31,
	2012		2011
	(in thousands)
Federal excise and other passenger taxes and fees payable	$	23,401	$	17,813
Aircraft maintenance	22,319		7,816
Salaries and wages	21,057		17,123
Airport expenses	16,024		10,682
Fuel	11,219		87
Aircraft and facility rent	8,020		7,206
Current portion of tax receivable agreement	7,987		27,399
Other	11,287		10,730
Accrued liabilities	$	121,314	$	98,856