Financial Instruments and Risk Management (Tables)

3 Months Ended

Mar. 31, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Components of aircraft fuel expense

The following table summarizes the components of aircraft fuel expense for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016		2015
	(in thousands)
Into-plane fuel cost	$	85,982	$	108,124
Realized losses (gains) related to fuel derivative contracts, net	—		2,607
Unrealized losses (gains) related to fuel derivative contracts, net	—		1,695
Aircraft fuel	$	85,982	$	112,426