Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2013

Long-term Debt

Schedule of long-term debt

Long-term debt consisted of the following as of December 31, 2013 and 2012 (in thousands):

	December 31, 2013			December 31, 2012
Notes payable to banks, due in semi-annual installments, variable interest based on LIBOR, or with interest rates ranging from 1.34% to 2.55% through 2014 to 2020, secured by aircraft	$	224,915		$	273,515
Notes payable to a financing company, due in semi-annual installments, variable interest based on LIBOR, or with interest rates ranging from 0.70% to 2.36% through 2014 to 2021, secured by aircraft		392,660			434,716
Notes payable to banks, due in semi-annual installments plus interest at 6.06% to 7.18% through 2021, secured by aircraft		149,477			168,937
Notes payable to a financing company, due in semi-annual installments plus interest at 5.78% to 6.23% through 2019, secured by aircraft		32,528			39,548
Notes payable to banks, due in monthly installments plus interest of 3.15% to 8.18% through 2025, secured by aircraft		623,315			665,867
Notes payable to banks, due in semi-annual installments, plus interest at 6.05% through 2020, secured by aircraft		15,740			17,872
Notes payable to a bank, due in monthly installments interest based on LIBOR plus interest at 2.00% to 4.00% through 2016, secured by aircraft		31,933			41,567
Long-term debt		1,470,568			1,642,022
Less current maturities		(177,389	)		(171,454	)
Long-term debt, net of current maturities		1,293,179			1,470,568

Schedule of maturities of long-term debt

The aggregate amounts of principal maturities of long-term debt as of December 31, 2013 were as follows (in thousands):

2014	177,389
2015	184,510
2016	188,240
2017	161,735
2018	139,020
Thereafter	619,674
	1,470,568