Debt Obligations (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long term obligations consisted of the following (in thousands):

	December 31,			December 31,
	2013			2012
Unsubordinated term loan	$	131,250		$	144,375
Revolving credit facility	190,500			143,000
Aircraft loans	55,015			63,156
Promissory note due to DHL, unsecured	7,750			13,950
Total long term obligations	384,515			364,481
Less: current portion	(23,721		)	(21,265		)
Total long term obligations, net	$	360,794		$	343,216

Schedule of Maturities of Long-term Debt

The scheduled annual principal payments on long term debt, as of December 31, 2013, for the next five years are as follows (in thousands):

	Principal Payments
2014	$	23,721
2015	24,344
2016	33,865
2017	291,195
2018	3,640
2019 and beyond	7,750
	$	384,515