Debt Obligations (Tables)

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

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

	March 31,			December 31,
	2013			2012
Unsubordinated term loan	$	142,500		$	144,375
Revolving credit facility	194,000			143,000
Aircraft loans	61,173			63,156
Promissory note due to DHL, unsecured	12,400			13,950
Total long term obligations	410,073			364,481
Less: current portion	(23,282		)	(21,265		)
Total long term obligations, net	$	386,791		$	343,216