Export Sales and Major Customers

12 Months Ended

Dec. 31, 2013

Export Sales and Major Customers [Abstract]

Export Sales and Major Customers

3.  Export Sales and Major Customers

     Orbital's revenues by geographic area, as determined by customer location, were as follows (in thousands):

	Years Ended December 31,
	2013		2012		2011
United States	$	1,225,217	$	1,155,003	$	1,035,090
Europe and Eurasia		91,838		150,746		146,623
Mexico and South America		8,071		96,147		131,240
East Asia		40,145		34,873		32,970
Total	$	1,365,271	$	1,436,769	$	1,345,923

       Approximately 83%,  79% and 71% of the company's revenues in 2013, 2012 and 2011, respectively, were generated under contracts with the U.S. Government and its agencies or under subcontracts with the U.S. Government's prime contractors.