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Inventory, net (Tables)
9 Months Ended
Sep. 30, 2013
Inventory, net  
Schedule of inventory, net of reserves

Inventory, net of reserves, consisted of the following amounts (in thousands):

 

 

 

September 30,
2013

 

December 31,
2012

 

Parts and supplies

 

$

233,312

 

$

232,737

 

Work in progress

 

176,115

 

120,930

 

Finished goods

 

51,677

 

34,043

 

Inventory, net

 

$

461,104

 

$

387,710