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INVENTORY
6 Months Ended
Jun. 30, 2012
INVENTORY  
INVENTORY

4.  INVENTORY

 

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

 

 

 

June 30,
2012

 

December 31,
2011

 

Parts and supplies

 

$

240,682

 

$

212,228

 

Work in progress

 

126,328

 

98,402

 

Finished goods

 

47,027

 

31,465

 

Inventory, net of reserves

 

$

414,037

 

$

342,095

 

 

As of June 30, 2012 and December 31, 2011, we had inventory reserves of $12.9 million and $14.0 million, respectively.