Inventory, net (Tables)

6 Months Ended

Jun. 30, 2013

Inventory, net

Schedule of inventory, net of reserves

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

	June 30,2013		December 31,2012
Parts and supplies	$	237,711	$	232,737
Work in progress	169,709		120,930
Finished goods	48,275		34,043
Inventory, net	$	455,695	$	387,710