Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Components of inventories

Our inventories are valued at the lower of cost or market and computed on a first-in, first-out (FIFO) basis. Components of Inventories, net of reserves, are as follows (in thousands):

	March 31,		December 31,
	2014		2013
Parts and raw materials	$	73,241	$	75,815
Work in process	6,984		3,507
Finished goods	29,431		30,449
Inventories, net of reserves	$	109,656	$	109,771