Inventories (Tables)

12 Months Ended

Dec. 31, 2013

Inventory Disclosure [Abstract]

Components of Inventories

The components of inventories are as follows (in thousands):

	As of
	December 31, 2013		December 31, 2012
Raw material	$	31,335	$	31,350
Work in process		415		921
Deferred costs of long-term contracts		294		604
Finished goods		101,540		104,137
Total inventories, gross		133,584		137,012
Inventory reserves		(12,561)		(13,655)
Total inventories, net	$	121,023	$	123,357