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NET INVENTORIES (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
NET INVENTORIES
Finished products	$ 52,794	$ 56,596
Work-in-process	36,766	32,468
Raw materials and purchased components	35,675	38,936
Inventories, net	$ 125,235	$ 128,000

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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