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Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Components Of Inventory [Line Items]
Raw materials	$ 176	$ 236
Work-in-process	52,809	78,886
Finished goods	156,119	100,913
Total inventories	$ 209,104	$ 180,035

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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