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Supplemental Financial Information - Schedule of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Supplemental Financial Information [Abstract]
Raw materials	$ 71	$ 176
Work-in-process	39,281	52,003
Finished goods	141,719	154,144
Total inventories	$ 181,071	$ 206,323

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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