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Supplemental Financial Information - Schedule of Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Supplemental Financial Information [Abstract]    
Raw materials $ 74 $ 176
Work-in-process 42,524 52,003
Finished goods 130,970 154,144
Total inventories $ 173,568 $ 206,323