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Balance Sheet Details - Inventories (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Balance Sheet Related Disclosures [Abstract]    
Raw materials $ 7,237 $ 5,020
Work-in-process 1,908 1,032
Finished goods 55,393 57,020
Inventories, gross 64,538 63,072
Less reserve for excess and obsolete finished goods (19,630) (21,325)
Inventories, net $ 44,908 $ 41,747