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Balance Sheet Details - Inventory (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Balance Sheet Related Disclosures [Abstract] |  |
Work-in-process | $ 14,525 | $ 17,618
Finished goods | 16,985 | 24,120
Inventory Total | $ 31,510 | $ 41,738

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