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Balance Sheet Components - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property and equipment, gross	$ 177,296	$ 176,747
Less: accumulated depreciation	(53,639)	(47,727)
Property and equipment, net	123,657	129,020
Laboratory Equipment [Member]
Property and equipment, gross	18,533	18,233
Computer Equipment [Member]
Property and equipment, gross	5,678	5,701
Furniture and Fixtures [Member]
Property and equipment, gross	5,533	5,361
Leasehold improvements [Member]
Property and equipment, gross	93,564	93,380
Building shell [Member]
Property and equipment, gross	53,879	53,879
Construction in progress [Member]
Property and equipment, gross	$ 109	$ 193

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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+ References

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