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Balance Sheet Details - Summary of Accrued Expenses (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Royalties	$ 3,342	$ 1,544
Payroll and related expenses	5,571	5,315
Warranty obligations	480	480
Market development funds and price protection	34	320
Professional fees	3,894	4,793
Accrued interest	1,929	275
Deferred revenue	1,361	1,656
Restructuring	1,160	837
Acquisition-related liabilities	13,186	7,912
Divestiture-related liabilities	0	463
Other	5,128	4,302
Total accrued expenses and other current liabilities	$ 36,085	$ 27,897

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