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Intangible Assets - Schedule of Acquired Intangible Assets by Major Asset Class (Detail)
$ in Thousands
9 Months Ended
Sep. 30, 2016
USD ($)
Finite-Lived Intangible Assets [Line Items]  
Gross $ 1,353
Accumulated amortization (112)
Net book value 1,241
Purchased Technology [Member]  
Finite-Lived Intangible Assets [Line Items]  
Gross 265
Accumulated amortization (20)
Net book value 245
Customer Relationships [Member]  
Finite-Lived Intangible Assets [Line Items]  
Gross 999
Accumulated amortization (83)
Net book value $ 916
Trademarks/Trade Names [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life 2 years
Gross $ 38
Accumulated amortization (5)
Net book value $ 33
Non-Compete [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life 3 years
Gross $ 51
Accumulated amortization (4)
Net book value $ 47
Minimum [Member] | Purchased Technology [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life 5 years
Minimum [Member] | Customer Relationships [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life 3 years
Maximum [Member] | Purchased Technology [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life 6 years
Maximum [Member] | Customer Relationships [Member]  
Finite-Lived Intangible Assets [Line Items]  
Useful life 6 years