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Goodwill, Other Intangible Assets and Other Assets - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Dec. 31, 2016
Business Acquisition [Line Items]          
Goodwill $ 41,041   $ 41,041   $ 41,041
Amortization of Acquired Intangible Assets $ 2,300 $ 900 $ 5,500 $ 2,600  
Minimum          
Business Acquisition [Line Items]          
Estimated useful life of intangible assets     9 months    
Maximum          
Business Acquisition [Line Items]          
Estimated useful life of intangible assets     13 years