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Acquisitions - Additional Information (Detail) - Stromag [Member]
$ in Thousands, € in Millions
12 Months Ended
Dec. 30, 2016
USD ($)
Dec. 30, 2016
EUR (€)
Dec. 31, 2016
USD ($)
Dec. 30, 2016
EUR (€)
Business Acquisition [Line Items]        
Business acquisition cash consideration $ 196,725 € 186.4    
Cash $ 8,758     € 8.3
Customer Relationships [Member]        
Business Acquisition [Line Items]        
Amortization period     15 years  
United States [Member]        
Business Acquisition [Line Items]        
Goodwill deductible for income tax purpose     $ 12,800