Annual report pursuant to Section 13 and 15(d)

Acquisitions (Details)

v3.8.0.1
Acquisitions (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Dec. 31, 2015
Nov. 08, 2017
Payments to Acquire Businesses, Gross $ 47,188 $ 0 $ 0  
ST Fastening Systems [Domain]        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables       $ 3,975
Business Acquisition, Pro Forma Revenue 5,900      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory       7,820
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment       16,281
Business Combination Goodwill       8,881
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill       13,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets       6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets       50,463
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities       $ (3,275)
Business Acquisition, Pro Forma Net Income (Loss) (500)      
Payments to Acquire Businesses, Gross $ 47,188