Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies Goodwill (Details)

v3.19.1
Summary of Significant Accounting Policies Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Goodwill [Line Items]      
Impairment of Long-Lived Assets to be Disposed of $ 837 $ 1,569 $ 0
Goodwill 803,847 620,503  
Goodwill, Acquired During Period 185,612    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) (2,268)    
United States (excl recent acquisitions) [Domain]      
Goodwill [Line Items]      
Goodwill 577,556 577,556  
Goodwill, Acquired During Period 0    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) 0    
ST Fastening Systems [Member]      
Goodwill [Line Items]      
Goodwill 9,045 8,881  
Goodwill, Acquired During Period 0    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) 164    
Mexico (excl recent acquisitions) [Domain]      
Goodwill [Line Items]      
Goodwill 3,696 3,694  
Goodwill, Acquired During Period 0    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) 2    
Big Time Products Canada [Domain]      
Goodwill [Line Items]      
Goodwill 0 0  
Goodwill, Acquired During Period 0    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) 0    
MInuteKey Canada [Domain]      
Goodwill [Line Items]      
Goodwill 0 0  
Goodwill, Acquired During Period 0    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) 0    
Canada (excl recent acquisitions) [Domain]      
Goodwill [Line Items]      
Goodwill 27,938 30,372  
Goodwill, Acquired During Period 0    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) (2,434)    
Big Time Products - United States [Domain]      
Goodwill [Line Items]      
Goodwill 127,323 0  
Goodwill, Acquired During Period 127,323    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) 0    
MinuteKey United States [Domain]      
Goodwill [Line Items]      
Goodwill 58,289 0  
Goodwill, Acquired During Period 58,289    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) 0    
Big Time Products Mexico [Domain]      
Goodwill [Line Items]      
Goodwill 0 $ 0  
Goodwill, Acquired During Period 0    
Goodwill, Written off Related to Sale of Business Unit 0    
Goodwill, Other Increase (Decrease) $ 0