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Acquisitions and Divestitures (Narrative) (Details) - USD ($)
3 Months Ended 12 Months Ended
Nov. 08, 2018
Apr. 10, 2018
Jan. 18, 2016
Sep. 29, 2018
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Jun. 01, 2016
Business Acquisition [Line Items]                
Acquisition-related expenses         $ 1,500,000 $ 0 $ 0  
Additional shares purchased by noncontrolling interest       $ 800,000 800,000   $ 19,600,000  
Mastergear | Operating Expenses | Disposal Group, Disposed of by Sale, Not Discontinued Operations                
Business Acquisition [Line Items]                
Gain on disposal         $ 100,000 $ 11,600,000    
Mastergear | Power Transmission Solutions | Disposal Group, Disposed of by Sale, Not Discontinued Operations                
Business Acquisition [Line Items]                
Consideration for disposal               $ 25,700,000
Nicotra Gebhardt (NG)                
Business Acquisition [Line Items]                
Consideration transferred   $ 161,500,000            
Cash acquired   $ 8,500,000            
Israeli Subsidiary                
Business Acquisition [Line Items]                
Consideration transferred $ 900,000              
Elco Group B.V.                
Business Acquisition [Line Items]                
Consideration transferred     $ 19,600,000          
Equity interest in acquiree     55.00%          
Equity interest in acquiree including subsequent acquisition     100.00%