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Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Details)
 3 Months Ended 12 Months Ended
Jan. 02, 2021
USD ($)
Dec. 28, 2019
USD ($)
Jan. 02, 2021
USD ($)
Segment
Dec. 28, 2019
USD ($)
Dec. 29, 2018
USD ($)
Nature of Operations [Line Items]          
Number of reportable segments | Segment     3    
Revenue recognized from contract liabilities     $ 30,426,000 $ 29,220,000  
Revenue, remaining performance obligation, amount $ 14,916,000   14,916,000    
Due from bankers acceptances drafts 9,445,000 $ 5,230,000 9,445,000 5,230,000  
Finite and indefinite lived intangible assets acquired     3,907,000    
Impairment of intangible assets, finite-lived 1,861,000   $ 1,861,000    
Weighted average useful life of acquired intangible assets     12 years    
Amortization expense of acquired intangible assets     $ 19,125,000 20,154,000 $ 14,182,000
Acquisition transaction costs     485,000 843,000 1,321,000
Estimated Future Amortization Expense [Abstract]          
2021 18,365,000   18,365,000    
2022 17,398,000   17,398,000    
2023 15,849,000   15,849,000    
2024 14,839,000   14,839,000    
2025 12,729,000   12,729,000    
Thereafter 57,358,000   57,358,000    
Goodwill and Intangible Assets Disclosure [Abstract]          
Goodwill, impairment loss     0 0  
Impairment of intangible assets, finite-lived 1,861,000   1,861,000    
Impairment charges     1,861,000 2,336,000 $ 0
Finite-lived intangible assets $ 136,538,000 149,882,000 $ 136,538,000 149,882,000  
Joint Venture with an Italian Company          
Nature of Operations [Line Items]          
Remaining ownership interest with an option to purchase 50.00%   50.00%    
Italian Company | Joint Venture with an Italian Company          
Nature of Operations [Line Items]          
Ownership interest 50.00%   50.00%    
Tradenames          
Goodwill and Intangible Assets Disclosure [Abstract]          
Indefinite-lived intangible assets $ 24,427,000 24,014,000 $ 24,427,000 24,014,000  
Madill | Tradenames          
Goodwill and Intangible Assets Disclosure [Abstract]          
Indefinite-lived intangible assets   1,300,000   1,300,000  
Product technology          
Goodwill and Intangible Assets Disclosure [Abstract]          
Finite-lived intangible assets 23,451,000 26,483,000 23,451,000 26,483,000  
Tradenames          
Goodwill and Intangible Assets Disclosure [Abstract]          
Finite-lived intangible assets 2,799,000 3,679,000 2,799,000 3,679,000  
Wood Processing Systems          
Nature of Operations [Line Items]          
Impairment of intangible assets, finite-lived   2,336,000      
Goodwill and Intangible Assets Disclosure [Abstract]          
Impairment of intangible assets, finite-lived   2,336,000      
Impairment charges       2,336,000  
Indefinite-lived intangible assets $ 481,000   $ 481,000    
Wood Processing Systems | Tradenames          
Goodwill and Intangible Assets Disclosure [Abstract]          
Indefinite-lived intangible assets   700,000   700,000  
Wood Processing Systems | Product technology          
Nature of Operations [Line Items]          
Impairment of intangible assets, finite-lived   1,636,000      
Goodwill and Intangible Assets Disclosure [Abstract]          
Impairment of intangible assets, finite-lived   1,636,000      
Scenario, Adjustment | Madill | Tradenames          
Goodwill and Intangible Assets Disclosure [Abstract]          
Indefinite-lived intangible assets   (1,300,000)   (1,300,000)  
Scenario, Adjustment | Tradenames | Madill          
Goodwill and Intangible Assets Disclosure [Abstract]          
Finite-lived intangible assets   $ 1,300,000   $ 1,300,000