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Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Details)
 3 Months Ended 12 Months Ended
Dec. 28, 2019
USD ($)
Dec. 28, 2019
USD ($)
Segment
Dec. 29, 2018
USD ($)
Dec. 30, 2017
USD ($)
Dec. 30, 2018
Nature of Operations [Line Items]          
Number of reportable segments | Segment   3      
Revenue recognized from contract liabilities   $ 29,220,000 $ 36,556,000    
Revenue, remaining performance obligation, amount $ 13,176,000 13,176,000      
Percentage of completion revenue       $ 27,676,000  
Customer deposits 24,012,000 24,012,000 26,987,000    
Due from bankers acceptances drafts 5,230,000 $ 5,230,000 7,976,000    
Weighted average useful life of acquired intangible assets   12 years      
Amortization expense of acquired intangible assets   $ 20,154,000 14,182,000 11,957,000  
Acquisition transaction costs   843,000 1,321,000 $ 5,375,000  
Estimated Future Amortization Expense [Abstract]          
2020 18,714,000 18,714,000      
2021 17,875,000 17,875,000      
2022 16,797,000 16,797,000      
2023 15,164,000 15,164,000      
2024 14,272,000 14,272,000      
Thereafter 67,060,000 67,060,000      
Goodwill and Intangible Assets Disclosure [Abstract]          
Goodwill, impairment loss   0 0    
Impairment of intangible assets, indefinite-lived (excluding goodwill) 2,336,000 0 0    
Finite-lived intangible assets $ 149,882,000 $ 149,882,000 96,862,000    
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%      
Assets | Accounting Standards Update 2016-02          
Recent Accounting Pronouncements [Abstract]          
Cumulative effect of new accounting principle in period of adoption, percent         2.30%
Liabilities | Accounting Standards Update 2016-02          
Recent Accounting Pronouncements [Abstract]          
Cumulative effect of new accounting principle in period of adoption, percent         4.80%
Tradenames          
Goodwill and Intangible Assets Disclosure [Abstract]          
Indefinite-lived intangible assets $ 24,014,000 $ 24,014,000 16,485,000    
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 26,483,000 26,483,000 21,261,000    
Tradenames          
Goodwill and Intangible Assets Disclosure [Abstract]          
Finite-lived intangible assets 3,679,000 3,679,000 $ 2,857,000    
Wood Processing Systems          
Nature of Operations [Line Items]          
Impairment of intangible assets, finite-lived 2,336,000        
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        
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