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Debt - Additional Information (Details) - USD ($)
3 Months Ended
Sep. 27, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Unamortized debt issuance costs $ 300,000 $ 1,100,000
Amount drew down during the period, on line of credit 16,500,000  
Long-term debt, gross 75,000,000.0  
Borrowing capacity 4,000,000.0 $ 0
Revolving credit facility    
Debt Instrument [Line Items]    
Unamortized debt issuance costs $ 0  
Debt, weighted average interest rate 2.16% 2.47%
Long-term debt, gross $ 0 $ 17,500,000
Borrowing capacity 150,000,000.0 $ 132,500,000
Revolving credit facility | Reclassification    
Debt Instrument [Line Items]    
Unamortized debt issuance costs $ (500,000)