Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details)

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Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 27, 2021
Sep. 26, 2020
Mar. 28, 2020
Dec. 28, 2019
Sep. 28, 2019
Level 3          
Liabilities:          
Liability for contingent consideration $ 1,180 $ 1,369 $ 1,310   $ 7,369
Recurring          
Liabilities:          
Liability for contingent consideration 1,180 1,369 1,310    
Total liabilities 1,180 1,369 1,310    
Recurring | Level 1          
Liabilities:          
Liability for contingent consideration 0 0 0    
Total liabilities 0 0 0    
Recurring | Level 2          
Liabilities:          
Liability for contingent consideration 0 0 0    
Total liabilities 0 0 0    
Recurring | Level 3          
Liabilities:          
Liability for contingent consideration 1,180 1,369 1,310    
Total liabilities $ 1,180 $ 1,369 $ 1,310    
Segrest, Inc. | Recurring          
Liabilities:          
Liability for contingent consideration       $ 6,000