Quarterly report pursuant to Section 13 or 15(d)

Goodwill - Narrative (Details)

v3.21.1
Goodwill - Narrative (Details)
3 Months Ended 6 Months Ended
Mar. 27, 2021
USD ($)
Mar. 28, 2020
USD ($)
Mar. 27, 2021
USD ($)
segment
Mar. 28, 2020
USD ($)
Sep. 26, 2020
USD ($)
Dec. 28, 2019
USD ($)
Goodwill [Line Items]            
Number of reporting units | segment     2      
Impairment of goodwill $ 0 $ 0 $ 0 $ 0    
Goodwill $ 289,955,000 $ 289,854,000 $ 289,955,000 $ 289,854,000 $ 289,955,000  
Pet Segment | C&S Products            
Goodwill [Line Items]            
Goodwill           $ 3,800,000