Annual report pursuant to Section 13 and 15(d)

Transactions with Related Parties (Details)

v3.21.2
Transactions with Related Parties (Details) - Contract Packaging, Inc. - USD ($)
$ in Millions
12 Months Ended
Sep. 25, 2021
Sep. 26, 2020
Sep. 28, 2019
Related Party Transaction [Line Items]      
Percentage of shares held by CPI in Tech Pac 20.00% 20.00% 20.00%
Amount due to related party $ 1.1 $ 0.9  
Tech Pac      
Related Party Transaction [Line Items]      
Purchases products from related party $ 42.6 $ 31.3 $ 32.5