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Benefit Plans - Change in Plan Assets (Details) - Pension Plan - USD ($)
$ in Thousands
12 Months Ended
Oct. 02, 2021
Oct. 03, 2020
Change in plan assets    
Fair value of plan assets, beginning of year $ 122,482 $ 118,048
Actual return on plan assets 17,188 12,147
Employer contribution 4,920 500
Benefits paid (7,253) (8,213)
Fair value of plan assets, end of year $ 137,337 $ 122,482