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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)
$ in Thousands
9 Months Ended
Jul. 02, 2021
Jun. 26, 2020
Goodwill and Intangible Assets Disclosure [Abstract]    
Goodwill impairment and asset write-downs $ 0 $ 198,600
Amortization of intangible assets $ 85,900 $ 87,400