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Revenue from Contracts with Customers - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 02, 2021
Jan. 04, 2020
Oct. 03, 2020
Disaggregation of Revenue [Line Items]      
Deferred Revenue $ 55,500   $ 55,600
Transferred over Time [Member]      
Disaggregation of Revenue [Line Items]      
Percentage of Revenue 91.00% 91.00%