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Share-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 02, 2021
Jan. 04, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Expense $ 5,300 $ 5,000
Minimum | PSUs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares that may be issued (in shares) 0  
Maximum | PSUs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares that may be issued (in shares) 500,000