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Stock-based Compensation - Performance Stock Units Activity (Details) - Performance Shares - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Mar. 30, 2024
Sep. 30, 2023
Number of Units    
Outstanding, beginning balance (in shares) 265,191  
Granted (in shares) 499,716  
Released (in shares) (80,827)  
Outstanding, ending balance (in shares) 684,080  
Weighted-Average Grant Date Fair Value    
Outstanding, beginning balance (in USD per share) $ 21.27  
Granted (in USD per share) 17.64  
Released (in USD per share) 23.35  
Outstanding, ending balance (in USD per share) $ 18.37  
Aggregate Intrinsic Value $ 13,039 $ 3,424