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Share-Based Compensation - Time-Based Options (Details)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Sep. 30, 2020
tranche
$ / shares
Sep. 27, 2024
USD ($)
$ / shares
Sep. 29, 2023
USD ($)
$ / shares
Sep. 30, 2022
USD ($)
$ / shares
TBOs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Requisite service period   4 years    
Award vesting period   3 years    
Award expiration period   10 years    
Expected volatility   43.00% 42.00% 41.00%
Expected life (in years)   6 years 3 months 6 years 3 months 6 years
Risk-free interest rate, minimum   3.99% 3.65% 1.26%
Risk-free interest rate, maximum   4.41% 4.28% 2.96%
Weighted-average grant-date fair value (in dollars per share) | $ / shares   $ 12.04 $ 11.76 $ 9.11
Total intrinsic value exercised (in millions) | $   $ 15.3 $ 12.0 $ 6.4
Total fair value that vested | $   10.6 15.7 13.8
TBO-Rs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total intrinsic value exercised (in millions) | $   0.1 0.0 0.0
Total fair value that vested | $   $ 6.9 $ 6.9 $ 0.3
Number of tranches | tranche 6      
Exercise price incremental amount (in dollars per share) | $ / shares $ 7.21      
Minimum | TBOs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected dividend yield   1.19% 1.39% 1.64%
Minimum | TBO-Rs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price (In dollars per share) | $ / shares 25.24      
Maximum | TBOs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected dividend yield   1.35% 1.64% 1.80%
Maximum | TBO-Rs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price (In dollars per share) | $ / shares $ 61.29