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Equity Incentive Plans - Schedule of Restricted Stock Unit Grants for the Period (Parenthetical) (Details)
12 Months Ended
Sep. 30, 2025
Installment
Performance-Based Restricted Stock Units  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period 3 years
Number of equal annual installments 3
Performance-Based Restricted Stock Units | Maximum Two Times | Maximum | Catch-Up Provision  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of RSUs two times
Service-Based Restricted Stock Units  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of equal annual installments 3
TSR Units | Maximum | Catch-Up Provision  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Percentage of number of RSUs 100.00%
TSR Units | Maximum Two Times | Maximum | Catch-Up Provision  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of RSUs two times