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Stockholders' Equity (Details) - USD ($)
Jan. 02, 2024
Dec. 02, 2022
Sep. 30, 2024
Sep. 30, 2023
Class Of Stock [Line Items]        
Common stock, par value (in dollars per share)     $ 0.001 $ 0.001
Common stock, shares authorized (in shares)     290,000,000 290,000,000
Common stock, shares issued (in shares)     124,376,000 107,312,000
Common stock, shares outstanding (in shares)     124,376,000 107,312,000
Preferred stock, par value (in dollars per share)     $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares)     5,000,000 5,000,000
Preferred stock, shares issued (in shares)     0 0
Preferred stock, shares outstanding (in shares)     0 0
Common stock reserved for issuance (in shares)     4,600,465  
ATM Agreement        
Class Of Stock [Line Items]        
Shares issued     0  
ATM Agreement | Maximum        
Class Of Stock [Line Items]        
Common stock shares value reserved for future issuance   $ 250,000,000    
Percentage of commission to sales agent   3.00%    
Underwriting Agreement        
Class Of Stock [Line Items]        
Shares of common stock issued (in shares) 15,790,000      
Common stock offering price (in dollars per share) $ 28.50      
Aggregate purchase price by investors $ 450,000,000.0      
Net proceeds $ 429,300,000      
2004 Equity Incentive Plan, 2013 Equity Incentive Plan, 2021 Equity Incentive Plan and Inducement Grants        
Class Of Stock [Line Items]        
Common stock reserved for issuance (in shares)     11,492,293 12,709,837