v3.22.2.2
Stockholders' Equity (Details) - USD ($)
1 Months Ended
Aug. 31, 2020
Sep. 30, 2022
Sep. 30, 2021
Class Of Stock [Line Items]      
Common stock, par value (in dollars per share)   $ 0.001 $ 0.001
Common stock, shares authorized (in shares)   145,000,000 145,000,000
Common stock, shares issued (in shares)   105,960,000 104,327,000
Common stock, shares outstanding (in shares)   105,960,000 104,327,000
Preferred stock, par value (in dollars per share)   $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares)   50,000,000 50,000,000
Preferred stock, shares issued (in shares)   0 0
Preferred stock, shares outstanding (in shares)   0 0
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%    
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)   14,000,392 15,228,479