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Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Total
Common stock
Treasury stock
Additional paid-in capital
Accumulated deficit
Accumulated other comprehensive loss
Beginning balance (in shares) at Dec. 31, 2023   51,770        
Increase (Decrease) in Stockholders' Equity            
Common stock issued upon vesting of restricted stock   384        
Common stock issued for ESPP purchases   56        
Common stock sold through offerings (in shares)   0        
Ending balance (in shares) at Mar. 31, 2024   52,210        
Beginning balance, treasury stock (in shares) at Dec. 31, 2023     6,356      
Increase (Decrease) in Stockholders' Equity            
Tax withholding upon vesting of employee stock awards     121      
Ending balance, treasury stock (in shares) at Mar. 31, 2024     6,477      
Beginning balance at Dec. 31, 2023   $ 5 $ (166,345) $ 1,007,649 $ (481,671) $ (506)
Increase (Decrease) in Stockholders' Equity            
Common stock sold through offerings   0   0    
Stock-based compensation to employees and directors       4,776    
Common stock issued for ESPP purchases       935    
Net loss $ (73,928)       (73,928)  
Net other comprehensive income 4         4
Tax withholding upon vesting of employee stock awards     3,172      
Ending balance at Mar. 31, 2024 $ 287,747 $ 5 $ (169,517) 1,013,360 (555,599) (502)
Increase (Decrease) in Stockholders' Equity            
Common stock, shares outstanding (in shares)   45,733        
Common stock, shares outstanding (in shares) 53,069          
Beginning balance (in shares) at Dec. 31, 2024   59,560        
Increase (Decrease) in Stockholders' Equity            
Common stock issued upon vesting of restricted stock   275        
Common stock issued for ESPP purchases   91        
Common stock sold through offerings (in shares)   3,487        
Ending balance (in shares) at Mar. 31, 2025   63,413        
Beginning balance, treasury stock (in shares) at Dec. 31, 2024 6,491   6,491      
Increase (Decrease) in Stockholders' Equity            
Tax withholding upon vesting of employee stock awards     90      
Ending balance, treasury stock (in shares) at Mar. 31, 2025 6,581   6,581      
Beginning balance at Dec. 31, 2024 $ 162,732 $ 5 $ (169,676) 1,072,869 (740,466) 0
Increase (Decrease) in Stockholders' Equity            
Common stock sold through offerings   1   19,471    
Stock-based compensation to employees and directors       1,094    
Common stock issued for ESPP purchases       509    
Net loss (39,912)       (39,912)  
Net other comprehensive income 0         0
Tax withholding upon vesting of employee stock awards     527      
Ending balance at Mar. 31, 2025 $ 143,368 $ 6 $ (170,203) $ 1,093,943 $ (780,378) $ 0
Increase (Decrease) in Stockholders' Equity            
Common stock, shares outstanding (in shares) 56,832 56,832