v3.26.1
Stock-Based Compensation and Stockholders' Equity - Stock Purchase Right and Restricted Stock Unit Activity (Details) - $ / shares
shares in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Restricted stock units and Performance stock units        
Number of Shares        
Beginning balance (in shares) 10,229 10,325 12,993  
Granted (in shares) 7,501 7,897 7,186  
Vested and released (in shares) (5,992) (6,446) (7,613)  
Forfeited (in shares) (1,947) (1,547) (2,241)  
Ending balance (in shares) 9,791 10,229 10,325 12,993
Weighted Average Grant Date Fair Value        
Beginning balance (in dollars per share) $ 2.67 $ 5.36 $ 8.56  
Granted (in dollars per share) 1.85 2.10 3.85  
Vested and released (in dollars per share) 2.84 5.99 8.87  
Forfeited (in dollars per share) 2.38 3.88 7.13  
Ending balance (in dollars per share) $ 2.00 $ 2.67 $ 5.36 $ 8.56
Weighted Average Remaining Contractual Term (in Years) 10 months 9 days 11 months 8 days 1 year 9 months 1 year 10 months 2 days
Performance stock units        
Number of Shares        
Beginning balance (in shares) 3,880 2,531 624  
Granted (in shares) 1,295 1,793 2,023  
Vested and released (in shares) (676)      
Forfeited (in shares) (950) (444) (116)  
Ending balance (in shares) 3,549 3,880 2,531 624
Weighted Average Grant Date Fair Value        
Beginning balance (in dollars per share) $ 2.88 $ 4.38 $ 11.30  
Granted (in dollars per share) 1.82 1.91 3.25  
Vested and released (in dollars per share) 1.88      
Forfeited (in dollars per share) 3.63 7.56 21.83  
Ending balance (in dollars per share) $ 2.48 $ 2.88 $ 4.38 $ 11.30
Weighted Average Remaining Contractual Term (in Years) 7 months 24 days 10 months 6 days 1 year 1 month 28 days 1 year 5 months 12 days