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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Treasury Stock, Common
beginning of period (in shares) at Jan. 31, 2021   123,989,000        
Beginning of period at Jan. 31, 2021 $ 207,235 $ 130 $ 733,933 $ 2,422 $ (517,345) $ (11,905)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares)   1,069,000        
Exercise of stock options 12,111 $ 1 12,110      
Vested restricted stock units converted to common shares (in shares)   871,000        
Vested restricted stock units converted to common shares 0 $ 1 (1)      
Issuance of restricted stock (in shares)   4,000        
Issuance of restricted stock 0          
Issuance of common stock under employee stock purchase plan (in shares)   282,000        
Issuance of common stock under employee stock purchase plan 3,817   3,817      
Stock-based compensation 15,288   15,288      
Other comprehensive income (loss) 355     355    
Net loss (17,631)       (17,631)  
End of period (in shares) at Apr. 30, 2021   126,215,000        
End of period at Apr. 30, 2021 221,175 $ 132 765,147 2,777 (534,976) (11,905)
beginning of period (in shares) at Jan. 31, 2021   123,989,000        
Beginning of period at Jan. 31, 2021 207,235 $ 130 733,933 2,422 (517,345) (11,905)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (45,223)          
End of period (in shares) at Jul. 31, 2021   127,800,000        
End of period at Jul. 31, 2021 216,579 $ 134 788,149 2,769 (562,568) (11,905)
beginning of period (in shares) at Jan. 31, 2021   123,989,000        
Beginning of period at Jan. 31, 2021 207,235 $ 130 733,933 2,422 (517,345) (11,905)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares)   2,220,000        
Exercise of stock options 19,197 $ 2 19,195      
Vested restricted stock units converted to common shares (in shares)   4,402,000        
Vested restricted stock units converted to common shares 0 $ 4 (4)      
Issuance of restricted stock (in shares)   15,000        
Issuance of restricted stock 0          
Issuance of common stock under employee stock purchase plan (in shares)   531,000        
Issuance of common stock under employee stock purchase plan 6,485 $ 1 6,484      
Stock-based compensation 74,821   74,821      
Other comprehensive income (loss) (2,609)     (2,609)    
Net loss $ (93,259)       (93,259)  
End of period (in shares) at Jan. 31, 2022 131,156,986 131,157,000        
End of period at Jan. 31, 2022 $ 211,870 $ 137 834,429 (187) (610,604) (11,905)
beginning of period (in shares) at Apr. 30, 2021   126,215,000        
Beginning of period at Apr. 30, 2021 221,175 $ 132 765,147 2,777 (534,976) (11,905)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares)   402,000        
Exercise of stock options 2,274 $ 1 2,273      
Vested restricted stock units converted to common shares (in shares)   1,172,000        
Vested restricted stock units converted to common shares 0 $ 1 (1)      
Issuance of restricted stock (in shares)   11,000        
Issuance of restricted stock 0          
Stock-based compensation 20,730   20,730      
Other comprehensive income (loss) (8)     (8)    
Net loss (27,592)       (27,592)  
End of period (in shares) at Jul. 31, 2021   127,800,000        
End of period at Jul. 31, 2021 $ 216,579 $ 134 788,149 2,769 (562,568) (11,905)
beginning of period (in shares) at Jan. 31, 2022 131,156,986 131,157,000        
Beginning of period at Jan. 31, 2022 $ 211,870 $ 137 834,429 (187) (610,604) (11,905)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares)   123,000        
Exercise of stock options 302   302      
Vested restricted stock units converted to common shares (in shares)   1,165,000        
Vested restricted stock units converted to common shares 0 $ 1 (1)      
Issuance of common stock under employee stock purchase plan (in shares)   457,000        
Issuance of common stock under employee stock purchase plan 2,354 $ 1 2,353      
Stock-based compensation 18,201   18,201      
Repurchase of common stock (in shares)   (4,838,000)        
Repurchase of common stock (30,554)         (30,554)
Other comprehensive income (loss) (3,414)     (3,414)    
Net loss (25,839)       (25,839)  
End of period (in shares) at Apr. 30, 2022   128,064,000        
End of period at Apr. 30, 2022 $ 172,920 $ 139 855,284 (3,601) (636,443) (42,459)
beginning of period (in shares) at Jan. 31, 2022 131,156,986 131,157,000        
Beginning of period at Jan. 31, 2022 $ 211,870 $ 137 834,429 (187) (610,604) (11,905)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares) 197,241 197,000        
Exercise of stock options $ 493 $ 0 493      
Vested restricted stock units converted to common shares (in shares)   2,246,000        
Vested restricted stock units converted to common shares 0 $ 2 (2)      
Issuance of common stock under employee stock purchase plan (in shares)   457,000        
Issuance of common stock under employee stock purchase plan 2,354 $ 1 2,353      
Stock-based compensation 34,427   34,427      
Repurchase of common stock (in shares)   (10,224,000)        
Repurchase of common stock (58,947)         (58,947)
Other comprehensive income (loss) (5,421)     (5,421)    
Net loss $ (45,830)       (45,830)  
End of period (in shares) at Jul. 31, 2022 123,833,157 123,833,000        
End of period at Jul. 31, 2022 $ 138,946 $ 140 871,700 (5,608) (656,434) (70,852)
beginning of period (in shares) at Apr. 30, 2022   128,064,000        
Beginning of period at Apr. 30, 2022 172,920 $ 139 855,284 (3,601) (636,443) (42,459)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares)   74,000        
Exercise of stock options 191   191      
Vested restricted stock units converted to common shares (in shares)   1,081,000        
Vested restricted stock units converted to common shares 0 $ 1 (1)      
Stock-based compensation 16,226   16,226      
Repurchase of common stock (in shares)   (5,386,000)        
Repurchase of common stock (28,393)         (28,393)
Other comprehensive income (loss) (2,007)     (2,007)    
Net loss $ (19,991)       (19,991)  
End of period (in shares) at Jul. 31, 2022 123,833,157 123,833,000        
End of period at Jul. 31, 2022 $ 138,946 $ 140 $ 871,700 $ (5,608) $ (656,434) $ (70,852)