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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Treasury Stock
Accumulated Other Comprehensive Loss
Accumulated Deficit
Beginning balance (in shares) at Jan. 31, 2022   67,444,360        
Beginning balance at Jan. 31, 2022 $ 666,700 $ 67 $ 1,860,514 $ (1,319) $ (2,928) $ (1,189,634)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises (in shares)   235,517        
Stock option exercises 1,656   1,656      
Vesting of restricted stock units (in shares)   381,178        
Vesting of restricted stock units 1 $ 1        
Stock-based compensation 83,566   83,566      
Conversion of 2024 convertible senior notes (in shares)   8        
Conversion of convertible senior notes 1   1      
Unrealized (loss) gain on available-for-sale securities (2,364)       (2,364)  
Foreign currency translation adjustment 613       613  
Net loss (77,294)         (77,294)
Ending balance (in shares) at Apr. 30, 2022   68,061,063        
Ending balance at Apr. 30, 2022 672,879 $ 68 1,945,737 (1,319) (4,679) (1,266,928)
Beginning balance (in shares) at Jan. 31, 2022   67,444,360        
Beginning balance at Jan. 31, 2022 666,700 $ 67 1,860,514 (1,319) (2,928) (1,189,634)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Unrealized (loss) gain on available-for-sale securities (62)          
Foreign currency translation adjustment (801)          
Net loss (281,000)          
Ending balance (in shares) at Oct. 31, 2022   69,255,675        
Ending balance at Oct. 31, 2022 684,282 $ 69 2,159,957 (1,319) (3,791) (1,470,634)
Beginning balance (in shares) at Apr. 30, 2022   68,061,063        
Beginning balance at Apr. 30, 2022 672,879 $ 68 1,945,737 (1,319) (4,679) (1,266,928)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises (in shares)   163,986        
Stock option exercises 1,332   1,332      
Vesting of restricted stock units (in shares)   388,483        
Vesting of restricted stock units 1 $ 1        
Stock-based compensation 96,554   96,554      
Conversion of 2024 convertible senior notes (in shares)   18        
Conversion of convertible senior notes 5   5      
Issuance of common stock under the Employee Stock Purchase Plan (in shares)   72,966        
Issuance of common stock under the Employee Stock Purchase Plan 15,777   15,777      
Unrealized (loss) gain on available-for-sale securities 1,163       1,163  
Foreign currency translation adjustment (678)       (678)  
Net loss (118,865)         (118,865)
Ending balance (in shares) at Jul. 31, 2022   68,686,516        
Ending balance at Jul. 31, 2022 668,168 $ 69 2,059,405 (1,319) (4,194) (1,385,793)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises (in shares)   199,043        
Stock option exercises 1,351   1,351      
Vesting of restricted stock units (in shares)   370,102        
Stock-based compensation 99,198   99,198      
Conversion of 2024 convertible senior notes (in shares)   14        
Conversion of convertible senior notes 3   3      
Unrealized (loss) gain on available-for-sale securities 1,139       1,139  
Foreign currency translation adjustment (736)       (736)  
Net loss (84,841)         (84,841)
Ending balance (in shares) at Oct. 31, 2022   69,255,675        
Ending balance at Oct. 31, 2022 $ 684,282 $ 69 2,159,957 (1,319) (3,791) (1,470,634)
Beginning balance (in shares) at Jan. 31, 2023 69,906,586 69,906,586        
Beginning balance at Jan. 31, 2023 $ 739,508 $ 70 2,276,694 (1,319) (905) (1,535,032)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises (in shares)   213,713        
Stock option exercises 1,472   1,472      
Vesting of restricted stock units (in shares)   388,017        
Vesting of restricted stock units 1 $ 1        
Vesting of performance stock units (in shares)   22,991        
Stock-based compensation 103,955   103,955      
Unrealized (loss) gain on available-for-sale securities 818       818  
Foreign currency translation adjustment 921       921  
Net loss (54,246)         (54,246)
Ending balance (in shares) at Apr. 30, 2023   70,531,307        
Ending balance at Apr. 30, 2023 $ 792,429 $ 71 2,382,121 (1,319) 834 (1,589,278)
Beginning balance (in shares) at Jan. 31, 2023 69,906,586 69,906,586        
Beginning balance at Jan. 31, 2023 $ 739,508 $ 70 2,276,694 (1,319) (905) (1,535,032)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises (in shares) 659,091          
Unrealized (loss) gain on available-for-sale securities $ (7,610)          
Foreign currency translation adjustment (907)          
Net loss $ (121,140)          
Ending balance (in shares) at Oct. 31, 2023 71,959,476 71,959,476        
Ending balance at Oct. 31, 2023 $ 967,540 $ 72 2,634,381 (1,319) (9,422) (1,656,172)
Beginning balance (in shares) at Apr. 30, 2023   70,531,307        
Beginning balance at Apr. 30, 2023 792,429 $ 71 2,382,121 (1,319) 834 (1,589,278)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises (in shares)   265,477        
Stock option exercises 2,036 $ 1 2,035      
Vesting of restricted stock units (in shares)   432,093        
Stock-based compensation 113,312   113,312      
Issuance of common stock under the Employee Stock Purchase Plan (in shares)   114,508        
Issuance of common stock under the Employee Stock Purchase Plan 19,781   19,781      
Unrealized (loss) gain on available-for-sale securities (5,981)       (5,981)  
Foreign currency translation adjustment 1,105       1,105  
Net loss (37,597)         (37,597)
Ending balance (in shares) at Jul. 31, 2023   71,343,385        
Ending balance at Jul. 31, 2023 885,085 $ 72 2,517,249 (1,319) (4,042) (1,626,875)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option exercises (in shares)   179,901        
Stock option exercises 1,303   1,303      
Vesting of restricted stock units (in shares)   436,190        
Vesting of restricted stock units 0          
Stock-based compensation 115,829   115,829      
Unrealized (loss) gain on available-for-sale securities (2,447)       (2,447)  
Foreign currency translation adjustment (2,933)       (2,933)  
Net loss $ (29,297)         (29,297)
Ending balance (in shares) at Oct. 31, 2023 71,959,476 71,959,476        
Ending balance at Oct. 31, 2023 $ 967,540 $ 72 $ 2,634,381 $ (1,319) $ (9,422) $ (1,656,172)