XML 56 R45.htm IDEA: XBRL DOCUMENT v3.22.2.2
Equity - Changes in stockholders' equity (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 31, 2022
Apr. 30, 2022
Jul. 31, 2021
Apr. 30, 2021
Jul. 31, 2022
Jul. 31, 2021
Jan. 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
beginning of period (in shares)   131,156,986     131,156,986    
Beginning of period $ 172,920 $ 211,870 $ 221,175 $ 207,235 $ 211,870 $ 207,235 $ 207,235
Exercise of stock options (in shares)         197,241    
Exercise of stock options 191 302 2,274 12,111 $ 493   19,197
Vested restricted stock units converted to common shares 0 0 0 0 0   0
Issuance of restricted stock     0 0     0
Issuance of common stock under employee stock purchase plan   2,354   3,817 2,354   6,485
Stock-based compensation 16,226 18,201 20,730 15,288 34,427   74,821
Repurchase of common stock (28,393) (30,554)     (58,947)    
Other comprehensive income (loss) (2,007) (3,414) (8) 355 (5,421)   (2,609)
Net loss $ (19,991) (25,839) (27,592) (17,631) $ (45,830) (45,223) $ (93,259)
End of period (in shares) 123,833,157       123,833,157   131,156,986
End of period $ 138,946 $ 172,920 $ 216,579 $ 221,175 $ 138,946 $ 216,579 $ 211,870
Common Stock              
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
beginning of period (in shares) 128,064,000 131,157,000 126,215,000 123,989,000 131,157,000 123,989,000 123,989,000
Beginning of period $ 139 $ 137 $ 132 $ 130 $ 137 $ 130 $ 130
Exercise of stock options (in shares) 74,000 123,000 402,000 1,069,000 197,000   2,220,000
Exercise of stock options     $ 1 $ 1 $ 0   $ 2
Vested restricted stock units converted to common shares (in shares) 1,081,000 1,165,000 1,172,000 871,000 2,246,000   4,402,000
Vested restricted stock units converted to common shares $ 1 $ 1 $ 1 $ 1 $ 2   $ 4
Issuance of restricted stock (in shares)     11,000 4,000     15,000
Issuance of common stock under employee stock purchase plan (in shares)   457,000   282,000 457,000   531,000
Issuance of common stock under employee stock purchase plan   $ 1     $ 1   $ 1
Repurchase of common stock (in shares) (5,386,000) (4,838,000)     (10,224,000)    
End of period (in shares) 123,833,000 128,064,000 127,800,000 126,215,000 123,833,000 127,800,000 131,157,000
End of period $ 140 $ 139 $ 134 $ 132 $ 140 $ 134 $ 137
Additional Paid-in Capital              
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Beginning of period 855,284 834,429 765,147 733,933 834,429 733,933 733,933
Exercise of stock options 191 302 2,273 12,110 493   19,195
Vested restricted stock units converted to common shares (1) (1) (1) (1) (2)   (4)
Issuance of common stock under employee stock purchase plan   2,353   3,817 2,353   6,484
Stock-based compensation 16,226 18,201 20,730 15,288 34,427   74,821
End of period 871,700 855,284 788,149 765,147 871,700 788,149 834,429
Accumulated Other Comprehensive Income (Loss)              
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Beginning of period (3,601) (187) 2,777 2,422 (187) 2,422 2,422
Other comprehensive income (loss) (2,007) (3,414) (8) 355 (5,421)   (2,609)
End of period (5,608) (3,601) 2,769 2,777 (5,608) 2,769 (187)
Accumulated Deficit              
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Beginning of period (636,443) (610,604) (534,976) (517,345) (610,604) (517,345) (517,345)
Net loss (19,991) (25,839) (27,592) (17,631) (45,830)   (93,259)
End of period (656,434) (636,443) (562,568) (534,976) (656,434) (562,568) (610,604)
Treasury Stock, Common              
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Beginning of period (42,459) (11,905) (11,905) (11,905) (11,905) (11,905) (11,905)
Repurchase of common stock (28,393) (30,554)     (58,947)    
End of period $ (70,852) $ (42,459) $ (11,905) $ (11,905) $ (70,852) $ (11,905) $ (11,905)