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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) $ in Thousands | Total | Class A Common Stock | Class A and Class B Common Stock | Additional Paid-in Capital | Treasury Stock | Accumulated Other Comprehensive Income (Loss) | Accumulated Deficit
--- | --- | --- | --- | --- | --- | --- | ---
Balance, Beginning at Jan. 31, 2018 |  | $ 14,968 |  |  | $ 13 | [1] | $ 1,054,932 | $ (1,177) | $ 288 | $ (1,039,088)
Balance, Beginning, Shares at Jan. 31, 2018 | [1] |  |  |  | 137,317,000 |  |  |  |  |
Issuance of common stock upon stock option exercises |  | 4,369 |  |  |  |  | 4,369 |  |  |
Issuance of common stock upon stock option exercises (in shares) | [1] |  |  |  | 631,000 |  |  |  |  |
Issuance of common stock in connection with charitable donations |  | 243 |  |  |  |  | 243 |  |  |
Issuance of common stock in connection with charitable donations (in shares) | [1] |  |  |  | 12,000 |  |  |  |  |
Stock-based compensation related to stock awards |  | 25,443 |  |  |  |  | 25,443 |  |  |
Vesting of restricted stock units, net of shares withheld for employee payroll taxes (in shares) | [1] |  |  |  | 1,011,000 |  |  |  |  |
Employee payroll taxes withheld related to vesting of restricted stock units |  | (13,295) |  |  |  |  | (13,295) |  |  |
Common stock issued under employee stock purchase plan |  | 11,846 |  |  |  |  | 11,846 |  |  |
Common stock issued under employee stock purchase plan (in shares) | [1] |  |  |  | 1,004,000 |  |  |  |  |
Other comprehensive income (loss) |  | (124) |  |  |  |  |  |  | (124) |
Net loss |  | (36,637) |  |  |  |  |  |  |  | (36,637)
Balance, Ending at Apr. 30, 2018 |  | 46,615 |  |  | $ 13 | [1] | 1,083,538 | (1,177) | 164 | (1,035,923)
Balance, Ending, Shares at Apr. 30, 2018 | [1] |  |  |  | 139,975,000 |  |  |  |  |
Balance, Beginning at Jan. 31, 2018 |  | 14,968 |  |  | $ 13 | [1] | 1,054,932 | (1,177) | 288 | (1,039,088)
Balance, Beginning, Shares at Jan. 31, 2018 | [1] |  |  |  | 137,317,000 |  |  |  |  |
Other comprehensive income (loss) | [2],[3] | (375) |  |  |  |  |  |  |  |
Net loss |  | (114,918) | [2] | $ (110,868) |  |  |  |  |  |
Balance, Ending at Oct. 31, 2018 |  | 25,646 |  |  | $ 14 | [1] | 1,141,100 | (1,177) | (87) | (1,114,204)
Balance, Ending, Shares at Oct. 31, 2018 | [1] |  |  |  | 143,388,000 |  |  |  |  |
Cumulative effect of ASC adoption | Topic 606 |  | 39,802 |  |  |  |  |  |  |  | 39,802
Balance, Beginning at Apr. 30, 2018 |  | 46,615 |  |  | $ 13 | [1] | 1,083,538 | (1,177) | 164 | (1,035,923)
Balance, Beginning, Shares at Apr. 30, 2018 | [1] |  |  |  | 139,975,000 |  |  |  |  |
Issuance of common stock upon stock option exercises |  | 8,462 |  |  |  |  | 8,462 |  |  |
Issuance of common stock upon stock option exercises (in shares) | [1] |  |  |  | 815,000 |  |  |  |  |
Issuance of common stock in connection with acquisitions |  | 1,053 |  |  |  |  | 1,053 |  |  |
Issuance of common stock in connection with acquisitions (in shares) | [1] |  |  |  | 40,000 |  |  |  |  |
Stock-based compensation related to stock awards |  | 29,252 |  |  |  |  | 29,252 |  |  |
Vesting of restricted stock units, net of shares withheld for employee payroll taxes |  | 1 |  |  | $ 1 | [1] |  |  |  |
Vesting of restricted stock units, net of shares withheld for employee payroll taxes (in shares) | [1] |  |  |  | 776,000 |  |  |  |  |
Employee payroll taxes withheld related to vesting of restricted stock units |  | (12,009) |  |  |  |  | (12,009) |  |  |
Other comprehensive income (loss) |  | (162) |  |  |  |  |  |  | (162) |
Net loss |  | (38,085) |  |  |  |  |  |  |  | (38,085)
Balance, Ending at Jul. 31, 2018 |  | 35,127 |  |  | $ 14 | [1] | 1,110,296 | (1,177) | 2 | (1,074,008)
Balance, Ending, Shares at Jul. 31, 2018 | [1] |  |  |  | 141,606,000 |  |  |  |  |
Issuance of common stock upon stock option exercises |  | 2,145 |  |  |  |  | 2,145 |  |  |
Issuance of common stock upon stock option exercises (in shares) | [1] |  |  |  | 299,000 |  |  |  |  |
Stock-based compensation related to stock awards |  | 30,241 |  |  |  |  | 30,241 |  |  |
Vesting of restricted stock units, net of shares withheld for employee payroll taxes (in shares) | [1] |  |  |  | 869,000 |  |  |  |  |
Employee payroll taxes withheld related to vesting of restricted stock units |  | (11,597) |  |  |  |  | (11,597) |  |  |
Common stock issued under employee stock purchase plan |  | 10,015 |  |  |  |  | 10,015 |  |  |
Common stock issued under employee stock purchase plan (in shares) | [1] |  |  |  | 614,000 |  |  |  |  |
Other comprehensive income (loss) |  | (89) | [2],[3] |  |  |  |  |  | (89) |
Net loss |  | (40,196) | [2] | (40,196) |  |  |  |  |  | (40,196)
Balance, Ending at Oct. 31, 2018 |  | 25,646 |  |  | $ 14 | [1] | 1,141,100 | (1,177) | (87) | (1,114,204)
Balance, Ending, Shares at Oct. 31, 2018 | [1] |  |  |  | 143,388,000 |  |  |  |  |
Balance, Beginning at Jan. 31, 2019 |  | 31,405 | [2] | $ 14 |  |  | 1,166,443 | (1,177) | 23 | (1,133,898)
Balance, Beginning, Shares at Jan. 31, 2019 |  |  |  | 144,311,000 |  |  |  |  |  |
Issuance of common stock upon stock option exercises |  | 1,213 |  |  |  |  | 1,213 |  |  |
Issuance of common stock upon stock option exercises (in shares) |  |  |  | 152,000 |  |  |  |  |  |
Stock-based compensation related to stock awards |  | 35,678 |  |  |  |  | 35,678 |  |  |
Vesting of restricted stock units, net of shares withheld for employee payroll taxes |  | 1 |  | $ 1 |  |  |  |  |  |
Vesting of restricted stock units, net of shares withheld for employee payroll taxes (in shares) |  |  |  | 1,205,000 |  |  |  |  |  |
Employee payroll taxes withheld related to vesting of restricted stock units |  | (14,624) |  |  |  |  | (14,624) |  |  |
Common stock issued under employee stock purchase plan |  | 13,605 |  |  |  |  | 13,605 |  |  |
Common stock issued under employee stock purchase plan (in shares) |  |  |  | 829,000 |  |  |  |  |  |
Other comprehensive income (loss) |  | 88 |  |  |  |  |  |  | 88 |
Net loss |  | (36,828) |  |  |  |  |  |  |  | (36,828)
Balance, Ending at Apr. 30, 2019 |  | 30,538 |  | $ 15 |  |  | 1,202,315 | (1,177) | 111 | (1,170,726)
Balance, Ending, Shares at Apr. 30, 2019 |  |  |  | 146,497,000 |  |  |  |  |  |
Balance, Beginning at Jan. 31, 2019 |  | $ 31,405 | [2] | $ 14 |  |  | 1,166,443 | (1,177) | 23 | (1,133,898)
Balance, Beginning, Shares at Jan. 31, 2019 |  |  |  | 144,311,000 |  |  |  |  |  |
Issuance of common stock upon stock option exercises (in shares) |  | 417,245 |  |  |  |  |  |  |  |
Other comprehensive income (loss) | [3],[4] | $ (134) |  |  |  |  |  |  |  |
Net loss |  | (113,958) | [4] | $ (113,958) |  |  |  |  |  |
Balance, Ending at Oct. 31, 2019 |  | 20,775 | [4] | $ 15 |  |  | 1,269,904 | (1,177) | (111) | (1,247,856)
Balance, Ending, Shares at Oct. 31, 2019 |  |  |  | 149,478,000 |  |  |  |  |  |
Balance, Beginning at Apr. 30, 2019 |  | 30,538 |  | $ 15 |  |  | 1,202,315 | (1,177) | 111 | (1,170,726)
Balance, Beginning, Shares at Apr. 30, 2019 |  |  |  | 146,497,000 |  |  |  |  |  |
Issuance of common stock upon stock option exercises |  | 1,031 |  |  |  |  | 1,031 |  |  |
Issuance of common stock upon stock option exercises (in shares) |  |  |  | 143,000 |  |  |  |  |  |
Stock-based compensation related to stock awards |  | 38,035 |  |  |  |  | 38,035 |  |  |
Vesting of restricted stock units, net of shares withheld for employee payroll taxes (in shares) |  |  |  | 1,082,000 |  |  |  |  |  |
Employee payroll taxes withheld related to vesting of restricted stock units |  | (10,940) |  |  |  |  | (10,940) |  |  |
Other comprehensive income (loss) |  | (164) |  |  |  |  |  |  | (164) |
Net loss |  | (36,234) |  |  |  |  |  |  |  | (36,234)
Balance, Ending at Jul. 31, 2019 |  | 22,266 |  | $ 15 |  |  | 1,230,441 | (1,177) | (53) | (1,206,960)
Balance, Ending, Shares at Jul. 31, 2019 |  |  |  | 147,722,000 |  |  |  |  |  |
Issuance of common stock upon stock option exercises |  | 764 |  |  |  |  | 764 |  |  |
Issuance of common stock upon stock option exercises (in shares) |  |  |  | 122,000 |  |  |  |  |  |
Stock-based compensation related to stock awards |  | 38,373 |  |  |  |  | 38,373 |  |  |
Vesting of restricted stock units, net of shares withheld for employee payroll taxes (in shares) |  |  |  | 989,000 |  |  |  |  |  |
Employee payroll taxes withheld related to vesting of restricted stock units |  | (9,494) |  |  |  |  | (9,494) |  |  |
Common stock issued under employee stock purchase plan |  | 9,820 |  |  |  |  | 9,820 |  |  |
Common stock issued under employee stock purchase plan (in shares) |  |  |  | 645,000 |  |  |  |  |  |
Other comprehensive income (loss) |  | (58) | [3],[4] |  |  |  |  |  | (58) |
Net loss |  | (40,896) | [4] | $ (40,896) |  |  |  |  |  | (40,896)
Balance, Ending at Oct. 31, 2019 |  | $ 20,775 | [4] | $ 15 |  |  | $ 1,269,904 | $ (1,177) | $ (111) | $ (1,247,856)
Balance, Ending, Shares at Oct. 31, 2019 |  |  |  | 149,478,000 |  |  |  |  |  |
[1] | On June 14, 2018, all outstanding shares of our Class B common stock automatically converted into the same number of shares of Class A common stock pursuant to the terms of our Amended and Restated Certificate of Incorporation. We do not intend to issue any additional shares of Class B common stock.
[2] | As reported and disclosed under ASC Topic 840
[3] | Tax effect was not material
[4] | As reported and disclosed under ASC Topic 842

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