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Stock-Based Compensation (Tables)
 6 Months Ended
Jul. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of Stock Options Activity The following table summarizes the activity related to the Company's stock options:
Outstanding Stock OptionsWeighted-Average Exercise PriceWeighted-Average Remaining Contractual Life (in years)Aggregate Intrinsic Value
(in thousands)
Balance, January 31, 2021
8,871,890 $7.64 4.94$81,906 
Granted— $— 
Exercised(1,471,011)$9.78 
Forfeited or canceled(7,813)$6.80 
Balance, July 31, 2021
7,393,066 $7.21 4.81$43,098 
Vested and expected to vest7,322,361 $7.17 4.80$43,003 
Exercisable at July 31, 2021
7,035,440 $6.99 4.74$42,593 
Schedule of Nonvested RSU Activity The following table summarizes the activity related to the Company's restricted stock and restricted stock units:
OutstandingWeighted-Average Grant Date Fair Value
Balance as of January 31, 2021
9,545,352 $16.71 
Granted 5,443,718 $13.51 
Vested and converted to shares(2,067,646)$16.06 
Forfeited or canceled(1,679,439)$16.75 
Balance as of July 31, 2021
11,241,985 $15.27 
Schedule of Share-Based Compensation Expense The Company's stock-based compensation expense for the periods presented was as follows:
Three months ended July 31,Six months ended July 31,
(in thousands)2021202020212020
Cost of revenue$2,312 $1,307 $3,757 $2,540 
Sales and marketing7,377 7,960 12,878 15,741 
Research and development5,828 3,933 9,816 7,876 
General and administrative4,885 4,030 8,549 8,445 
Total stock-based compensation expense$20,402 $17,230 $35,000 $34,602