v3.21.1
Equity-based compensation (Tables)
12 Months Ended
Jan. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of weighted average assumptions
Year ended January 31,
20202019
Risk-free interest rate
2.18 %2.81 %
Expected dividends
nonenone
Expected term (in years)
6.256.25
Volatility
45.15 %40.00 %
Weighted average fair value of grants
$4.99 $3.47 
Schedule of stock option activity
Stock option activity for the years ended January 31, 2020 and January 31, 2021 is as follows:
Number of
options
Weighted-
average
exercise price
Weighted-
average
remaining
contractual life
(in years)
Aggregate Intrinsic
value
Outstanding—February 1, 20195,055,505 $2.45 
Granted during the year1,230,382 $8.78 
Exercised(691,371)$2.62 
Forfeited(78,064)$5.20 
Outstanding and expected to vest — January 31, 20205,516,452 $3.80 6.22$150,152 
Exercisable — January 31, 20203,824,259 $2.41 5.16$109,351 
Amount vested during year ended January 31, 2020978,170 $5.31 
Outstanding — January 31, 20205,516,452 $3.80 
Granted
— $— 
Exercised(2,216,368)$2.39 
Forfeited and expired(88,730)$7.45 
Outstanding and expected to vest — January 31, 2021
3,211,354 $4.67 5.99$194,676 
Exercisable — January 31, 2021
2,315,820 $3.62 5.30$142,824 
Amount vested during year ended January 31, 2021
709,435 $6.31 
Schedule of restricted stock unit activity
Restricted stock unit activity for the years ended January 31, 2020 and 2021 are as follows: 
  Restricted stock units
Outstanding, February 1, 201920,164 
Granted during year
1,493,678 
Vested(43,011)
Forfeited and expired(23,413)
Outstanding, February 1, 20201,447,418 
Granted during year
972,271 
Vested(242,049)
Forfeited and expired (124,602)
Outstanding, January 31, 2021
2,053,038 
Schedule of performance share assumptions
January 31,
 2021
Correlation coefficient0.4230 
Valuation date stock price$62.96 
Simulation term3.00 Years
Volatility43.71 %
Risk-free rate0.20 %
Dividend yield— %
Weighted average fair value of grants
$84.38