Annual report pursuant to Section 13 and 15(d)

Description of Stock Plans - Exercise Price for Options Outstanding and Options Exercisable (Detail)

v3.21.1
Description of Stock Plans - Exercise Price for Options Outstanding and Options Exercisable (Detail)
 12 Months Ended
Mar. 31, 2021
$ / shares
shares
Employee Stock Ownership Plan E S O P Disclosures [Line Items]  
Options Outstanding (in shares) | shares 8,146,445
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 4.01
Weighted-Average Remaining Life (Years) 6 years 10 months 9 days
Options Exercisable (in shares) | shares 5,469,049
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 2.39
$0.01 - 5.00  
Employee Stock Ownership Plan E S O P Disclosures [Line Items]  
Range of Exercise Price, lower limit (in dollars per share) 0.01
Range of Exercise Price, upper limit (in dollars per share) $ 5.00
Options Outstanding (in shares) | shares 5,578,097
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 2.13
Weighted-Average Remaining Life (Years) 5 years 10 months 28 days
Options Exercisable (in shares) | shares 4,908,281
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 1.96
$5.01 - 10.00  
Employee Stock Ownership Plan E S O P Disclosures [Line Items]  
Range of Exercise Price, lower limit (in dollars per share) 5.01
Range of Exercise Price, upper limit (in dollars per share) $ 10.00
Options Outstanding (in shares) | shares 2,314,183
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 5.66
Weighted-Average Remaining Life (Years) 8 years 10 months 6 days
Options Exercisable (in shares) | shares 547,958
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 5.61
$10.01 - 15.00  
Employee Stock Ownership Plan E S O P Disclosures [Line Items]  
Range of Exercise Price, lower limit (in dollars per share) 10.01
Range of Exercise Price, upper limit (in dollars per share) $ 15.00
Options Outstanding (in shares) | shares 126,272
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 13.43
Weighted-Average Remaining Life (Years) 9 years 3 months 7 days
Options Exercisable (in shares) | shares 0
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 0
$15.01 - 20.00  
Employee Stock Ownership Plan E S O P Disclosures [Line Items]  
Range of Exercise Price, lower limit (in dollars per share) 15.01
Range of Exercise Price, upper limit (in dollars per share) $ 20.00
Options Outstanding (in shares) | shares 31,288
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 15.54
Weighted-Average Remaining Life (Years) 9 years 4 months 6 days
Options Exercisable (in shares) | shares 5,959
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 15.54
$20.01 - and over  
Employee Stock Ownership Plan E S O P Disclosures [Line Items]  
Range of Exercise Price, lower limit (in dollars per share) $ 20.01
Options Outstanding (in shares) | shares 96,605
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 56.69
Weighted-Average Remaining Life (Years) 9 years 9 months 18 days
Options Exercisable (in shares) | shares 6,851
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 41.25