Share-Based Compensation (Tables)

6 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Summary of Stock Option Activity

Activity for stock options for the six months ended September 30, 2021 is as follows:

	Number of Options
Options outstanding at March 31, 2021	8,293,331
Granted	1,057,349
Exercised	(1,255,578)
Forfeited	(347,506)
Options outstanding at September 30, 2021	7,747,596
Options vested and expected to vest at September 30, 2021	7,747,596
Options exercisable at September 30, 2021	4,942,410

Summary of Restricted Share Awards and Restricted Stock Units Activity

Activity for restricted stock units and performance stock units for the six months ended September 30, 2021 is as follows:

	Number of Shares
Unvested balance at March 31, 2021	3,571,235
Granted	2,691,005
Vested	(821,342)
Forfeited	(706,453)
Unvested balance at September 30, 2021	4,734,445

Schedule of Share-based Compensation

Share-based compensation during the three and six months ended September 30, 2021 and 2020 was as follows (in thousands):

	Three Months Ended September 30,				Six Months Ended September 30,
	2021		2020		2021		2020
Share-based compensation recognized as:
R&D expense	$	5,060	$	3,725	$	9,167	$	7,749
SG&A expense	6,803		3,199		13,958		6,987
Total	$	11,863	$	6,924	$	23,125	$	14,736