Stock-based compensation plan (Tables)

12 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Summary of SARs

The following table summarizes the Company’s SARs for the year ended March 31, 2022:

	Number of SARs	Weighted- Average Exercise Price in U.S. Cents*	Weighted-Average Remaining Contractual Term (years)	Aggregate Intrinsic Value* (in thousands)
Outstanding as of April 1, 2021	40,567,917	38
Granted on December 9, 2021	11,625,000	51
Granted on March 24, 2022	500,000	50
Exercised	(9,692,917)	22
Forfeited	(2,028,125)	46
Outstanding as of March 31, 2022	40,971,875	45	3.73
Vested and expected to vest as of March 31, 2022	39,407,969	45	3.71	$	2,569
Vested as of March 31, 2022	9,693,750	35	1.70	$	1,583

* The exercise price is denominated in South African cents. U.S. currency amounts are based on a ZAR:USD exchange rate of 14.4916 as of March 31, 2022.

The following table summarizes the Company’s unvested SARs for the year ended March 31, 2022:

	Number of SARs	Weighted- Average Grant-Date Fair Value in U.S. Cents*
Unvested as of April 1, 2021	28,512,500	17
Granted on December 9, 2021	11,625,000	22
Granted on March 24, 2022	500,000	22
Vested	(7,331,250)	13
Forfeited	(2,028,125)	18
Unvested as of March 31, 2022	31,278,125	20

* The exercise price used to determine the grant date fair value is denominated in South African cents. U.S. currency amounts are based on a ZAR:USD exchange rate of 14.4916 as of March 31, 2022.