Stock-based compensation plan (Tables)

3 Months Ended

Jun. 30, 2023

Share-Based Payment Arrangement [Abstract]

Summary of Unvested SARs Activities

The following table summarizes the activities for the outstanding SARs:

	Number of SARs	Weighted- Average Exercise Price in U.S. Cents*	Weighted Average Contractual Remaining Term (years)	Aggregate Intrinsic Values (in thousands)*
Outstanding as of April 1, 2023	35,800,000	37
Granted	10,600,000	27
Exercised	—	—
Forfeited	(475,000)	34
Outstanding as of June 30, 2023	45,925,000	34	4.35
Vested and expected to vest as of June 30, 2023	43,628,750	34	4.35	$	—
Vested as of June 30, 2023	—	—	—	$	—