CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 3,993	$ 5,426
Preference shares, authorized (in shares)	100,000,000	100,000,000
Preference shares, issued (in shares)	0	0
Ordinary shares, issued (in shares)	605,900,000	605,200,000
Ordinary shares, outstanding (in shares)	605,900,000	605,200,000
Treasury stock (in shares)	53,800,000	53,800,000