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Income Tax Benefit (Expense) - Schedule of Income Tax Recognized in Profit or Loss (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Current tax expense      
Current period $ (134) $ (24) $ (349)
Adjustment for prior period   (56)  
Current tax expense (134) (80) (349)
Deferred tax benefit (expense)      
Origination and reversal of temporary differences 3,484 4,203 14,844
Change in unrecognised temporary differences (8,219) (3,335) (14,700)
Utilization of previously unrecognised tax losses 6,934 37 159
Recognition of previously unrecognized tax losses   3,509  
Utilization/(reversal) of previously recognized tax losses (958) 173 75
Deferred tax benefit (expense) 1,241 4,587 378
Total $ 1,107 $ 4,507 $ 29