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Provisions - Summary of Movement of Provisions (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Movement of provision    
Opening Balance $ 30,800 $ 30,800
Provided during the year 8,404
Reversed during the year (3,704)  
Utilized during the year $ (35,500)  
Closing Balance   $ 30,800