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Investment in Equity-Accounted Investees - Summary of Financial Information for Individually Immaterial Associates (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Disclosure Of Significant Investments In Associates [Abstract]      
Carrying amount of interests in associates $ 3,558 $ 5,262  
Share of profit (loss) of equity-accounted investees 34 (168) $ (65)
Company's share of other comprehensive income in associates 0 0 0
Company's share of total comprehensive income in associates $ 34 $ (168) $ (65)