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v3.21.2

Tax Assets and Liabilities - Additional Information (Detail) $ in Thousands | 12 Months Ended
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Mar. 31, 2021 USD ($)
Bottom of Range [Member] |
Disclosure Of Components Of Deferred Tax Assets And Liabilities [Line Items] |
Tax loss expiration period | 2022
Top of Range [Member] |
Disclosure Of Components Of Deferred Tax Assets And Liabilities [Line Items] |
Tax loss expiration period | 2035
Singapore and Indonesia Entity [Member] |
Disclosure Of Components Of Deferred Tax Assets And Liabilities [Line Items] |
Tax losses carried forward for an indefinite period | $ 3,027
Indian Subsidiaries [Member] |
Disclosure Of Components Of Deferred Tax Assets And Liabilities [Line Items] |
Unabsorbed depreciation carried forward for an indefinite period | $ 30,609

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