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Financial Instruments - Summary of Currency Risk (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Net exposure to foreign currency risk	$ (276,289)	$ (209,792)
Trades and other receivables [Member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Net exposure to foreign currency risk	1,288	956
Trades and other payables [Member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Net exposure to foreign currency risk	$ (277,577)	(210,884)
Cash and cash equivalents [Member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Net exposure to foreign currency risk		$ 136