Financial Instruments - Summary of Currency Risk (Parenthetical) (Detail) - Between USD and INR [Member] - USD ($) $ in Thousands |
Mar. 31, 2025 |
Mar. 31, 2024 |
|---|---|---|
| Disclosure of nature and extent of risks arising from financial instruments [line items] | ||
| Net exposure to foreign currency risk | $ (196,864) | $ (215,449) |
| Cash and cash equivalents [Member] | ||
| Disclosure of nature and extent of risks arising from financial instruments [line items] | ||
| Net exposure to foreign currency risk | $ 76 | $ 5 |