v3.25.2
Financial Instruments - Disclosure of Reconciliation of Level 3 Fair Value (Detail) - Level 3 [Member] - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Disclosure Of Financial Instruments [Line Items]    
Opening balances $ 12,438  
Total gains and losses recognized in:    
Closing balances 16,786 $ 12,438
Opening balances 1,043  
Closing balances 591 1,043
Derivative [Member]    
Disclosure Of Financial Instruments [Line Items]    
Acquired (refer note 7 (d) and 7 (e))   5,084
Total gains and losses recognized in:    
—profit or loss   115
Derecognition on discontinuation of equity accounted investment (refer note 7 (d))   (5,199)
Other Liabilities Related to Business Combinations [Member]    
Disclosure Of Financial Instruments [Line Items]    
Opening balances 12,438 9,368
Acquired (refer note 7 (d) and 7 (e)) 576 7,311
Total gains and losses recognized in:    
—profit or loss   215
-effect of movements in foreign exchange rates (300) (207)
-equity 4,072 3,178
Payment during the year (refer note 7 (a))   (7,427)
Closing balances 16,786 12,438
Other Investments (Equity Securities FVOCI) [Member]    
Total gains and losses recognized in:    
Opening balances 452 452
Equity instruments at fair value through other comprehensive income (FVOCI) - change in fair value (452)  
Closing balances   452
Other Investments Equity Securities FVTPL [Member]    
Total gains and losses recognized in:    
Opening balances 591 591
Closing balances $ 591 $ 591