v3.26.1
Financial Instruments - Disclosure of Reconciliation of Level 3 Fair Value (Detail) - Level 3 [Member] - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disclosure Of Financial Instruments [Line Items]    
Opening balances $ 16,786  
Total gains and losses recognized in:    
Closing balances 12,811 $ 16,786
Opening balances 591  
Closing balances 12,106 591
Other Liabilities Related to Business Combinations [Member]    
Disclosure Of Financial Instruments [Line Items]    
Opening balances 16,786 12,438
Acquired in business combinations (refer note 7 (b))   576
Total gains and losses recognized in:    
-foreign currency translation reserve (1,451) 9
-effect of movements in foreign exchange rates (19) (309)
-accumulated deficit (1,939) 4,072
Payment during the period (refer note 7 (c)) (566)  
Closing balances 12,811 16,786
Other Investments (Equity Securities FVOCI) [Member]    
Disclosure Of Financial Instruments [Line Items]    
Acquired in business combinations (refer note 7 (b)) 10,300  
Addition due to discontinuation of equity accounted associate (refer note 8) (1,531)  
Total gains and losses recognized in:    
-net change in fair value 275 (452)
Closing balances 12,106  
Opening balances 0 452
Closing balances   0
Other Investments Equity Securities FVTPL [Member]    
Disclosure Of Financial Instruments [Line Items]    
Transfer out of Level 3 to Level 1 (591)  
Total gains and losses recognized in:    
Opening balances $ 591 591
Closing balances   $ 591