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Intangible assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period $ 409,568  
Amortization of intangible assets (101,546) $ (91,812)
Intangible assets other than goodwill at end of period 311,450 409,568
Acquired software technologies    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 146,306  
Intangible assets other than goodwill at end of period 103,425 146,306
Customer relationships    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 263,262  
Intangible assets other than goodwill at end of period 203,756 263,262
Internally generated intangibles    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 0  
Intangible assets other than goodwill at end of period 4,269 0
Gross carrying amount    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 559,537 292,974
Additions 4,269  
Acquired through business combinations   268,800
Exchange differences (2,508) (2,237)
Intangible assets other than goodwill at end of period 561,298 559,537
Gross carrying amount | Acquired software technologies    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 213,581 72,884
Additions 0  
Acquired through business combinations   141,200
Exchange differences (739) (503)
Intangible assets other than goodwill at end of period 212,842 213,581
Gross carrying amount | Customer relationships    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 345,956 220,090
Additions 0  
Acquired through business combinations   127,600
Exchange differences (1,769) (1,734)
Intangible assets other than goodwill at end of period 344,187 345,956
Gross carrying amount | Internally generated intangibles    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 0 0
Additions 4,269  
Acquired through business combinations   0
Exchange differences 0 0
Intangible assets other than goodwill at end of period 4,269 0
Accumulated depreciation    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period (149,969) (58,481)
Exchange differences (1,667) (324)
Amortization of intangible assets 101,546 91,812
Intangible assets other than goodwill at end of period (249,848) (149,969)
Accumulated depreciation | Acquired software technologies    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period (67,275) (30,640)
Exchange differences (653) (65)
Amortization of intangible assets 42,795 36,700
Intangible assets other than goodwill at end of period (109,417) (67,275)
Accumulated depreciation | Customer relationships    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period (82,694) (27,841)
Exchange differences (1,014) (259)
Amortization of intangible assets 58,751 55,112
Intangible assets other than goodwill at end of period (140,431) (82,694)
Accumulated depreciation | Internally generated intangibles    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 0 0
Exchange differences 0 0
Amortization of intangible assets 0 0
Intangible assets other than goodwill at end of period $ 0 $ 0