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Intangible assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period $ 234,493  
Amortization of intangible assets 91,812 $ 30,128
Intangible assets other than goodwill at end of period 409,568 234,493
Acquired software technologies    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 42,244  
Intangible assets other than goodwill at end of period 146,306 42,244
Customer relationships    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 192,249  
Intangible assets other than goodwill at end of period 263,262 192,249
Gross carrying amount    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 292,974 90,061
Acquired through business combinations 268,800 197,199
Exchange differences (2,237) 5,714
Intangible assets other than goodwill at end of period 559,537 292,974
Gross carrying amount | Acquired software technologies    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 72,884 39,591
Acquired through business combinations 141,200 31,700
Exchange differences (503) 1,593
Intangible assets other than goodwill at end of period 213,581 72,884
Gross carrying amount | Customer relationships    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period 220,090 50,470
Acquired through business combinations 127,600 165,499
Exchange differences (1,734) 4,121
Intangible assets other than goodwill at end of period 345,956 220,090
Accumulated depreciation, amortisation and impairment    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period (58,481) (27,242)
Exchange differences (324) 1,111
Amortization of intangible assets 91,812 30,128
Intangible assets other than goodwill at end of period (149,969) (58,481)
Accumulated depreciation, amortisation and impairment | Acquired software technologies    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period (30,640) (19,974)
Exchange differences (65) 424
Amortization of intangible assets 36,700 10,242
Intangible assets other than goodwill at end of period (67,275) (30,640)
Accumulated depreciation, amortisation and impairment | Customer relationships    
Disclosure of detailed information about intangible assets [line items]    
Intangible assets other than goodwill at beginning of period (27,841) (7,268)
Exchange differences (259) 687
Amortization of intangible assets 55,112 19,886
Intangible assets other than goodwill at end of period $ (82,694) $ (27,841)