Summary of significant accounting policies - Schedule of Estimated Useful Lives of Property, Plant and Equipment (Details)	Mar. 31, 2026
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	40 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	4 years
Computer equipment and servers
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	4 years
Plant, machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	4 years
Computer software \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	4 years
Computer software \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	7 years
Leasehold improvements \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	10 years
Vehicles \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	3 years
Vehicles \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	4 years