XML 614 R71.htm IDEA: XBRL DOCUMENT v3.25.1
Material accounting policies - Intangible assets (Details)
12 Months Ended
Dec. 31, 2024
Internally generated  
Disclosure of detailed information about intangible assets [line items]  
Estimated useful life 3 years
Software | Minimum  
Disclosure of detailed information about intangible assets [line items]  
Estimated useful life 3 years
Software | Maximum  
Disclosure of detailed information about intangible assets [line items]  
Estimated useful life 5 years
Customer contracts  
Disclosure of detailed information about intangible assets [line items]  
Estimated useful life 10 years