XML 87 R63.htm IDEA: XBRL DOCUMENT v3.24.0.1
Commitments and provisions (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Less than 1 year    
Other Provisions, Contingent Liabilities and Contingent Assets [Abstract]    
Co-investment commitments $ 4.0 $ 5.7
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]    
Co-investment commitments 4.0 5.7
Later than one year    
Other Provisions, Contingent Liabilities and Contingent Assets [Abstract]    
Co-investment commitments 1.9 0.4
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]    
Co-investment commitments $ 1.9 $ 0.4