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Loans and borrowings - Summary of Senior Secured Net Leverage Ratio on Multicurrency Revolving Credit Facility (Details) - Senior Facilities Agreement - Multicurrency Revolving Credit Facility
Dec. 31, 2023
Greater than 4.50:1.00  
Disclosure In Tabular Form Of Variable Interest Rate Spread Based On Leverage Ratio  
Borrowings, adjustment to interest rate basis 3.75%
Greater than 4.00:1.00 but equal to or less than 4.50:1.00  
Disclosure In Tabular Form Of Variable Interest Rate Spread Based On Leverage Ratio  
Borrowings, adjustment to interest rate basis 3.50%
Greater than 3.50:1.00 but equal to or less than 4.00:1.00  
Disclosure In Tabular Form Of Variable Interest Rate Spread Based On Leverage Ratio  
Borrowings, adjustment to interest rate basis 3.25%
Greater than 3.00:1.00 but equal to or less than 3.50:1.00  
Disclosure In Tabular Form Of Variable Interest Rate Spread Based On Leverage Ratio  
Borrowings, adjustment to interest rate basis 3.00%
Equal to or less than 3.00:1.00  
Disclosure In Tabular Form Of Variable Interest Rate Spread Based On Leverage Ratio  
Borrowings, adjustment to interest rate basis 2.75%