v3.26.1
BALANCE SHEET VALUES OF FINANCIAL ASSETS AND LIABILITIES BY MEASUREMENT CATEGORIES - Schedule of financial assets and liabilities by measurement categories (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ 145.3 $ 134.3
Financial liabilities 700.4 841.0
Contingent consideration related to acquisitions    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 10.0 20.0
Amortized cost | Non-current borrowings    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 0.0 792.3
Amortized cost | Non-current lease liabilities    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 775.1 660.9
Amortized cost | Other non-current liabilities    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 4.9 4.0
Amortized cost | Current other borrowings    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 147.4 142.8
Amortized cost | Current lease liabilities    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 179.1 157.1
Amortized cost | Accounts payable    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 750.7 769.8
Amortized cost | Other current liabilities    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 700.4 841.0
Fair value through OCI | Foreign exchange derivatives - used in hedge accounting    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 3.5 3.2
Fair value through OCI | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 30.7 62.2
Fair value through profit or loss | Contingent consideration related to acquisitions    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 10.0 20.0
Fair value through profit or loss | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 13.0 6.0
Fair value | Amortized cost | Non-current borrowings    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 0.0 835.8
Fair value | Fair value through OCI | Foreign exchange derivatives - used in hedge accounting    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 3.5 3.2
Fair value | Fair value through OCI | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 30.7 62.2
Fair value | Fair value through profit or loss | Contingent consideration related to acquisitions    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 10.0 20.0
Fair value | Fair value through profit or loss | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 13.0 6.0
Fair value | Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0.0 0.0
Financial liabilities 0.0 0.0
Fair value | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 63.5 24.3
Financial liabilities 47.2 907.2
Fair value | Level 2 | Amortized cost | Non-current borrowings    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 0.0 835.8
Fair value | Level 2 | Fair value through OCI | Foreign exchange derivatives - used in hedge accounting    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 3.5 3.2
Fair value | Level 2 | Fair value through OCI | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 30.7 62.2
Fair value | Level 2 | Fair value through profit or loss | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 13.0 6.0
Fair value | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 117.7 77.2
Financial liabilities 10.0 20.0
Fair value | Level 3 | Fair value through profit or loss | Contingent consideration related to acquisitions    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 10.0 20.0
Amortized cost | Other non-current financial assets    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 61.2 54.4
Amortized cost | Hold-to-collect accounts receivable    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 471.7 750.8
Amortized cost | Other non-interest yielding receivables    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 145.3 134.3
Amortized cost | Promissory notes    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0.0 4.4
Amortized cost | Promissory notes | Fair value    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0.0 4.4
Amortized cost | Promissory notes | Fair value | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0.0 4.4
Amortized cost | Cash and cash equivalents    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 720.4 652.3
Fair value through OCI | Other non-current financial assets    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 14.2 14.3
Fair value through OCI | Other non-current financial assets | Fair value    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 14.2 14.3
Fair value through OCI | Other non-current financial assets | Fair value | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 14.2 14.3
Fair value through OCI | Foreign exchange derivatives - used in hedge accounting    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 6.3 0.5
Fair value through OCI | Foreign exchange derivatives - used in hedge accounting | Fair value    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 6.3 0.5
Fair value through OCI | Foreign exchange derivatives - used in hedge accounting | Fair value | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 6.3 0.5
Fair value through OCI | Available for sale receivables    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 103.5 58.5
Fair value through OCI | Available for sale receivables | Fair value    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 103.5 58.5
Fair value through OCI | Available for sale receivables | Fair value | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 103.5 58.5
Fair value through OCI | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 30.7 11.5
Fair value through OCI | Derivative financial instruments | Fair value    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 30.7 11.5
Fair value through OCI | Derivative financial instruments | Fair value | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 30.7 11.5
Fair value through profit or loss | Cross Currency Swaps - used in hedge accounting    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 2.9 1.5
Fair value through profit or loss | Cross Currency Swaps - used in hedge accounting | Fair value    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 2.9 1.5
Fair value through profit or loss | Cross Currency Swaps - used in hedge accounting | Fair value | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 2.9 1.5
Fair value through profit or loss | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 23.6 10.8
Fair value through profit or loss | Derivative financial instruments | Fair value    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 23.6 10.8
Fair value through profit or loss | Derivative financial instruments | Fair value | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ 23.6 $ 10.8