v3.24.2.u1
RELATED PARTY TRANSACTIONS - Long-term loan from parent company (Details)
€ in Millions, $ in Millions
3 Months Ended 6 Months Ended
Feb. 04, 2024
USD ($)
Feb. 04, 2024
EUR (€)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Disclosure of transactions between related parties [line items]              
Amount of long-term loans granted     $ 0.0   $ 0.0   $ 4,077.0
Interest cost on interest bearing debt     42.6 $ 39.3 89.1 $ 74.1  
Amount of loan set off | €   € 125.5          
Parent company (Amer Sports Holding (Cayman) Limited)              
Disclosure of transactions between related parties [line items]              
Amount of long-term loans granted     0.0   0.0   4,077.5
Interest cost on interest bearing debt     $ 0.0 58.3 $ 21.6 107.1  
Applicable margin aggregated to arrive at the interest rate percentage, one (as a percent)     4.00%   4.00%    
Applicable margin aggregated to arrive at the interest rate percentage, two (as a percent)     4.25%   4.25%    
Applicable margin aggregated to arrive at the interest rate percentage, three (as a percent)     4.50%   4.50%    
Amount of loan equitized $ 2,540.0 € 2,300.0          
Parent company (Amer Sports Holding (Cayman) Limited) | Investment Loan              
Disclosure of transactions between related parties [line items]              
Amount of long-term loans granted     $ 0.0   $ 0.0   2,641.0
Interest cost on interest bearing debt     $ 0.0 52.9 $ 19.1 97.1  
Parent company (Amer Sports Holding (Cayman) Limited) | Investment Loan | LIBOR              
Disclosure of transactions between related parties [line items]              
Adjustment to interest rate basis (as a percent)     0.25%   0.25%    
Parent company (Amer Sports Holding (Cayman) Limited) | Facility A Loan              
Disclosure of transactions between related parties [line items]              
Amount of long-term loans granted     $ 0.0   $ 0.0   $ 1,436.5
Interest cost on interest bearing debt     $ 0.0 $ 5.4 $ 2.5 $ 10.0  
Applicable margin aggregated to arrive at the interest rate percentage, one (as a percent)     2.00%   2.00%    
Applicable margin aggregated to arrive at the interest rate percentage, two (as a percent)     1.75%   1.75%