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Description of the Business and Summary of Significant Accounting Policies - Use of estimates (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Jan. 01, 2024
Property, Plant and Equipment [Line Items]        
Property and equipment, useful life   4 years   5 years
Net income attributable to common stockholders $ 452.3 $ 453.6 $ 553.2  
Basic net income per share (in dollars per share) $ 1.42 $ 1.33 $ 1.53  
Diluted net income per share (in dollars per share) $ 1.40 $ 1.31 $ 1.52  
Service Life        
Property, Plant and Equipment [Line Items]        
Reduction in depreciation expense $ 30.5      
Net income attributable to common stockholders $ 23.5      
Basic net income per share (in dollars per share) $ 0.07      
Diluted net income per share (in dollars per share) $ 0.07