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Financial Instruments and Fair Value - Schedule of Reconciliation of Changes in Fair Value of investments (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Debt Securities        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at beginning of period     $ 4.7  
Provision for credit loss included in selling, general and administrative expenses $ 0.0 $ 0.0 (4.7) $ 0.0
Balance at the end of period $ 0.0   $ 0.0  
Other Investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at beginning of period   2.1   3.8
Unrealized loss included in other expense, net   (2.1)   (3.8)
Balance at the end of period   $ 0.0   $ 0.0