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RETIREMENT BENEFIT PLANS - Schedule of Fair Value of Pension Plan Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value $ 75.5 $ 73.0 $ 83.9
Total      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 65.5 64.1  
Total | Cash and equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 7.1 43.2  
Total | Mutual funds      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 52.8 15.9  
Total | Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 5.6 5.0  
Quoted Prices in Active Market (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 7.1 43.2  
Quoted Prices in Active Market (Level 1) | Cash and equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 7.1 43.2  
Quoted Prices in Active Market (Level 1) | Mutual funds      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0.0 0.0  
Quoted Prices in Active Market (Level 1) | Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0.0 0.0  
Significant Other Observable Inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 58.4 20.9  
Significant Other Observable Inputs (Level 2) | Cash and equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0.0 0.0  
Significant Other Observable Inputs (Level 2) | Mutual funds      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 52.8 15.9  
Significant Other Observable Inputs (Level 2) | Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 5.6 5.0  
Significant Unobservable Inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0.0 0.0  
Significant Unobservable Inputs (Level 3) | Cash and equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0.0 0.0  
Significant Unobservable Inputs (Level 3) | Mutual funds      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0.0 0.0  
Significant Unobservable Inputs (Level 3) | Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0.0 0.0  
Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value $ 10.0 $ 8.9