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RETIREMENT BENEFIT PLANS - Schedule of Net Periodic Pension Cost (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Retirement Benefits [Abstract]      
Service cost $ 1.5 $ 0.3 $ 0.3
Interest cost 5.1 4.8 5.2
Expected return on plan assets (3.5) (4.0) (3.9)
Amortization of net loss 0.6 0.3 0.3
Amortization of prior service cost 0.1 0.1 0.2
Net settlement loss recognized 0.0 0.2 0.0
Net periodic pension cost $ 3.8 $ 1.7 $ 2.1