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Employee Benefit Plans (Details) - Defined Benefit Plans - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Components of net periodic benefit cost    
Service cost $ 0.6 $ 0.7
Interest cost 0.8 0.7
Expected return on plan assets (2.4) (2.4)
Amortization of unrecognized loss 1.3 1.6
Settlement expense 0.4 0.4
Net periodic benefit cost 0.7 1.0
Amortization of unrecognized actuarial loss, provision for income tax $ (0.3) $ (0.4)