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Schedule of Defined Benefit Plans (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Retirement Benefits [Abstract]        
Interest cost     $ 0.8 $ 1.1
Expected return on plan assets $ (0.7) $ (0.7) (1.4) (1.5)
Net periodic benefit     $ (0.6) $ (0.4)