XML 33 R73.htm IDEA: XBRL DOCUMENT v3.19.3
Retirement Benefits - Schedule of Net Benefit Costs (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost $ 0.6 $ 0.3 $ 1.5 $ 1.1
Interest cost 0.5 0.5 1.5 1.4
Expected return on plan assets (0.7) (0.5) (2.0) (1.6)
Amortization of net actuarial losses [1] 0.1 0.2 0.4 0.5
Amortization of transition obligation 0.0 (0.1) 0.0 (0.1)
Net periodic pension cost $ 0.5 $ 0.4 $ 1.4 $ 1.3
[1]
Reflects amounts reclassified from accumulated other comprehensive income to net income.