Other Expenses - Schedule of Other Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Other Income and Expenses [Abstract]
Severance and related employee benefits	$ 1.3	$ 1.0	$ 1.7	$ 2.0
Facility-exit charges	(0.1)	(0.1)	(0.2)	0.1
Strategic initiatives	3.9	4.6	15.0	16.5
Transitioned employees restructuring expense	0.9	1.3	3.8	3.8
Digital Transformation Office	1.3	0.0	5.7	0.0
Other	0.1	0.5	0.9	0.5
Total other expenses	7.4	$ 7.3	26.9	$ 22.9
Reorganization liability	1.8		1.8
Receivables	$ 0.5		$ 0.5