Restructuring - Schedule of Restructuring Reserve by Type of Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020
Restructuring Reserve [Roll Forward]
43830		$ 5.7	$ 5.7
Charged to Earnings	$ 2.2	3.0	5.2
Release of Liability			(1.1)
Payments Made			(7.0)
44012	2.8		2.8
Severance and related expense
Restructuring Reserve [Roll Forward]
Release of Liability			(1.1)
Restructuring Plan, 2018 | Severance and related expense
Restructuring Reserve [Roll Forward]
43830		4.2	4.2
Charged to Earnings	0.1	2.2	2.3
Release of Liability			(0.7)
Payments Made			(4.4)
44012	1.4		1.4
Restructuring Plan, 2018 | Other
Restructuring Reserve [Roll Forward]
43830		1.5	1.5
Charged to Earnings	0.5	0.1	0.6
Release of Liability			(0.4)
Payments Made			(1.6)
44012	0.1		0.1
Restructuring Plan, Other | Other
Restructuring Reserve [Roll Forward]
43830		0.0	0.0
Charged to Earnings	1.6	$ 0.7	2.3
Release of Liability			0.0
Payments Made			(1.0)
44012	$ 1.3		$ 1.3