Restructuring Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 1.0	$ 0.6	$ 0.0
Payments for Restructuring	(1.5)	(1.5)
Restructuring Charges	1.9	2.1
One-time Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.5	0.4	0.0
Payments for Restructuring	(0.8)	(0.4)
Restructuring Charges	0.9	0.8
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.5	0.2	$ 0.0
Payments for Restructuring	(0.7)	(1.1)
Restructuring Charges	$ 1.0	$ 1.3