Segments - Schedule of Reconciliation of the Company's Segment Operating Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Total operating income	$ 5.7	$ 16.2
Restructuring expense	1.5	4.5
Segment Operating Income
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Total operating income	15.0	25.9
Corporate
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Total operating income	(9.3)	(9.3)
Reconciliation of Company's Segment Operating Income
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Total operating income	$ 5.7	16.2
Restructuring expense		(0.1)
Unallocated other operating income (expense) - net		$ (0.3)