Segments - Schedule of Reconciliation of the Company's Segment Operating Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Total operating income	$ 10.7	$ 5.7
Operating (loss) income
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Total operating income	20.1	15.0
Corporate
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Total operating income	(9.4)	(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	$ 10.7	$ 5.7