Consolidated and Combined Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 113.3	$ 75.7	$ 89.7
Derivative financial instruments:
Unrealized losses arising during the period, net of tax expense (benefit) of ($0.7), ($0.3), and $0.0	(2.8)	(0.9)	0.0
Reclassification adjustments for losses included in net income, net of tax expense (benefit) of ($0.1), $0.0, and $0.0	0.3	0.0	0.0
Currency translation adjustment:
Unrealized gains (losses) arising during the period, net of tax expense (benefit) of $0.0, ($0.3), and $0.0	0.5	0.0	(1.4)
Reclassification adjustments for losses included in net income, net of tax expense (benefit) of $0.0, $0.0, and $0.0	0.0	3.0	0.0
Total other comprehensive income (loss)	(2.0)	2.1	(1.4)
Comprehensive income	$ 111.3	$ 77.8	$ 88.3