Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 92.7	$ (9.5)	$ 80.2	$ (35.6)
Other comprehensive (loss) income, net of tax:
Foreign currency translation	(0.3)	0.7	(0.4)	1.7
Unrealized losses on hedging activities	(0.7)	(1.2)	(11.9)	(1.2)
Total other comprehensive (loss) income	(1.0)	(0.5)	(12.3)	0.5
Comprehensive income (loss)	$ 91.7	$ (10.0)	$ 67.9	$ (35.1)