Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net loss		$ (27.4)	$ (19.2)
Items of other comprehensive loss before income taxes:
Change in foreign currency translation adjustment		15.6	11.0
Change in unrealized loss from invested customer funds		(69.4)	(16.7)
Change in pension liability adjustment	[1]	3.1	3.8
Other comprehensive loss before income taxes		(50.7)	(1.9)
Income tax benefit, net		(17.6)	(3.4)
Other comprehensive (loss) income after income taxes		(33.1)	1.5
Comprehensive loss		$ (60.5)	$ (17.7)

[1] The amount of the pension liability adjustment recognized in the condensed consolidated statements of operations within other expense, net was $2.9 million and $3.8 million during the three months ended March 31, 2022, and 2021, respectively.