Restructuring Charge - Narrative (Details) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021 USD ($) employee	Jun. 30, 2020 USD ($) employee		Jun. 30, 2021 USD ($) employee	Jun. 30, 2020 USD ($) employee
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 10.1	$ 7.1	[1]	$ 15.9	$ 11.9	[2]
Severance costs	$ 8.0	$ 4.2		$ 12.7	$ 6.2
Number of employees impacted | employee	120	60		155	100
Contract termination, write-down of right-of-use assets and other exit costs	$ 2.1	$ 2.9		$ 3.2	$ 5.7

[1] See discussion in Note 1 - Basis of Presentation for further detail regarding the elimination of the International lag reporting.

[2] See discussion in Note 1 - Basis of Presentation for further detail regarding the elimination of the International lag reporting.