Restructuring Charge - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($) employee	Mar. 31, 2020 USD ($) employee
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 5.8	$ 4.8	[1]
Severance costs	$ 4.7	$ 2.0
Number of employees impacted | employee	35	40
Contract termination, write-down of right-of-use assets and other exit costs	$ 1.1	$ 2.8

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