XML 81 R55.htm IDEA: XBRL DOCUMENT v3.20.2
Goodwill and Acquired Client Relationships - Schedule of Changes in Goodwill (Details)
$ in Millions
6 Months Ended
Jun. 30, 2020
USD ($)
Goodwill [Roll Forward]  
Balance, as of December 31, 2019 $ 2,651.7
Foreign currency translation (24.1)
Balance, as of June 30, 2020 $ 2,627.6