XML 78 R48.htm IDEA: XBRL DOCUMENT v3.22.2
Fair value measurements - Contingent Consideration Roll Forward (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Unobservable Input Reconciliation [Roll Forward]        
Balance, beginning of period     $ 37.2  
Change in fair value $ 1.3 $ 0.6 1.8 $ 1.7
Settlements     (30.9)  
Balance, end of period $ 8.1   $ 8.1