XML 81 R64.htm IDEA: XBRL DOCUMENT v3.22.0.1
Segment information - Narrative (Details)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
country
segment
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Segment Reporting Information [Line Items]      
Number of countries in which the entity operates | country 100    
Number of operating segments | segment 4    
Change in allowance for doubtful accounts calculation method | $ $ 3.4 $ 14.6 $ 22.8
North America      
Segment Reporting Information [Line Items]      
Change in allowance for doubtful accounts calculation method | $ $ 12.3    
Subsidiaries      
Segment Reporting Information [Line Items]      
Number of countries in which the entity operates | country 53