XML 87 R65.htm IDEA: XBRL DOCUMENT v3.20.2
Revenue from Contracts with Customers - Revenues from external customers (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Disaggregation of Revenue [Line Items]        
Total revenues $ 581,977 $ 533,732 $ 736,654 $ 691,710
Calculated under Revenue Guidance in Effect before Topic 606 [Member]        
Disaggregation of Revenue [Line Items]        
Total revenues     734,849  
Americas        
Disaggregation of Revenue [Line Items]        
Total revenues 287,942 259,216 356,331 328,749
Americas | Calculated under Revenue Guidance in Effect before Topic 606 [Member]        
Disaggregation of Revenue [Line Items]        
Total revenues     360,934  
United States        
Disaggregation of Revenue [Line Items]        
Total revenues 251,194 222,769 306,493 277,706
United States | Calculated under Revenue Guidance in Effect before Topic 606 [Member]        
Disaggregation of Revenue [Line Items]        
Total revenues     307,259  
EMEA        
Disaggregation of Revenue [Line Items]        
Total revenues 184,913 171,604 236,602 231,486
EMEA | Calculated under Revenue Guidance in Effect before Topic 606 [Member]        
Disaggregation of Revenue [Line Items]        
Total revenues     235,254  
United Kingdom        
Disaggregation of Revenue [Line Items]        
Total revenues 46,355 41,443 57,321 59,086
United Kingdom | Calculated under Revenue Guidance in Effect before Topic 606 [Member]        
Disaggregation of Revenue [Line Items]        
Total revenues     59,524  
Asia-Pacific ("APAC")        
Disaggregation of Revenue [Line Items]        
Total revenues $ 109,122 $ 102,912 143,721 $ 131,475
Asia-Pacific ("APAC") | Calculated under Revenue Guidance in Effect before Topic 606 [Member]        
Disaggregation of Revenue [Line Items]        
Total revenues     $ 138,661