Quarterly report pursuant to Section 13 or 15(d)

Business combinations (Details)

v3.20.4
Business combinations (Details)
$ in Thousands, $ in Millions, ₩ in Billions
Aug. 21, 2020
USD ($)
Aug. 21, 2020
KRW (₩)
Feb. 28, 2020
USD ($)
Feb. 28, 2020
AUD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
Aug. 21, 2020
KRW (₩)
Feb. 28, 2020
AUD ($)
Business Acquisition [Line Items]                
Goodwill         $ 595,927 $ 593,129    
InjuryNet                
Business Acquisition [Line Items]                
Percentage of voting equity interests acquired     100.00%         100.00%
Cash payment to acquire business     $ 4,400 $ 6.7        
Contingent consideration     2,100         $ 3.1
Goodwill     2,600          
Intangible assets     $ 900          
Index Root                
Business Acquisition [Line Items]                
Percentage of voting equity interests acquired 100.00%           100.00%  
Cash payment to acquire business $ 5,400 ₩ 6.3            
Contingent consideration 900           ₩ 1.1  
Goodwill 4,600              
Intangible assets $ 1,400