Annual report pursuant to Section 13 and 15(d)

Segment Information (Details)

v3.21.1
Segment Information (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Line Items]    
Total consolidated revenue 100.00% 100.00%
North America [Member]    
Segment Reporting Information [Line Items]    
Total consolidated revenue 70.30% 72.10%
U.K. [Member]    
Segment Reporting Information [Line Items]    
Total consolidated revenue 3.10% 5.50%
Other foreign markets [Member]    
Segment Reporting Information [Line Items]    
Total consolidated revenue 26.60% 22.40%