Annual report pursuant to Section 13 and 15(d)

Segment Information (Details)

v3.20.1
Segment Information (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Segment Reporting Information [Line Items]    
Total consolidated revenue 100.00% 100.00%
North America [Member]    
Segment Reporting Information [Line Items]    
Total consolidated revenue 72.10% 69.60%
U.K. [Member]    
Segment Reporting Information [Line Items]    
Total consolidated revenue 5.50% 4.20%
Other foreign markets [Member]    
Segment Reporting Information [Line Items]    
Total consolidated revenue 22.40% 26.20%