Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.19.2
Segment Information (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Segment Reporting Information [Line Items]        
Total consolidated revenue 100.00% 100.00% 100.00% 100.00%
North America [Member]        
Segment Reporting Information [Line Items]        
Total consolidated revenue 59.00% 52.50% 60.00% 57.30%
U.K. [Member]        
Segment Reporting Information [Line Items]        
Total consolidated revenue 20.70% 23.60% 22.20% 22.00%
Other foreign markets [Member]        
Segment Reporting Information [Line Items]        
Total consolidated revenue 20.30% 23.90% 17.80% 20.70%