Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.5.0.2
Segment Information (Details) - Revenue [Member]
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Segment Reporting Information [Line Items]        
Total consolidated revenue 100.00% 100.00% 100.00% 100.00%
U.S. [Member]        
Segment Reporting Information [Line Items]        
Total consolidated revenue 61.60% 64.00% 62.60% 66.60%
Canada [Member]        
Segment Reporting Information [Line Items]        
Total consolidated revenue 3.90% 6.00% 4.20% 7.00%
U.K. [Member]        
Segment Reporting Information [Line Items]        
Total consolidated revenue 20.00% 22.20% 20.40% 20.10%
Other foreign markets [Member]        
Segment Reporting Information [Line Items]        
Total consolidated revenue 14.50% 7.80% 12.80% 6.30%