Quarterly report pursuant to Section 13 or 15(d)

Business Segment Information - Narrative (Details)

v3.8.0.1
Business Segment Information - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Jun. 30, 2016
Sep. 30, 2016
Canada      
Segment Reporting Information [Line Items]      
Asset reserves   $ 1,934  
Customer Who Declared Bankruptcy      
Segment Reporting Information [Line Items]      
Asset reserves $ 2,194   $ 3,195