Quarterly report pursuant to Section 13 or 15(d)

Business (Details)

v3.8.0.1
Business (Details) - segment
3 Months Ended 6 Months Ended
Jun. 30, 2017
Mar. 31, 2017
Jun. 30, 2016
Segment Reporting Information [Line Items]      
Number of operating segments 2 3 2