Quarterly report pursuant to Section 13 or 15(d)

Business Segment Information Business Segment Information - Narrative (Details)

v3.5.0.2
Business Segment Information Business Segment Information - Narrative (Details) - business_segment
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Dec. 31, 2015
Segment Reporting [Abstract]      
Number of operating segments 4 4 5