Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Narrative) (Details)

v3.8.0.1
Segment Information (Narrative) (Details)
3 Months Ended
Mar. 31, 2018
item
segment
Segment Information [Abstract]  
Number of reportable segments | segment 1
Percentage of revenue from major customers, maximum 10.00%
Geographic regions 2
Sub-geographical regions 3