|6 Months Ended|
Jun. 30, 2018
|Revenue from Contract with Customer [Abstract]|
|Schedule of Disaggregation of Revenue||
Our revenue, disaggregated by type of revenue and segment, is as follows:
Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.
Reference 1: http://www.xbrl.org/2003/role/presentationRef