XML 50 R31.htm IDEA: XBRL DOCUMENT v3.19.3
Organization, Description of Business and Basis of Presentation (Details) - Equipment rental revenue - Product concentration risk
9 Months Ended
Sep. 30, 2019
Business Acquisition [Line Items]  
Percentage of equipment rental revenue 86.00%
Topic 842  
Business Acquisition [Line Items]  
Percentage of equipment rental revenue 78.00%