XML 36 R48.htm IDEA: XBRL DOCUMENT v3.20.1
Significant Risks and Uncertainties (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2018
rig
May 31, 2016
rig
Mar. 31, 2020
segment
Mar. 31, 2019
Dec. 31, 2019
rig
Concentration Risk [Line Items]          
Number of reportable segments (in segments) | segment     2    
Number of rigs in trough (in rigs) | rig 1,083 404     805
Rig count, percent decrease         26.00%
Customer Concentration Risk | Revenue          
Concentration Risk [Line Items]          
Concentration risk, percentage     17.00% 64.00%  
Supplier Concentration Risk | Purchases | Minimum          
Concentration Risk [Line Items]          
Concentration risk, percentage     5.00% 5.00%  
Supplier Concentration Risk | Purchases | Maximum          
Concentration Risk [Line Items]          
Concentration risk, percentage       10.00%  
Completion Services | Customer Concentration Risk | Revenue          
Concentration Risk [Line Items]          
Concentration risk, percentage     82.00% 98.00%