Quarterly report pursuant to Section 13 or 15(d)

Related-Party Transactions (Details)

v3.19.1
Related-Party Transactions (Details)
$ in Thousands, shares in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2019
USD ($)
property
Mar. 31, 2018
USD ($)
Dec. 31, 2018
USD ($)
shares
Related Party Transaction [Line Items]      
Operating leases     $ 892
Operating leases, year two     721
Operating leases, year three     721
Operating leases, year four     721
Payable to related parties $ 30   10
Receivable from related parties $ 0   0
Related party leasing      
Related Party Transaction [Line Items]      
Number of properties adjacent to corporate office subject to leases | property 5    
Related party transportation services      
Related Party Transaction [Line Items]      
Expenses with related party $ 100 $ 30  
Related party equipment rental      
Related Party Transaction [Line Items]      
Expenses with related party 50 $ 50  
Property One | Related party leasing      
Related Party Transaction [Line Items]      
Operating leases 30    
Operating leases, year two 30    
Operating leases, year three 100    
Operating leases, year four 100    
Operating leases, year five 200    
Corporate offices | Related party leasing      
Related Party Transaction [Line Items]      
Operating leases 100    
Pioneer and Pioneer Pumping Services      
Related Party Transaction [Line Items]      
Payable to related parties 200   109,800
Receivable from related parties $ 93,700   15,700
Service Term ( in years) ( up to ) 10 years    
Asset Acquisition Cost     $ 110,000
Consideration Transferred ( in shares ) | shares     16.6
Concentration risk ( as a percent ) 29.30% 4.80%