Annual report pursuant to Section 13 and 15(d)

ORGANIZATION AND HISTORY (Details)

v3.10.0.1
ORGANIZATION AND HISTORY (Details)
$ / shares in Units, hydraulic_horse_power in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
hydraulic_horse_power
fleet
coiled_tubing_unit
$ / shares
shares
Mar. 22, 2017
USD ($)
$ / shares
shares
Dec. 22, 2016
shares
Dec. 31, 2018
USD ($)
fleet
$ / shares
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2016
USD ($)
Nov. 24, 2015
fleet
Sep. 30, 2013
$ / shares
Class of Stock [Line Items]                
Stock split ratio     0.0059          
Stock, shares authorized (in shares) | shares     230,000,000          
Common stock, authorized (in shares) | shares 200,000,000   200,000,000 200,000,000 200,000,000      
Preferred stock, authorized (in shares) | shares 30,000,000   30,000,000 30,000,000 30,000,000      
Common stock, par value (in dollars per share) | $ / shares $ 0.001     $ 0.001 $ 0.001     $ 0.001
Proceeds from IPO | $       $ 0 $ 185,500 $ 0    
Repayment of outstanding borrowings | $   $ 71,800   80,946 166,546 41,295    
Funds to purchase additional hydraulic fracturing fleets and other equipment | $   $ 86,800   $ 284,197 $ 285,891 $ 42,832    
Number of hydraulic fracturing fleets | fleet             3  
Pioneer and Pioneer Pumping Services                
Class of Stock [Line Items]                
Payments for asset acquisition | $ $ 110,000              
Stock Issued in asset acquisition | shares 16,600,000              
Asset acquisition costs | $ $ 3,400              
Service provider, term 10 years              
Number of hydraulic fracturing fleets | fleet 8     8        
Hydraulic fracturing fleet, hydraulic horse power (HHP) | hydraulic_horse_power 510              
Number of coiled tubing units | coiled_tubing_unit 4              
IPO                
Class of Stock [Line Items]                
Shares of common stock sold, including shares sold by third parties (in shares) | shares   25,000,000            
Common stock, par value (in dollars per share) | $ / shares   $ 0.001            
Stock price (in dollars per share) | $ / shares   $ 14.00            
Proceeds from IPO | $   $ 170,100            
Payment of underwriting discounts and commissions | $   10,900            
Payments of stock issuance costs, other | $   $ 4,500            
IPO | Series A Preferred Stock                
Class of Stock [Line Items]                
Number of shares of outstanding stock converted (in shares) | shares   16,999,990            
IPO | March 2017 Stock Split                
Class of Stock [Line Items]                
Stock split ratio   1.45            
IPO | Series A Preferred Stock Converted To Common Stock | Series A Preferred Stock                
Class of Stock [Line Items]                
Stock split ratio   1            
IPO sold by Company                
Class of Stock [Line Items]                
Shares of common stock sold, including shares sold by third parties (in shares) | shares   13,250,000            
IPO sold by existing stockholders                
Class of Stock [Line Items]                
Shares of common stock sold, including shares sold by third parties (in shares) | shares   11,750,000