Quarterly report pursuant to Section 13 or 15(d)

Organization and Basis of Presentation - Narrative (Details)

v3.10.0.1
Organization and Basis of Presentation - Narrative (Details) - USD ($)
$ in Thousands
9 Months Ended
Dec. 31, 2017
Apr. 27, 2017
Sep. 30, 2018
Sep. 30, 2017
Variable Interest Entity [Line Items]        
Payments for acquisition     $ 4,005 $ 0
Proceeds from issuance of preferred stock     $ 0 $ 95,000
Tema        
Variable Interest Entity [Line Items]        
Warrants exercisable (shares)   4,000,000    
Rosehill Operating        
Variable Interest Entity [Line Items]        
Payments for acquisition   $ 35,000    
Aggregate indebtedness   55,000    
Proceeds from issuance   $ 60,600    
Warrants exercisable (shares)   4,000,000    
Tema        
Variable Interest Entity [Line Items]        
Working capital adjustment for related party debt $ 2,400 $ 5,600    
PIPE Investment        
Variable Interest Entity [Line Items]        
Issuance of preferred stock and warrants (shares)   20,000    
Rosemore Holdings        
Variable Interest Entity [Line Items]        
Public offering proceeds, net of offering costs (funds received and stock issued October 2, 2018)   $ 20,000    
Class B Common Stock | Rosehill Operating        
Variable Interest Entity [Line Items]        
Issuance of preferred stock and warrants (shares)   29,807,692    
Class A Common Stock | Rosehill Operating        
Variable Interest Entity [Line Items]        
Warrants exercisable (shares)   4,000,000    
Series A Preferred Stock | Rosehill Operating        
Variable Interest Entity [Line Items]        
Issuance of preferred stock and warrants (shares)   20,000    
Proceeds from issuance or sale of equity   $ 109,500    
Proceeds from issuance of preferred stock   90,800    
Proceeds from issuance of common stock   $ 18,700    
Series A Preferred Stock | PIPE Investment        
Variable Interest Entity [Line Items]        
Issuance of preferred stock and warrants (shares)   75,000    
Proceeds from warrant exercises   $ 55,000    
Private Placement | Class A Common Stock | PIPE Investment        
Variable Interest Entity [Line Items]        
Issuance of preferred stock and warrants (shares)   5,000,000    
Private Placement | Series A Preferred Stock | PIPE Investment        
Variable Interest Entity [Line Items]        
Issuance of preferred stock and warrants (shares)   75,000    
Stated interest rate of debt instrument (as a percent)   8.00%    
Private Placement | Warrant | PIPE Investment        
Variable Interest Entity [Line Items]        
Issuance of preferred stock and warrants (shares)   5,000,000    
Proceeds from warrant exercises   $ 70,800    
Variable Interest Entity, Primary Beneficiary | Tema        
Variable Interest Entity [Line Items]        
Ownership in variable interest entity (as a percent)   16.40% 18.40%  
Variable Interest Entity, Not Primary Beneficiary | Tema        
Variable Interest Entity [Line Items]        
Ownership in variable interest entity (as a percent)   83.60% 81.60%