Annual report pursuant to Section 13 and 15(d)

Organization and Basis of Presentation - Narrative (Details)

v3.19.1
Organization and Basis of Presentation - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
 2 Months Ended 12 Months Ended
Jul. 30, 2018
Jun. 29, 2018
Jun. 05, 2017
Oct. 19, 2016
Nov. 24, 2014
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
 [1]
Dec. 31, 2016
 [2]
Business Acquisition [Line Items]                  
Shares issued (in shares) 385,000                
Sale of stock, price per share (in USD per share)   $ 38.01              
Proceeds from initial public offering             $ 0 $ 0 $ 105,839
Operating Entities                  
Business Acquisition [Line Items]                  
Shares issued in acquisition (in shares)         20,000,000        
Sturgeon LLC and Stingray Acquisition                  
Business Acquisition [Line Items]                  
Shares issued in acquisition (in shares)     7,000,000            
IPO                  
Business Acquisition [Line Items]                  
Shares issued (in shares)       7,750,000          
Sale of stock, price per share (in USD per share)       $ 15.00          
Proceeds from initial public offering       $ 103,100          
IPO | Mammoth Holdings, Gulfport and Rhino                  
Business Acquisition [Line Items]                  
Shares issued (in shares)       250,000          
Over-Allotment Option                  
Business Acquisition [Line Items]                  
Shares issued (in shares)   600,000   7,500,000   7,500,000      
Secondary Public Offering                  
Business Acquisition [Line Items]                  
Shares issued (in shares)   4,000,000              
[1] Financial information includes the results attributable to Sturgeon for the entire period presented. See Note 4.
[2] Financial information has been recast to include results attributable to Sturgeon. See Note 4.