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Long-Term Incentive Plans - Additional Information (Detail) - USD ($)
1 Months Ended 2 Months Ended 6 Months Ended 9 Months Ended
Aug. 05, 2019
Mar. 07, 2019
Mar. 01, 2018
Nov. 01, 2017
Nov. 23, 2016
Aug. 05, 2019
Sep. 30, 2019
Jun. 30, 2019
Sep. 30, 2019
Dec. 31, 2018
Jun. 30, 2017
May 31, 2017
Oct. 21, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Shares vested           38,181 602,053 412,938          
TSUs [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Unrecognized compensation cost             $ 3,200,000   $ 3,200,000        
Weighted-average period of unrecognized compensation cost                 1 year 7 months 6 days        
PSUs [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Unrecognized compensation cost             $ 600,000   $ 600,000        
Weighted-average period of unrecognized compensation cost                 1 year 2 months 12 days        
Decrease in share targets                 $ 0.25        
Shares outstanding             25,662   25,662        
PSUs [Member] | Market Vesting Date [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Stock units vesting percentage                 50.00%        
PSUs [Member] | First Anniversary Market-Vesting Date [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Stock units vesting percentage                 25.00%        
PSUs [Member] | Second Anniversary Market-Vesting Date [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Stock units vesting percentage                 25.00%        
Restricted Stock Units (RSUs) [Member] | Non-Employee Director [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Trailing average share price period based on common stock         60 days                
Restricted Stock Units (RSUs) [Member] | Non-Employee Director [Member] | Minimum [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Market Price Hurdle         $ 30.00                
Restricted Stock Units (RSUs) [Member] | CEO [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Shares outstanding 135,778         135,778 0   0        
Shares vested 135,778               0        
Shares granted       135,778                  
Vesting percent, actual TSR       50.00%                  
Days considered for calculation of average stock price       20 days                  
Vesting percent, relative TSR       50.00%                  
Restricted Stock Units (RSUs) [Member] | CEO [Member] | Maximum [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Stock units vesting percentage       120.00%                  
Restricted Stock Units (RSUs) [Member] | Market Condition Awards [Member] | Non-Employee Director [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Shares outstanding 50,864         50,864 0   0        
Shares vested 50,864               0        
Share-based payment arrangement, unrecognized stock-based compensation expense             $ 0   $ 0        
2018 Performance Stock Units [Member] | Executive Management [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Shares granted     96,305                    
Midstates 2018 Performance Stock Units                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Shares outstanding             0   0        
Shares vested 96,305                        
Midstates 2019 Performance Stock Units                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Shares outstanding             0   0        
Shares vested 193,921                        
Shares granted   193,921                      
Management Incentive Plan [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Aggregate shares of common stock reserved for issuance                       2,166,803  
Management Incentive Plan [Member] | TSUs [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Shares outstanding             358,641   358,641 557,963      
Shares vested                 444,142        
Shares granted [1]                 280,416        
Management Incentive Plan [Member] | PSUs [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Shares outstanding             339,151   339,151 367,141      
Shares vested                 0        
Shares granted [2]                 16,562        
2017 Non-Employee Directors Compensation Plan [Member] | Restricted Stock Units (RSUs) [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Aggregate shares of common stock reserved for issuance                     186,600    
Unrecognized compensation cost             $ 400,000   $ 400,000        
Weighted-average period of unrecognized compensation cost                 2 years 1 month 6 days        
Shares outstanding             30,619   30,619 36,955      
Shares vested                 46,396        
Shares granted [3]                 40,060        
Midstates 2016 Long Term Incentive Plan [Member] | PSUs [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Aggregate shares of common stock reserved for issuance                         3,513,950
Midstates 2016 Long Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Shares outstanding 353,464         353,464 25,662   25,662        
Shares vested             327,802            
Shares granted             0            
Midstates 2016 Long Term Incentive Plan [Member] | Stock Options [Member]                          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                          
Options outstanding             3,495   3,495        
Vesting period                 3 years        
Expiration period                 10 years        
[1] The aggregate grant date fair value of TSUs issued for the nine months ended September 30, 2019 was $1.9 million based on a grant date market price ranging from $4.48 to $8.70 per share.
[2] The aggregate grant date fair value of PSUs issued for the nine months ended September 30, 2019 was less than $0.1 million based on a calculated fair value price ranging from $1.64 to $6.76 per share.
[3] The aggregate grant date fair value of Board RSUs issued for the nine months ended September 30, 2019 was $0.3 million based on grant date market price of $6.95 per share.