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Debt and Interest Expense - Additional Information (Detail) - USD ($)
1 Months Ended 12 Months Ended
Dec. 31, 2019
Nov. 30, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]          
Debt covenant, leverage ratio     550.00%    
Ratio of debt to EBITDA     500.00%    
Secured leverage ratio - Maximum     400.00%    
Debt instrument covenant, description     The Credit Facilities contain representations and warranties, affirmative and negative covenants and events of default that the Partnership considers to be customary for an agreement of this type, including a covenant that requires the Partnership to maintain a ratio of total debt to EBITDA (as defined in the Credit Facilities) for the prior four fiscal quarters of not greater than 5.00 to 1.00 as of the last day of each fiscal quarter (5.50 to 1.00 during the specified period following certain acquisitions) and, prior to the Partnership obtaining an investment grade credit rating, a ratio of secured debt to EBITDA for the prior four fiscal quarters of not greater than 4.00 to 1.00 as of the last day of each fiscal quarter.    
Total long-term debt $ 1,753,500,000   $ 1,753,500,000 $ 981,100,000  
Line of credit interest paid on credit facilities, including facility fees     60,800,000 $ 42,700,000 $ 18,800,000
Carrying Value          
Debt Instrument [Line Items]          
Total long-term debt 1,753,500,000   1,753,500,000    
Level 2          
Debt Instrument [Line Items]          
Total long-term debt fair value $ 1,820,100,000   1,820,100,000    
Revolving Credit Facility          
Debt Instrument [Line Items]          
Credit facility - Term 5 years        
Maximum borrowing capacity $ 1,000,000,000   1,000,000,000    
Borrowings $ 32,000,000   32,000,000    
Revolving Credit Facility | Hess Infrastructure Partners LP          
Debt Instrument [Line Items]          
Credit facility - Term       5 years  
Maximum borrowing capacity       $ 600,000,000  
Revolving Credit Facility | Minimum          
Debt Instrument [Line Items]          
Interest rate applicable margin 1.275%        
Revolving Credit Facility | Maximum          
Debt Instrument [Line Items]          
Interest rate applicable margin 2.00%        
Term Loan A Facility          
Debt Instrument [Line Items]          
Credit facility - Term 5 years        
Maximum borrowing capacity $ 400,000,000   400,000,000    
Cash received 210,000,000        
Borrowings $ 400,000,000   $ 400,000,000    
Term Loan A Facility | Hess Infrastructure Partners LP          
Debt Instrument [Line Items]          
Credit facility - Term       5 years  
Maximum borrowing capacity       $ 200,000,000  
Syndicated Revolving Credit Facility          
Debt Instrument [Line Items]          
Credit facility - Term 5 years        
Syndicated Revolving Credit Facility | Minimum          
Debt Instrument [Line Items]          
Interest rate applicable margin 1.275%        
Syndicated Revolving Credit Facility | Maximum          
Debt Instrument [Line Items]          
Interest rate applicable margin 2.00%        
Senior Secured Syndicated Credit Facilities | Hess Infrastructure Partners LP          
Debt Instrument [Line Items]          
Debt instrument due year       2022  
Maximum borrowing capacity       $ 800,000,000  
Senior Secured Revolving Credit Facility | Hess Infrastructure Partners LP          
Debt Instrument [Line Items]          
Debt instrument due year       2021  
Credit facility - Term       4 years  
Maximum borrowing capacity       $ 300,000,000  
Fixed-Rate Senior Notes          
Debt Instrument [Line Items]          
Debt covenant, leverage ratio     425.00%    
5.625% Fixed Rate Senior Notes due 2026          
Debt Instrument [Line Items]          
Debt instrument interest rate 5.625%   5.625%    
Debt instrument due year     2026    
5.625% Fixed Rate Senior Notes due 2026 | Hess Infrastructure Partners LP          
Debt Instrument [Line Items]          
Fixed-rate senior notes   $ 800,000,000      
5.625% Fixed Rate Senior Notes due 2026 | Hess Midstream Operations LP          
Debt Instrument [Line Items]          
Fixed-rate senior notes $ 800,000,000   $ 800,000,000    
5.625% Fixed Rate Senior Notes due 2026 | Fixed-Rate Senior Notes          
Debt Instrument [Line Items]          
Debt instrument due year     2026    
5.625% Fixed Rate Senior Notes due 2026 | Fixed-Rate Senior Notes | Hess Infrastructure Partners LP          
Debt Instrument [Line Items]          
Debt instrument interest rate   5.625%      
Debt instrument due year   2026      
5.625% Fixed Rate Senior Notes due 2026 | Fixed-Rate Senior Notes | Hess Midstream Operations LP          
Debt Instrument [Line Items]          
Debt instrument interest rate 5.625%   5.625%    
Debt instrument due year 2026        
Exchange consent fee $ 2,000,000        
Frequency of periodic interest payment     semiannually    
Interest payment terms     Interest is payable semiannually on February 15 and August 15    
5.125% Fixed Rate Senior Notes due 2028          
Debt Instrument [Line Items]          
Fixed-rate senior notes $ 550,000,000   $ 550,000,000    
Debt instrument interest rate 5.125%   5.125%    
Debt instrument due year     2028    
5.125% Fixed Rate Senior Notes due 2028 | Fixed-Rate Senior Notes          
Debt Instrument [Line Items]          
Debt instrument interest rate 5.125%   5.125%    
Debt instrument due year 2028   2028    
Frequency of periodic interest payment     semiannually    
Interest payment terms     Interest is payable semiannually on June 15 and December 15.