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Temporary Equity (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
Apr. 17, 2019
USD ($)
vote
Mar. 31, 2020
USD ($)
vote
Dec. 31, 2019
$ / shares
shares
Increase (Decrease) in Temporary Equity [Roll Forward]      
Beginning balance   $ 454,507  
Conversion of Class B common stock to Class A common stock   (1,526)  
Net income attributable to temporary equity   4,095  
Distribution to holders of temporary equity   (10,240)  
Adjustment of temporary equity to redemption amount   (206,017)  
Ending balance   $ 240,819  
Initial upward adjustment to redemption amount $ 194,500    
Class B Common Stock      
Temporary Equity [Line Items]      
Number of votes per share (vote) | vote   1  
Conversion of shares, number of shares received | vote 1    
Increase (Decrease) in Temporary Equity [Roll Forward]      
Temporary equity (in shares) | shares     22,847,045
Temporary equity, share price (in dollars per share) | $ / shares     $ 19.89
Class A Common Stock      
Temporary Equity [Line Items]      
Number of votes per share (vote) | vote   1  
Conversion of shares, number of shares received | vote 1    
Existing Owners of Brigham Minerals | Class B Common Stock      
Temporary Equity [Line Items]      
Sale of stock, ownership percentage   39.90%  
Number of votes per share (vote) | vote 1