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Certain Relationships and Related Party Transactions (Details)
$ in Millions
2 Months Ended 7 Months Ended 10 Months Ended 12 Months Ended
Jun. 30, 2017
USD ($)
Apr. 30, 2017
USD ($)
Feb. 28, 2017
USD ($)
Sep. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
employee
LINN Energy | Transition Services and Separation Agreement            
Related Party Transaction [Line Items]            
Related party transaction, monthly amount $ 2.7 $ 6.0        
Related party transaction, amount of transaction       $ 17.0 $ 17.0  
Accounts receivable, due from related parties         0.0  
Due to related parties         $ 0.0  
Predecessor            
Related Party Transaction [Line Items]            
Number of employees | employee           0
Predecessor | LINN Energy | Transition Services and Separation Agreement            
Related Party Transaction [Line Items]            
Related party transaction, amount of transaction     $ 0.0     $ 69.0
Accounts receivable, due from related parties           3.0
Due to related parties           $ 43.0