Quarterly report pursuant to Section 13 or 15(d)

Investments in Unconsolidated Affiliates (Details)

v3.22.2.2
Investments in Unconsolidated Affiliates (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
item
mi
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
item
mi
Sep. 30, 2021
USD ($)
Investments in unconsolidated affiliates        
Balance at beginning of period     $ 696,009  
Equity in earnings of unconsolidated affiliates $ 24,411 $ 24,088 70,467 $ 66,347
Distributions from unconsolidated affiliates     (90,470) $ (87,115)
Return of investment in unconsolidated affiliate     (17,000)  
Balance at end of period $ 659,006   $ 659,006  
Stonewall        
Equity Method Investments        
Ownership percentage 15.00%   15.00%  
Number of miles of pipeline | mi 67   67  
Investments in unconsolidated affiliates        
Balance at beginning of period     $ 130,572  
Equity in earnings of unconsolidated affiliates     5,367  
Distributions from unconsolidated affiliates     (9,000)  
Balance at end of period $ 126,939   $ 126,939  
MarkWest Joint Venture        
Equity Method Investments        
Ownership percentage 50.00%   50.00%  
Percentage of interest held by joint venture in third party fractionator in Ohio     33.33%  
Number of fractionators | item 2   2  
Investments in unconsolidated affiliates        
Balance at beginning of period     $ 565,437  
Equity in earnings of unconsolidated affiliates     65,100  
Distributions from unconsolidated affiliates     (81,470)  
Return of investment in unconsolidated affiliate     (17,000)  
Balance at end of period $ 532,067   $ 532,067