XML 60 R44.htm IDEA: XBRL DOCUMENT v3.21.2
Investments in Unconsolidated Affiliates (Narrative) (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 31, 2021
Dec. 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Schedule of Equity Method Investments [Line Items]            
Earnings (loss) from unconsolidated affiliates, net     $ 4.9 $ 10.5 $ (125.9) $ 24.4
Interest paid         8.6  
Stagecoach Gas Services LLC            
Schedule of Equity Method Investments [Line Items]            
Proceeds from sale $ 1,195.0          
Difference between carrying amount and underlying equity     51.3   51.3  
Earnings (loss) from unconsolidated affiliates, net     0.9 9.9 (139.4) 28.3
Transaction costs 3.0          
Payment for contingent consideration $ 40.0       57.0  
Interest paid         2.1  
Stagecoach Gas Services LLC | Forecast            
Schedule of Equity Method Investments [Line Items]            
Proceeds from sale   $ 30.0        
Stagecoach Gas Services LLC | Equity Method Investment, Nonconsolidated Investee or Group of Investees            
Schedule of Equity Method Investments [Line Items]            
Earnings (loss) from unconsolidated affiliates, net         155.4  
Crestwood Permian Basin Holdings LLC            
Schedule of Equity Method Investments [Line Items]            
Difference between carrying amount and underlying equity     7.5   7.5  
Earnings (loss) from unconsolidated affiliates, net     4.2 0.5 4.4 0.3
Guarantee payment     $ 10.0   $ 10.0  
Ownership percentage     50.00%   50.00%  
Crestwood Midstream Partners LP            
Schedule of Equity Method Investments [Line Items]            
Earnings (loss) from unconsolidated affiliates, net     $ 4.9 $ 10.5 $ (125.9) $ 24.4