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Derivative Activities - Additional Information (Detail)
9 Months Ended
Sep. 30, 2021
USD ($)
MMBTU
Mar. 31, 2022
TPerM
Dec. 31, 2021
TPerM
Contingent Consideration      
Derivative [Line Items]      
Derivative assets liabilities at fair value net $ 34,300    
Contingent Consideration | Minimum      
Derivative [Line Items]      
Derivative assets liabilities at fair value net 50,200,000    
Contingent Consideration | North Louisiana | Maximum      
Derivative [Line Items]      
Potential contractual payout of contingent consideration 75,000,000.0    
Derivatives Excluding Basis Swaps and Freight Swaps      
Derivative [Line Items]      
Derivative assets liabilities at fair value net 776,100,000    
Commodity | Natural Gas Basis Swaps      
Derivative [Line Items]      
Derivative assets liabilities at fair value net $ 8,500,000    
Volume Hedged | MMBTU 204,967,500    
Commodity | Propane Spread Swaps      
Derivative [Line Items]      
Derivative assets liabilities at fair value net $ 394,000    
Freight | Propane Spread Swaps | Contracts Settle in 2021 | Fair Value, Inputs, Level 2      
Derivative [Line Items]      
Derivative assets liabilities at fair value net $ (26,000)    
Freight | Swaps | Contracts Settle in 2021 | Fair Value, Inputs, Level 2 | Scenario Forecast      
Derivative [Line Items]      
Volume Hedged | TPerM     12,000
Freight | Swaps | Contracts Settle in 2022 | Fair Value, Inputs, Level 2 | Scenario Forecast      
Derivative [Line Items]      
Volume Hedged | TPerM   7,000