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Derivative Activities - Additional Information (Detail)
1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2020
USD ($)
Mar. 31, 2021
USD ($)
MMBTU
Dec. 31, 2020
USD ($)
Dec. 31, 2021
t_per_M
Jun. 30, 2021
t_per_M
North Louisiana | Maximum | Contingent Consideration          
Derivative [Line Items]          
Potential contractual payout of contingent consideration $ 90,000,000.0 $ 75,000,000.0 $ 0    
Derivatives Excluding Basis Swaps and Freight Swaps          
Derivative [Line Items]          
Derivative assets liabilities at fair value net   (44,900,000)      
Commodity | Natural Gas Basis Swaps          
Derivative [Line Items]          
Derivative assets liabilities at fair value net   $ 9,500,000      
Volume Hedged | MMBTU   208,300,000      
Commodity | Propane Spread Swaps          
Derivative [Line Items]          
Derivative assets liabilities at fair value net   $ 472,000      
Freight | Swap | Fair Value, Inputs, Level 2          
Derivative [Line Items]          
Derivative assets liabilities at fair value net   $ 125,000      
Freight | Swap | Contracts Settle in 2021 | Fair Value, Inputs, Level 2 | Scenario Forecast          
Derivative [Line Items]          
Volume Hedged | t_per_M       10,000 5,000