Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Details)

v3.21.1
Financial Instruments (Details) - Commodity swaps
$ in Millions
3 Months Ended
Mar. 31, 2021
USD ($)
MMcf
Derivatives, Fair Value [Line Items]  
Hedged portions of expected sales of equity production | MMcf 5,600
Not Designated as Hedging Instrument  
Derivatives, Fair Value [Line Items]  
Realized gain on derivatives $ 0.4
Unrealized loss on derivatives 1.1
Level 2 | Not Designated as Hedging Instrument  
Derivatives, Fair Value [Line Items]  
Derivative liability, current 0.1
Derivative liability, noncurrent $ 0.1