Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Details)

v3.20.2
Financial Instruments (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Jun. 30, 2020
USD ($)
Bcf
Not Designated as Hedging Instrument | Current asset    
Derivatives, Fair Value [Line Items]    
Derivative asset, gross $ 2.2 $ 2.2
Not Designated as Hedging Instrument | Current liabilities    
Derivatives, Fair Value [Line Items]    
Derivative liability, gross 0.3 $ 0.3
Commodity swaps    
Derivatives, Fair Value [Line Items]    
Hedged portions of expected sales of equity production | Bcf   6.7
Commodity swaps | Not Designated as Hedging Instrument    
Derivatives, Fair Value [Line Items]    
Realized gain on derivatives 1.5 $ 3.9
Unrealized loss on derivatives 1.8 1.7
Level 2 | Commodity swaps | Not Designated as Hedging Instrument | Current asset    
Derivatives, Fair Value [Line Items]    
Derivative assets (liabilities), net $ 1.9 $ 1.9