Quarterly report pursuant to Section 13 or 15(d)

Derivatives (Details) - Schedule of derivatives not designated as hedging instruments

v3.21.2
Derivatives (Details) - Schedule of derivatives not designated as hedging instruments - Not Designated as Hedging Instrument [Member] - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Cash collateral balance [Member]    
Derivatives (Details) - Schedule of derivatives not designated as hedging instruments [Line Items]    
Assets, fair value $ 757 $ 520
Commodity contracts [Member]    
Derivatives (Details) - Schedule of derivatives not designated as hedging instruments [Line Items]    
Assets, fair value 12,977 17,149
Liabilities, fair value $ 2,735