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Commitments and Contingencies Legal Proceedings (Details)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
Pacific Northwest Solar, LLC (PNWS) [Member]  
Loss Contingencies [Line Items]  
Loss Contingency, Damages Sought, Value $ 8.0
Loss Contingency, Damages Awarded, Value 0.4
Riverbed Rents [Member]  
Loss Contingencies [Line Items]  
Annual riverbed rent exposure $ 3.8