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Fair Value Measurements (Narrative) (Details)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Minimum    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Collateral discount 10.00% 10.00%
Maximum    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Collateral discount 30.00% 30.00%