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Offsetting of Financial Assets and Liabilities (Offsetting Assets) (Details) - Derivatives [Member]
Dec. 31, 2019
USD ($)
Offsetting Assets [Line Items]  
Gross Amount of Recognized Assets $ 6,000
Gross amounts Offset in the Statement of Financial Condition 0
Net Amount of Assets Presented in Statement of Financial Condition 6,000
Financial Instruments 0
Cash Collateral Received 0
Net Amount $ 6,000