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Fair Value (Fair Value, Assets Measured on Recurring Basis Using Significant Unobservable Inputs (Level 3)) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 347 $ 347
Sales 0 0
Settlements 347 0
Purchases 0 0
Issuances 0 0
Total realized/unrealized loss (gains) included in net income (loss) 0 0
Net gain included in other comprehensive income 0 7
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Ending balance $ 0 $ 354