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Fair Value Disclosures - Level 3 Roll Forward (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Net Asset (Liability) Value [Roll Forward]    
Beginning balance $ (333) $ 9,252
Purchases/additions (526) (843)
Payments received (35) (33)
Increase (decrease) in value 450 1,105
Ending balance (444) 9,481
Derivative Financial Instruments, Liabilities [Member] | Credit Risk Contract [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance (381) (535)
Additions (526) (843)
Payments received 0 0
Increase (decrease) in value 450 1,107
Ending balance (457) (271)
Corporate Debt Securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance   9,600
Purchases/additions   0
Payments received   0
Increase (decrease) in value   0
Ending balance   9,600
Loans [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance 48 187
Purchases/additions 0 0
Payments received (35) (33)
Increase (decrease) in value 0 (2)
Ending balance $ 13 $ 152