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Fair Values (Summary of Changes in Level 3 Assets) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 28,092 $ 25,274
Purchases 0 3,375
Repayments (215) (201)
Unrealized gains (losses) recorded in other comprehensive income (4,623) (374)
Ending balance $ 23,254 $ 28,074