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Transactions With Related Parties - Related Party Transactions, Extensions of Credit (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Notes Receivable, Related Parties rollforward [Roll Forward]    
Balance, beginning of year $ 20,138 $ 66,391
New extensions of credit 4,022 2,503
Repayments (17,624) (48,756)
Balance, end of year $ 6,536 $ 20,138