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Allowance for Credit Losses (Note Restructurings During Period) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 USD ($) loans | Jun. 30, 2020 USD ($) loans | Jun. 30, 2021 USD ($) loans | Jun. 30, 2020 USD ($) loans
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loans | 121 | 146 | 250 | 317
Recorded investment at period end | $ | $ 21,557 | $ 37,040 | $ 43,652 | $ 54,014
Interest only period provided |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loans | 4 | 7 | 10 | 17
Recorded investment at period end | $ | $ 3,353 | $ 15,352 | $ 10,118 | $ 19,328
Loan term extension |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loans | 41 | 27 | 66 | 33
Recorded investment at period end | $ | $ 4,053 | $ 2,925 | $ 7,700 | $ 3,657
Below market interest rate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loans | 37 | 69 | 90 | 157
Recorded investment at period end | $ | $ 7,730 | $ 17,291 | $ 15,643 | $ 25,389
Discharged from bankruptcy |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loans | 39 | 43 | 84 | 110
Recorded investment at period end | $ | $ 6,421 | $ 1,472 | $ 10,191 | $ 5,640

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