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Loans and Allowance for Credit Losses - Narrative (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) loan contract | Dec. 31, 2019 USD ($) loan contract
Loans and Leases Receivable Disclosure [Line Items] |  |
Unamortized net deferred fees | $ 30,800 | $ 25,200
Serving assets not reflected as loan balances | $ 124,000 | 99,000
Loans secured by real estate (percent) | 85.00% |
Repricing duration | 22 months |
Financing receivable, net | $ 7,650,633 | 7,472,090
Provision for Loan and Lease Losses | $ 45,404 | $ 13,091
Credit modification, number of loans | loan | 750 |
Credit modification exposure amount | $ 1,600,000 |
Credit modification, deferrals, number of loans | loan | 36 |
Credit modification, deferrals, exposure amount | $ 72,400 |
Credit modification, exposure percentage | 0.90% |
Number of loans | contract | 10 | 9
Financing receivable, modifications, recorded investment | $ 19,200 | $ 19,100
Number of restructured loans | loan | 2 |
Recorded investment - restructured loans, whose collateral property sold | $ 870 |
Number of defaulted loans charged-off | loan | 1 |
Restructured loans, proceeds from sale of collateral property | $ 138 |
Number of loans modified in TDR | loan | 2 | 1
Recorded investment - loans modified in TDR | $ 572 | $ 2,300
ADC Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing receivable, net | $ 1,400,000 |
Percent of ADC loan portfolio using interest reserves | 61.40% |
Home equity |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Unamortized net deferred fees | $ 30 | 32
Provision for Loan and Lease Losses | $ 230 | 57
Owner Occupied Commercial Real Estate and Construction |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Percent of loan portfolio | 15.00% |
Income Producing Commercial Real Estate and Real Estate Construction |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Percent of loan portfolio | 58.00% |
Maximum loan to value (percent) | 80.00% |
Minimum cash flow debt service coverage ratio | 1.15 |
Loan term | 5 years |
Stress test assumption increase interest rates | 2.00% |
Commercial Real Estate and Real Estate Construction Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Percent of loan portfolio | 73.00% |
Commercial |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Percent of loan portfolio | 19.00% |
Provision for Loan and Lease Losses | $ 18,797 | 7,438
Commercial | Minimum |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Preferred loan term | 5 years |
Commercial | Maximum |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loan term | 10 years |
Preferred loan term | 7 years |
Amortization term | 25 years |
Commercial | SBA Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Percent of loan portfolio | 1.00% |
Consumer Portfolio Segment |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Percent of loan portfolio | 1.00% |
Consumer Portfolio Segment | Land Acquisition Development and Construction Loans | Maximum |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loan term | 24 months |
Real estate mortgage - residential |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Provision for Loan and Lease Losses | $ 579 | $ 589
Real estate mortgage - residential | Real Estate Loan |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Percent of loan portfolio | 1.00% |
Real estate mortgage - residential | Land Acquisition Development and Construction Loans | Maximum |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loan term | 36 months |
PPP loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Percent of loan portfolio | 6.00% |
Performing Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Number of loans | loan | 6 | 7
Financing receivable, modifications, recorded investment | $ 10,500 | $ 16,600
Non-Performing Loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing receivable, modifications, recorded investment | $ 6,300 | $ 9,500
Number of loans subsequent defaults reclassified to non-performing | loan | 2 | 3

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