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Fair Value Assets and Liabilities measured on nonrecurring basis (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans carried at fair value | $ 2,090 | $ 6,399
Loans Receivable, Fair Value Disclosure | 6,441,458 | 5,580,780
Servicing Asset at Fair Value, Amount | 5,800 | 1,200
Other Assets, Fair Value Disclosure | 6,426,869 | 5,570,136
Other Repossessed Assets | 4,200 | 4,000
Nonrecurring basis |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 2,090 | 6,399
Servicing Asset at Fair Value, Amount | 5,797 | 1,169
Other Assets, Fair Value Disclosure | 3,033 | 3,674
Other Repossessed Assets | 3,599 | 3,464
Nonrecurring basis | Residential real estate |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 217 | 705
Nonrecurring basis | Construction Real Estate Remaining Commercial [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure |  | 1,635
Nonrecurring basis | Commercial Real Estate Portfolio Segment [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 1,873 | 4,059
Nonrecurring basis | Residential real estate |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure | 738 | 650
Nonrecurring basis | Commercial Real Estate [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure | 2,295 | 2,295
Nonrecurring basis | Construction Real Estate [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure |  | 729
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 0 | 0
Level 1 | Nonrecurring basis |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure | 0 | 0
Level 1 | Nonrecurring basis | Other Assets [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Repossessed Assets | 0 |
Level 1 | Nonrecurring basis | Commercial Real Estate Portfolio Segment [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure | 0 | 0
Level 1 | Nonrecurring basis | Residential real estate |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure | 0 | 0
Level 1 | Nonrecurring basis | Construction Real Estate [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure |  | 0
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 12,499 | 4,245
Level 2 | Nonrecurring basis |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Servicing Asset at Fair Value, Amount | 5,797 | 1,169
Other Assets, Fair Value Disclosure | 0 | 0
Level 2 | Nonrecurring basis | Other Assets [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Repossessed Assets | 0 |
Level 2 | Nonrecurring basis | Commercial Real Estate Portfolio Segment [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure | 0 | 0
Level 2 | Nonrecurring basis | Residential real estate |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure | 0 | 0
Level 2 | Nonrecurring basis | Construction Real Estate [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure |  | 0
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans carried at fair value | 2,090 | 6,399
Loans Receivable, Fair Value Disclosure | 6,428,959 | 5,576,535
Other Assets, Fair Value Disclosure | 6,426,869 | 5,570,136
Fair Value, Inputs, Level 3 [Member] | Nonrecurring basis |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 2,090 | 6,399
Other Assets, Fair Value Disclosure | 3,033 | 3,674
Other Repossessed Assets | 3,599 | 3,464
Fair Value, Inputs, Level 3 [Member] | Nonrecurring basis | Residential real estate |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 217 | 705
Fair Value, Inputs, Level 3 [Member] | Nonrecurring basis | Construction Real Estate Remaining Commercial [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure |  | 1,635
Fair Value, Inputs, Level 3 [Member] | Nonrecurring basis | Commercial Real Estate Portfolio Segment [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 1,873 | 4,059
Fair Value, Inputs, Level 3 [Member] | Nonrecurring basis | Residential real estate |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure | 738 | 650
Fair Value, Inputs, Level 3 [Member] | Nonrecurring basis | Commercial Real Estate [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure | $ 2,295 | 2,295
Fair Value, Inputs, Level 3 [Member] | Nonrecurring basis | Construction Real Estate [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other Assets, Fair Value Disclosure |  | $ 729

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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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