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Allowance for Loan and Lease Losses - Troubled Debt Restructuring Modifications (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 USD ($) property contract | Mar. 31, 2018 USD ($) contract | Dec. 31, 2018 USD ($) property contract
Troubled debt restructuring modifications |  |  |
Number of Contracts | contract | 5 |  |
Recorded Investment | $ 1,268 |  |
Related Allowance | 38 |  |
Aggregate commitments to extend credit, standby letters of credit and commercial letters of credit | 5,700,000 |  | $ 5,800,000
Commitments related to borrowers who had loan terms modified in a TDR | $ 1,100 |  | $ 1,800
Loans modified in TDRs that experienced a payment default |  |  |
Period past due for payment default | 30 days |  |
Number of contracts | contract |  | 2 |
Recorded Investment |  | $ 564 |
Commercial and Industrial |  |  |
Troubled debt restructuring modifications |  |  |
Number of Contracts | contract | 4 |  |
Recorded Investment | $ 916 |  |
Related Allowance | $ 24 |  |
Loans modified in TDRs that experienced a payment default |  |  |
Number of contracts | contract |  | 2 |
Recorded Investment |  | $ 564 |
Residential |  |  |
Troubled debt restructuring modifications |  |  |
Period of time monthly payments are lowered to accommodate borrowers' financial needs | 2 years |  |
Number of Contracts | contract | 1 |  |
Recorded Investment | $ 352 |  |
Related Allowance | $ 14 |  |
Loans modified in TDRs that experienced a payment default |  |  |
Number of residential mortgage loans collateralized by real estate property and modified in a TDR in the process of foreclosure | contract | 1 |  | 1
Residential mortgage loans collateralized by real estate property and modified in a TDR in the process of foreclosure | $ 300 |  | $ 300
Residential | Real estate property held from foreclosed TDR |  |  |
Loans modified in TDRs that experienced a payment default |  |  |
Number of real estate properties | property | 1 |  | 1
Real estate property held from a foreclosed TDR | $ 100 |  | $ 800
Consumer | Minimum |  |  |
Troubled debt restructuring modifications |  |  |
Threshold period past due for charge-off | 120 days |  |
Consumer | Maximum |  |  |
Troubled debt restructuring modifications |  |  |
Threshold period past due for charge-off | 180 days |  |
Home Equity Line | Real estate property held from foreclosed TDR |  |  |
Loans modified in TDRs that experienced a payment default |  |  |
Number of real estate properties | property |  |  | 1
Commitments to extend credit |  |  |
Troubled debt restructuring modifications |  |  |
Aggregate commitments to extend credit, standby letters of credit and commercial letters of credit | $ 5,468,976 |  | $ 5,549,591
Standby letters of credit |  |  |
Troubled debt restructuring modifications |  |  |
Aggregate commitments to extend credit, standby letters of credit and commercial letters of credit | 186,321 |  | 204,324
Commercial Letters of credit |  |  |
Troubled debt restructuring modifications |  |  |
Aggregate commitments to extend credit, standby letters of credit and commercial letters of credit | $ 9,602 |  | $ 7,535

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