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v3.19.3.a.u2

Summary of Significant Accounting Policies (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2019 | Dec. 31, 2019 USD ($) segment | Dec. 31, 2018 USD ($) | Jan. 01, 2019 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |
Operating Lease, Right-of-Use Asset |  | $ 14,843 |  | $ 15,500
Number of reportable segments | segment |  | 1 |  |
Required reserves on deposits maintained |  | $ 9,700 | $ 15,100 |
Minimum period of consecutive contractual payments to no longer be considered in nonaccrual status |  | 6 months |  |
Finite-lived intangible assets useful life |  |  | 10 years |
Operating Lease, Liability |  | $ 15,461 |  | $ 16,200
Furniture, Fixtures and Equipment [Member] | Minimum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property plant and equipment useful life |  | 3 years |  |
Furniture, Fixtures and Equipment [Member] | Maximum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property plant and equipment useful life |  | 10 years |  |
Building and Leasehold Improvements [Member] | Minimum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property plant and equipment useful life |  | 10 years |  |
Building and Leasehold Improvements [Member] | Maximum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property plant and equipment useful life |  | 40 years |  |
Software [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property plant and equipment useful life |  | 3 years |  |
Core Deposits [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Finite-lived intangible assets useful life | 10 years | 10 years |  |
State and Local Jurisdiction [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Right to receive state tax credit at agreed upon rates |  | 10 years |  |

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