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Income Taxes - Narrative (Details) | 12 Months Ended |
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Dec. 31, 2019 USD ($) state | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Income Tax Disclosure [Abstract] |  |  |  |
Statutory federal income tax rate | 24.70% | 24.70% |  |
Income Tax Examination [Line Items] |  |  |  |
Amount recognized as a component of income tax expense related low-income housing tax credit | $ 300,000 | $ 100,000 | $ 300,000 |
Investments related to low-income housing tax credits | 4,000,000.0 | 1,400,000 |  |
Impairment losses recognized from forfeiture or ineligibility | 0 |  |  |
Future capital commitments related to low-income housing tax credit investments | 700,000 |  |  |
State valuation allowance | 2,932,000 | 0 |  |
Deferred Tax Assets, Net | $ 14,379,000 | 20,724,000 |  |
Number of states the company files income tax returns in | state | 11 |  |  |
Unrecognized tax benefits | $ 1,497,000 | 1,301,000 | 1,244,000 | $ 1,180,000
Unrecognized tax benefits that would impact effective tax rate | 1,100,000 | 900,000 | $ 800,000 |
Reduction in unrecognized tax benefit that is reasonably possible due to a lapse of statute of limitations | $ 300,000 |  |  |
Duration of unrecognized tax benefits | 12 months |  |  |
Other Assets |  |  |  |
Income Tax Examination [Line Items] |  |  |  |
Deferred Tax Assets, Net | $ 14,400,000 | $ 20,700,000 |  |

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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