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Fair Value Measurements - Schedule of Assets with Unobservable Inputs (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Nonrecurring assets, loss | $ (148) | $ 1,942 | $ 457
Loans measured for impairment |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Nonrecurring assets, loss | (952) | 352 | 270
Other real estate owned |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Nonrecurring assets, loss | 0 | 904 | 187
Other operating expense - impairment on equity method investment |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Nonrecurring assets, loss | 804 | 686 | $ 0
Fair Value, Measurements, Nonrecurring |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans measured for impairment | 848 | 7,988 |
Other real estate owned |  | 3,927 |
Other assets - equity method investment | 709 | 2,292 |
Total fair value assets | 1,557 | 14,207 |
Fair Value, Measurements, Nonrecurring | Level 1 inputs |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans measured for impairment | 0 | 0 |
Other real estate owned |  | 0 |
Other assets - equity method investment | 0 | 0 |
Total fair value assets | 0 | 0 |
Fair Value, Measurements, Nonrecurring | Level 2 inputs |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans measured for impairment | 0 | 0 |
Other real estate owned |  | 0 |
Other assets - equity method investment | 0 | 0 |
Total fair value assets | 0 | 0 |
Fair Value, Measurements, Nonrecurring | Level 3 inputs |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Loans measured for impairment | 848 | 7,988 |
Other real estate owned |  | 3,927 |
Other assets - equity method investment | 709 | 2,292 |
Total fair value assets | $ 1,557 | $ 14,207 |

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Fair value portion of investments accounted under the equity method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66022186&loc=d3e32014-111567 + Details
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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 + Details
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