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Other Intangibles - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Sep. 01, 2019
Business Acquisition [Line Items] |  |  |  |
Intangible asset amortization | $ 5,994 | $ 6,719 | $ 5,647 |
Minimum |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Useful life of core deposit intangibles and other intangibles | 2 years |  |  |
Maximum |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Useful life of core deposit intangibles and other intangibles | 10 years |  |  |
MBT |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Core deposit intangible |  |  |  | $ 16,527

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=116868840&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472 + Details
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