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INTANGIBLE ASSETS (Narrative) (Details) - USD ($) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Feb. 01, 2019 | Mar. 31, 2019 | Mar. 31, 2018
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill, written off related to sale of business unit |  | $ 864 |
Intangible assets, amortization expense |  | 4,218 | $ 3,181
Maximum | Access National Bank |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) | 10 years |  |
Core Deposits and Other Intangible Assets |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization expense |  | $ 4,200 | $ 3,200
Core Deposits and Other Intangible Assets | Minimum | Access National Bank |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) |  | 1 year |
Core Deposits and Other Intangible Assets | Maximum | Access National Bank |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) |  | 10 years |
Other amortizable intangibles | Minimum | Access National Bank |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) |  | 5 years |
Other amortizable intangibles | Maximum | Access National Bank |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) |  | 10 years |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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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 Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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