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INTANGIBLE ASSETS (Narrative) (Details) - USD ($) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Apr. 30, 2019 | Mar. 31, 2020 | Mar. 31, 2019
Finite-Lived Intangible Assets [Line Items] |  |  |
Impairment charges for goodwill | $ 0 | $ 0 |
Intangible assets, amortization expense |  | $ 4,401 | $ 4,218
Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) |  | 4 years |
Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) |  | 10 years |
Core Deposits | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) |  | 4 years |
Core Deposits | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) |  | 10 years |
Other Amortizable Intangibles | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, amortization period (years) |  | 4 years |
Other Amortizable Intangibles | Maximum |  |  |
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 |  | $ 4,400 | $ 4,200

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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=118932676&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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