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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of TDR Modification Type (Details) - Commercial $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) loan | Sep. 30, 2018 USD ($) loan | Sep. 30, 2019 USD ($) loan | Sep. 30, 2018 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loan | 0 | 0 | 12 | 2
Post-Modification Outstanding Recorded Investment | $ | $ 0 | $ 0 | $ 15,561 | $ 163
Change in Principal Payments and Interest Rates |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loan | 0 | 0 | 12 | 0
Post-Modification Outstanding Recorded Investment | $ | $ 0 | $ 0 | $ 15,561 | $ 0
Change in Principal Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loan | 0 | 0 | 0 | 2
Post-Modification Outstanding Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 163
Commercial and industrial |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loan | 0 | 0 | 10 | 2
Post-Modification Outstanding Recorded Investment | $ | $ 0 | $ 0 | $ 14,692 | $ 163
Commercial and industrial | Change in Principal Payments and Interest Rates |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loan |  |  | 10 | 0
Post-Modification Outstanding Recorded Investment | $ |  |  | $ 14,692 | $ 0
Commercial and industrial | Change in Principal Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loan |  |  | 0 | 2
Post-Modification Outstanding Recorded Investment | $ |  |  | $ 0 | $ 163
SBA |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loan | 0 |  | 2 |
Post-Modification Outstanding Recorded Investment | $ | $ 0 |  | $ 869 |
SBA | Change in Principal Payments and Interest Rates |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loan |  |  | 2 |
Post-Modification Outstanding Recorded Investment | $ |  |  | $ 869 |
SBA | Change in Principal Payments |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | loan |  |  | 0 |
Post-Modification Outstanding Recorded Investment | $ |  |  | $ 0 |

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
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