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LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Summary of TDR Modification Type (Details) - Consumer $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) Loan | Sep. 30, 2016 USD ($) Loan | Sep. 30, 2017 USD ($) Loan | Sep. 30, 2016 USD ($) Loan
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan | 0 | 1 | 3 | 41
Post-Modification Outstanding Recorded Investment | $ | $ 0 | $ 519 | $ 2,433 | $ 10,067
Change in Principal Payments and Interest Rates |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan |  | 0 | 2 | 34
Post-Modification Outstanding Recorded Investment | $ |  | $ 0 | $ 1,290 | $ 8,622
Change in Principal Payments |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan |  | 0 | 1 | 4
Post-Modification Outstanding Recorded Investment | $ |  | $ 0 | $ 1,143 | $ 780
Change in Interest Rates |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan |  | 0 | 0 | 2
Post-Modification Outstanding Recorded Investment | $ |  | $ 0 | $ 0 | $ 146
Bankruptcy Discharges |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan |  | 1 | 0 | 1
Post-Modification Outstanding Recorded Investment | $ |  | $ 519 | $ 0 | $ 519
Single family residential mortgage |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan | 0 | 1 | 3 | 41
Post-Modification Outstanding Recorded Investment | $ | $ 0 | $ 519 | $ 2,433 | $ 10,067
Single family residential mortgage | Change in Principal Payments and Interest Rates |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan |  | 0 | 2 | 34
Post-Modification Outstanding Recorded Investment | $ |  | $ 0 | $ 1,290 | $ 8,622
Single family residential mortgage | Change in Principal Payments |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan |  | 0 | 1 | 4
Post-Modification Outstanding Recorded Investment | $ |  | $ 0 | $ 1,143 | $ 780
Single family residential mortgage | Change in Interest Rates |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan |  | 0 | 0 | 2
Post-Modification Outstanding Recorded Investment | $ |  | $ 0 | $ 0 | $ 146
Single family residential mortgage | Bankruptcy Discharges |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Loans | Loan |  | 1 | 0 | 1
Post-Modification Outstanding Recorded Investment | $ |  | $ 519 | $ 0 | $ 519

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524 + Details
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