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LOANS AND ALLOWANCE FOR LOAN LOSSES (Loan Aging Analysis by Portfolio Segment) (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 USD ($) loan | Mar. 31, 2018 USD ($) loan | Dec. 31, 2018 USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Number of TDRs | loan | 0 | 0 |
Total Past Due | $ 16,562 |  | $ 17,812
Current | 3,025,880 |  | 3,008,410
Total Loans Outstanding | 3,042,442 | $ 2,789,148 | 3,026,222
Loans 90 Days Past Due and Accruing | 14 |  | 14
Non-Accrual Loans | 10,153 |  | 10,530
Residential Real Estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 6,895 |  | 9,866
Current | 1,010,547 |  | 983,000
Total Loans Outstanding | 1,017,442 | 860,533 | 992,866
Loans 90 Days Past Due and Accruing | 0 |  | 0
Non-Accrual Loans | 5,415 |  | 5,492
Commercial Real Estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 3,669 |  | 3,271
Current | 1,254,805 |  | 1,266,262
Total Loans Outstanding | 1,258,474 | 1,169,533 | 1,269,533
Loans 90 Days Past Due and Accruing | 0 |  | 0
Non-Accrual Loans | 975 |  | 1,380
Commercial |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,990 |  | 968
Current | 388,992 |  | 380,812
Total Loans Outstanding | 390,982 | 378,015 | 381,780
Loans 90 Days Past Due and Accruing | 0 |  | 0
Non-Accrual Loans | 802 |  | 1,279
Home Equity |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 2,997 |  | 2,990
Current | 320,972 |  | 324,773
Total Loans Outstanding | 323,969 | 320,642 | 327,763
Loans 90 Days Past Due and Accruing | 0 |  | 0
Non-Accrual Loans | 2,467 |  | 1,846
Consumer |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 428 |  | 111
Current | 20,305 |  | 20,513
Total Loans Outstanding | 20,733 | 18,011 | 20,624
Loans 90 Days Past Due and Accruing | 14 |  | 14
Non-Accrual Loans | 9 |  | 15
HPFC Portfolio Segment |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 583 |  | 606
Current | 30,259 |  | 33,050
Total Loans Outstanding | 30,842 | $ 42,414 | 33,656
Loans 90 Days Past Due and Accruing | 0 |  | 0
Non-Accrual Loans | 485 |  | 518
30-59 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 5,783 |  | 6,218
30-59 Days Past Due | Residential Real Estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 2,135 |  | 3,300
30-59 Days Past Due | Commercial Real Estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,387 |  | 1,794
30-59 Days Past Due | Commercial |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,196 |  | 150
30-59 Days Past Due | Home Equity |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,017 |  | 907
30-59 Days Past Due | Consumer |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 43 |  | 67
30-59 Days Past Due | HPFC Portfolio Segment |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 5 |  | 0
60-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 3,582 |  | 3,239
60-89 Days Past Due | Residential Real Estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 491 |  | 2,046
60-89 Days Past Due | Commercial Real Estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,885 |  | 369
60-89 Days Past Due | Commercial |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 470 |  | 19
60-89 Days Past Due | Home Equity |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 192 |  | 607
60-89 Days Past Due | Consumer |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 362 |  | 15
60-89 Days Past Due | HPFC Portfolio Segment |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 182 |  | 183
Greater than 90 Days |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 7,197 |  | 8,355
Greater than 90 Days | Residential Real Estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 4,269 |  | 4,520
Greater than 90 Days | Commercial Real Estate |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 397 |  | 1,108
Greater than 90 Days | Commercial |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 324 |  | 799
Greater than 90 Days | Home Equity |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 1,788 |  | 1,476
Greater than 90 Days | Consumer |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 23 |  | 29
Greater than 90 Days | HPFC Portfolio Segment |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | $ 396 |  | $ 423

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