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LOANS (Schedule of Loan Balances by Portfolio Class) (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017
Total loans | $ 3,795,230 | $ 3,702,532
Net deferred costs | 3,360 | 1,908
Total loans including net deferred costs | $ 3,798,590 | $ 3,704,440
Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 100.00% | 100.00%
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member] |  |
Total loans | $ 592,283 | $ 605,569
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 15.61% | 16.35%
Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member] |  |
Total loans | $ 59,929 | $ 67,497
Total loans including net deferred costs | $ 59,930 | $ 67,497
Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 1.58% | 1.82%
Residential Portfolio Segment [Member] | Multifamily Property [Member] |  |
Total loans | $ 1,285,816 | $ 1,388,958
Total loans including net deferred costs | $ 1,285,816 | $ 1,388,958
Residential Portfolio Segment [Member] | Multifamily Property [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 33.88% | 37.51%
Residential Portfolio Segment [Member] | Junior Lien [Member] |  |
Total loans | $ 7,531 | $ 7,073
Residential Portfolio Segment [Member] | Junior Lien [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 0.20% | 0.19%
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member] |  |
Total loans | $ 249,170 | $ 253,492
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 6.57% | 6.85%
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member] |  |
Total loans | $ 901,820 | $ 874,098
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 23.76% | 23.61%
Commercial Portfolio Segment [Member] | Construction Loans [Member] |  |
Total loans | $ 88 | $ 92
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) |  | 0.01%
Consumer and Other Loans [Member] |  |
Total loans | $ 67,489 | $ 99,247
Consumer and Other Loans [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 1.78% | 2.68%
Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member] |  |
Total loans | $ 479,763 | $ 316,294
Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 12.64% | 8.54%
Lease Financing [Member] |  |
Total loans | $ 151,189 | $ 90,052
Lease Financing [Member] | Commercial Portfolio Segment [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) | 3.98% | 2.43%
Agricultural Sector [Member] |  |
Total loans | $ 152 | $ 160
Agricultural Sector [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member] |  |
Total loans (in percent) |  | 0.01%

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