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LOANS AND LEASES (Schedule of Loans Outstanding, by Type of Loan) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Total loans | $ 5,365,729 | $ 5,285,246
Loans and Finance Receivables, Gross [Member] | Credit Concentration Risk [Member] |  |
Total loans (in percent) | 100.00% | 100.00%
Unallocated Financing Receivables [Member] |  |
Total loans | $ 443 | $ 304
Unallocated Financing Receivables [Member] | Loans and Finance Receivables, Gross [Member] | Credit Concentration Risk [Member] |  |
Total loans (in percent) | 0.01% | 0.01%
Primary Residential Mortgage [Member] | Residential Portfolio Segment [Member] |  |
Total loans | $ 544,655 | $ 525,756
Primary Residential Mortgage [Member] | Residential Portfolio Segment [Member] | Loans and Finance Receivables, Gross [Member] | Credit Concentration Risk [Member] |  |
Total loans (in percent) | 10.15% | 9.95%
Multifamily Property [Member] | Residential Portfolio Segment [Member] |  |
Total loans | $ 1,871,387 | $ 1,863,915
Multifamily Property [Member] | Residential Portfolio Segment [Member] | Loans and Finance Receivables, Gross [Member] | Credit Concentration Risk [Member] |  |
Total loans (in percent) | 34.88% | 35.27%
Commercial Mortgage [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Total loans | $ 613,911 | $ 624,625
Commercial Mortgage [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans and Finance Receivables, Gross [Member] | Credit Concentration Risk [Member] |  |
Total loans (in percent) | 11.44% | 11.82%
Commercial Loans Including Equipment Financing [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Total loans | $ 2,246,899 | $ 2,194,094
Commercial Loans Including Equipment Financing [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans and Finance Receivables, Gross [Member] | Credit Concentration Risk [Member] |  |
Total loans (in percent) | 41.87% | 41.51%
Construction [Member] | Commercial Portfolio Segment [Member] |  |
Total loans | $ 6,138 | $ 4,042
Construction [Member] | Commercial Portfolio Segment [Member] | Loans and Finance Receivables, Gross [Member] | Credit Concentration Risk [Member] |  |
Total loans (in percent) | 0.12% | 0.07%
Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member] |  |
Total loans | $ 33,294 | $ 34,496
Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member] | Loans and Finance Receivables, Gross [Member] | Credit Concentration Risk [Member] |  |
Total loans (in percent) | 0.62% | 0.65%
Consumer Loans, Including Home Equity Loans [Member] | Consumer and Other Loans [Member] |  |
Total loans | $ 49,002 | $ 38,014
Consumer Loans, Including Home Equity Loans [Member] | Consumer and Other Loans [Member] | Loans and Finance Receivables, Gross [Member] | Credit Concentration Risk [Member] |  |
Total loans (in percent) | 0.91% | 0.72%

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