SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Affordable Housing Entities (Narrative) (Details) - USD ($) |
12 Months Ended | |
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Dec. 31, 2019 |
Dec. 31, 2018 |
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| Affordable Housing Projects [Abstract] | ||
| Affordable housing projects, recognized amortization | $ 1,900,000 | $ 922,000 |
| Affordable housing projects, tax credits | 2,900,000 | 1,100,000 |
| Affordable housing projects, investment amount | 29,600,000 | 10,800,000 |
| Affordable housing projects, liability | $ 12,000,000.0 | $ 9,900,000 |
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- Definition Affordable Housing Projects [Abstract] No definition available.
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- Definition Amount of obligation related to Affordable Housing Program (AHP) assessments required by the Federal Home Loan Bank Act of 1932. No definition available.
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- Definition Amount of affordable housing tax credits and other tax benefits recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of investment in qualified affordable housing projects. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of amortization expense of investment in qualified affordable housing projects. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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