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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Affordable Housing Fund Investment (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($) limited_partnership | Dec. 31, 2014 USD ($)
Schedule of Equity Method Investments [Line Items] |  |
Number of limited partnerships | limited_partnership | 2 |
Affordable Housing Partnerships |  |
Schedule of Equity Method Investments [Line Items] |  |
Gross investment in limited partnership | $ 9,200 | $ 9,000
Original investment in limited partnership | 9,500 | 9,500
Unfunded amount in limited partnership | $ 439 |
Compliance period to fully utilize tax credits | 15 years |
Investment amortization | $ 727 | 802
Affordable Housing Partnerships | Investment Tax Credit Carryforward |  |
Schedule of Equity Method Investments [Line Items] |  |
Future federal and state tax credit amounts to be generated | 3,100 | 3,800
Unused tax credit carryforward | $ 0 | $ 0
Affordable Housing Partnerships | Minimum |  |
Schedule of Equity Method Investments [Line Items] |  |
Ownership percentage of limited partnership | 8.00% |
Affordable Housing Partnerships | Maximum |  |
Schedule of Equity Method Investments [Line Items] |  |
Ownership percentage of limited partnership | 14.00% |

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- Definition Amortization Method Qualified Affordable Housing Project Investments, Gross + References No definition available. + Details
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- Definition Amount of amortization expense of investment in qualified affordable housing projects. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 740 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=49127445&loc=SL49122993-202985 + Details
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- Definition Amount of commitment or contingent commitments to qualified affordable housing project investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 740 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=49127445&loc=SL49122993-202985 + Details
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Carryforwards -URI http://asc.fasb.org/extlink&oid=6506874 + Details
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