AFFORDABLE HOUSING PARTNERSHIPS AND OTHER TAX CREDIT INVESTMENTS (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
AFFORDABLE HOUSING PARTNERSHIPS AND OTHER TAX CREDIT INVESTMENTS
Minimum compliance period to fully utilize the tax credits	15 years
Investment in affordable housing partnerships, net	$ 178,652,000	$ 164,776,000
CRA and other tax credit investments	110,100,000	70,200,000
Total unfunded commitments for investments	114,700,000	73,100,000
Affordable housing partnerships and other tax credits	84,800,000	34,200,000	18,700,000
Amortization of investments in affordable housing partnerships and other tax credit investments	75,660,000	27,268,000	18,058,000
Remaining tax credits	$ 193,800,000

Amount of affordable housing partnership and other tax credit investments used during the reporting period.

No definition available.

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- Definition

The amortization related to limited partnership interests in projects of affordable housing for lower income tenants and other investments. The investments in which the Company recorded using the cost method are being amortized using the level-yield method over the life of the related tax credits.

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No definition available.

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- Definition

Investments in limited partnership interests in projects of affordable housing for lower income tenants, which have related tax credits. The investments in which the Company has significant influence or has a limited partnership interest that exceeds 5% are recorded using the equity method of accounting. The remaining investments are recorded using the cost method and are being amortized using the level-yield method over the life of the related tax credits.

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No definition available.

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- Definition

Remaining tax credits related to the investments in limited partnership interests in projects of affordable housing for lower income tenants and other investments.

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No definition available.

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- Definition

Represents the amount of investments in certain limited partnerships that qualify for Community Reinvestment Act (CRA) credits or that qualify for other types of tax credits . The Community Reinvestment Act (CRA) encourages banks to meet the credit needs of their communities for housing and other purposes, particularly in neighborhoods with low or moderate incomes, included in other assets in the consolidated balance sheets.

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No definition available.

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- Definition

Represents the minimum compliance period, to meet regulatory requirements for affordable housing, to fully utilize the tax credits.

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No definition available.

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- Definition

The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 6A

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=SL6742756-110258

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