GOODWILL (Schedule of Goodwill) (Details) (USD $)	12 Months Ended	3 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
Goodwill [Roll Forward]
Balance, beginning of year	$ 0us-gaap_Goodwill	$ 125,267,000us-gaap_Goodwill
Goodwill impairment	0us-gaap_GoodwillImpairmentLoss	(107,267,000)us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Balance, end of year	0us-gaap_Goodwill	0us-gaap_Goodwill	125,267,000us-gaap_Goodwill	0us-gaap_Goodwill
Association Bank Services [Member]
Goodwill [Roll Forward]
Goodwill allocated to sale transaction		$ (18,000,000)		$ (18,000,000)

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 45

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-Subparagraph (b)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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