Represents the number of significant acquisitions completed during the period.

No definition available.

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- Definition

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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

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- Definition

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

+ References

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

-Publisher FASB

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-SubTopic 20

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-Subparagraph (a)

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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

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher FASB

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GOODWILL AND OTHER INTANGIBLES (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014 item	Dec. 31, 2013 item	Dec. 31, 2011 item	Jan. 17, 2014
Goodwill
Number of significant acquisitions completed	1	0	2
Goodwill
Goodwill, Beginning Balance	$ 256,871us-gaap_Goodwill	$ 255,199us-gaap_Goodwill
Goodwill, Ending Balance	264,742us-gaap_Goodwill	256,871us-gaap_Goodwill
Impairment loss on goodwill	0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Beacon Federal
Goodwill
Goodwill acquired		1,672
Acquisition of Bank of America Branches
Goodwill
Goodwill, Beginning Balance				7,900
Goodwill acquired	7,871
Goodwill, Ending Balance				7,900
Operating segment \| Banking
Goodwill
Goodwill, Ending Balance	241,566	233,695
Operating segment \| Insurance
Goodwill
Goodwill, Ending Balance	$ 23,176	$ 23,176