LOAN LOSS ALLOWANCE - Narrative (Details) $ in Millions	3 Months Ended
Mar. 31, 2018 USD ($) grade
Credit quality information
Allowance for losses on acquired loans under Subtopic ASC 310-30 \| $	$ 6.6
Acquired Loans
Credit quality information
Number of grades in internal loan rating system (grade)	11
Residential Mortgages \| Mortgages
Credit quality information
Number of grades in internal loan rating system (grade)	3
Residential Mortgages \| Mortgages \| Pass \| Maximum
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	59 days
Residential Mortgages \| Mortgages \| Special mention \| Minimum
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	60 days
Residential Mortgages \| Mortgages \| Special mention \| Maximum
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	89 days
Residential Mortgages \| Mortgages \| Substandard \| Minimum
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	90 days
Consumer Loans \| Other
Credit quality information
Number of grades in internal loan rating system (grade)	2
Consumer Loans \| Performing \| Maximum \| Other
Credit quality information
Period within which loans are current, based on which risk rating is assigned (in days)	119 days
Consumer Loans \| Nonperforming \| Minimum \| Other
Credit quality information
Delinquency period of loans based on which risk rating is assigned to loans (in days)	120 days

Represents the current period of loans based on which risk rating is assigned to loans.

No definition available.

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- Definition

Represents the delinquency period of loans based on which risk rating is assigned to loans.

+ References

No definition available.

+ Details

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- Definition

The number of grades in the reporting entity's internal loan rating system.

+ References

No definition available.

+ Details

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- Definition

Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82894507&loc=d3e13503-111538

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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