LOANS - Narrative (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) industry_concentration	Dec. 31, 2017 USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of industry segment concentration above threshold limit \| industry_concentration	1
Concentration risk of the loan portfolio (more than)	10.00%
Loans exposure in oil and gas industry	$ 112,600
Exposure in the oil and gas industry specified as percentage of total loans	12.50%
Loans on nonaccrual status	$ 8,920	$ 49,278
Interest that would have been recorded on impaired loans	5,100	3,400
TDRs with payment default that were modified within the previous 12 months	0	18
Related party loans	213	$ 1,800
Oil and gas industry
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans on nonaccrual status	$ 4,300
Percentage of loans on nonaccrual status	3.80%

This line item represents the exposure in the oil and gas industry specified as a percentage of total loans.

No definition available.

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- Definition

This line item represents the loans exposure in the oil and gas industry.

+ References

No definition available.

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- Definition

This line item represents the number of industry segment concentration above threshold limit of the loan portfolio.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

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- Definition

Percentage of nonaccrual financing receivable balance outstanding that is past due.

+ References

No definition available.

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Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

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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.

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No definition available.

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- Definition

Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

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- Definition

For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

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