DERIVATIVES - Net Gains (Losses) Relating to the Cash Flow Derivative Instruments (Details) - Derivative designated as a cash flow hedge - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Net gains (losses) recorded in accumulated other comprehensive income and the Consolidated Statements of Income
Interest rate contracts, Amount of gain (loss) recognized in OCI (Effective Portion)	$ (1,597)	$ 2,827
Interest rate contracts, Amount of gain (loss) reclassified from OCI to interest expense	556	(65)
Interest rate contracts, Amount of loss recognized in other non-interest income (Ineffective Portion)	$ 0	$ 0

The net gain (loss) during the reporting period due to ineffectiveness in non interest rate cash flow hedges. Recognized in earnings.

No definition available.

+ Details

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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.

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- Definition

The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959

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- Definition

Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959

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