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DERIVATIVES (Cash flow hedge accounting) (Details) - Derivatives designated as hedges - Interest rate swaps and caps related to client deposits and borrowings - Cash flow hedge - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI, net of tax | $ 656 | $ 4,702 | $ 4,935 | $ 4,007
Amount of gain (loss) reclassified from OCI into income | $ 1,262 | $ 1,218 | $ 2,513 | $ 2,453
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] | Licensing Fees | Licensing Fees | Licensing Fees | Licensing Fees

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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- Definition Indicates line item in statement of income or comprehensive income that includes gain (loss) from effective portion of derivative instrument reclassified from accumulated other comprehensive income (AOCI) into income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4D -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4D + Details
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