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SEGMENT INFORMATION - Reconciliation of total segment operating noninterest revenues to total consolidated noninterest revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting, Reconciling Item for Non Interest Revenues from Segment to Consolidated [Line Items]
Operating noninterest revenues	$ 74,390	$ 65,984	$ 144,675	$ 79,479
Unrealized (loss) gain on equity securities	867	(50)	883	(50)
Loss on sales of investment securities	(232)	0	(232)	(52,329)
Gain on debt extinguishment	0	0	0	(242)
Operating Segment
Segment Reporting, Reconciling Item for Non Interest Revenues from Segment to Consolidated [Line Items]
Operating noninterest revenues	74,896	67,161	146,414	133,978
Inter segment elimination
Segment Reporting, Reconciling Item for Non Interest Revenues from Segment to Consolidated [Line Items]
Operating noninterest revenues	$ (1,141)	$ (1,127)	$ (2,390)	$ (2,362)

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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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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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-Topic 942
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