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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 | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Segment Reporting, Reconciling Item for Non Interest Revenues from Segment to Consolidated [Line Items] |  |  |  |
Operating noninterest revenues | $ 76,197 | $ 67,586 | $ 220,872 | $ 147,065
Loss on sales of investment securities | (255) | 0 | (487) | (52,329)
Unrealized (loss) gain on equity securities | 101 | (49) | 984 | (99)
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 | 77,526 | 68,717 | 223,940 | 202,695
Inter segment elimination |  |  |  |
Segment Reporting, Reconciling Item for Non Interest Revenues from Segment to Consolidated [Line Items] |  |  |  |
Operating noninterest revenues | $ (1,175) | $ (1,082) | $ (3,565) | $ (3,444)

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- Definition 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). + References 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 -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(d)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-4 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481303/470-50-40-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481303/470-50-40-4 + Details
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