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GOODWILL AND OTHER INTANGIBLES (Tables) | 9 Months Ended
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Sep. 30, 2023
GOODWILL AND OTHER INTANGIBLES [Abstract] |
Gross Amount and Accumulated Amortization of Other Intangible Assets [Table Text Block] | As of As of September 30, December 31, 2023 2022 (Dollars in thousands) Core deposit intangible: Gross amount $ 87,544 $ 87,544 Accumulated amortization (72,315) (66,644) Net carrying amount $ 15,229 $ 20,900 Remaining amortization period (in years) 6.3 7.0 Purchased credit card relationship intangible: Gross amount $ - $ 3,800 Accumulated amortization - (3,595) Net carrying amount $ - $ 205 Remaining amortization period (in years) - 0.7 Insurance customer relationship intangible: Gross amount $ - $ 1,067 Accumulated amortization - (1,054) Net carrying amount $ - $ 13 Remaining amortization period (in years) - 0.1
Amortization Expense [Table Text Block] | (In thousands) Remaining 2023 $ 1,847 2024 6,416 2025 3,509 2026 872 2027 872 2028 and after 1,713

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