GOODWILL AND CORE DEPOSIT INTANGIBLES - Narrative (Details) - USD ($)	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 346,000,000		$ 346,000,000
Goodwill impairment	$ 0	$ 0

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details