The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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GOODWILL AND OTHER INTANGIBLE ASSETS--Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended					9 Months Ended
	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Feb. 29, 2024	Dec. 31, 2023	Dec. 31, 2021	Aug. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 0	$ 1,800	$ 40		$ 4,200	$ 1,788	$ 4,361
Other Depreciation and Amortization	3,300		3,400			9,700	10,100
Amortization of Mortgage Servicing Rights (MSRs)	$ 900		$ 800			$ 2,600	$ 2,300
Brady Ware Corporate Finance
Finite-Lived Intangible Assets [Line Items]
Goodwill				$ 100
Core deposits
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization method						accelerated basis
Estimated weighted average life (in years)	3 years 6 months					3 years 6 months
Customer lists
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization method						straight-line basis
Finite-Lived Intangible Assets, Remaining Amortization Period								12 years 4 months 24 days		9 years 3 months 18 days	5 years 10 months 24 days
Customer lists \| Summit Funding Group
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	$ 23,200					$ 23,200			$ 25,100
Customer lists \| Bannockburn [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	21,200					21,200			$ 23,900
Customer lists \| Agile Premium Finance
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	$ 2,600					$ 2,600