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LEASES - Narrative (Details) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 USD ($) branch | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items] |  |  |  |
Impairment of ROU assets |  | $ 3,800 |  |
Rental income |  | 1,300 | $ 1,000 | $ 1,800
Finance lease obligations |  | $ 239 | $ 83 |
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] |  | Accrued expenses and other liabilities | Accrued expenses and other liabilities |
Number of branches under sale-leaseback transactions | branch | 1 |  |  |
Sale leaseback transaction, net book value | $ 4,200 |  |  |
Gain on sale-leaseback of branch | $ 841 | $ 841 | $ 0 | 0
Lessor, operating lease, term of contract | 5 years |  |  |
ROU assets obtained in exchange for lease liabilities | $ 811 | $ 26,413 | $ 3,289 | $ 5,332
Minimum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Remaining lease terms |  | 1 month |  |
Available lease renewal terms |  | 3 years |  |
Maximum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Remaining lease terms |  | 17 years |  |
Available lease renewal terms |  | 5 years |  |

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980 + Details
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