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LOAN REPURCHASE RESERVE - Summary of Activities in Reserve for Loss Reimbursements on Sold Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Loss Contingency Accrual [Roll Forward] |  |  |
Balance at beginning of year | $ 4,348 |  |
Balance at end of year | 2,989 | $ 4,348 |
Representations and Warranties Obligations and Corporate Guarantees |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |
Balance at beginning of year | 4,348 | 5,515 | $ 6,201
Subsequent change in the reserve | (1,004) | (948) | (686)
Utilization of reserve for loan repurchases | (355) | (219) | 0
Balance at end of year | $ 2,989 | $ 4,348 | $ 5,515

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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349 + Details
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- Definition Amount of cash outflow reducing loss contingency liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
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