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LOANS HELD FOR INVESTMENT, NET - Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total Loans | $ 10,566,831 | $ 9,244,661 |  |
Allowance for credit losses | 83,507 | 83,853 | $ 41,461 | $ 28,441
Commercial real estate ("CRE") |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total Loans | 4,457,630 | 3,945,948 |  |
Allowance for credit losses | 27,329 | 29,166 | 9,059 | 3,900
Acquisition, development, and construction |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total Loans | 229,663 | 322,628 |  |
Allowance for credit losses | 1,723 | 4,857 | 1,993 | 1,244
Commercial and Industrial ("C&I") Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total Loans | 1,071,712 | 933,559 |  |
Allowance for credit losses | 39,853 | 35,331 | 12,737 | 12,870
Total real estate loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total Loans | 9,487,440 | 8,294,204 |  |
Allowance for credit losses | 43,381 | 47,771 | $ 28,712 | $ 15,555
Real Estate Collateral Dependent | Commercial real estate ("CRE") |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total Loans | 7,391 | 3,837 |  |
Allowance for credit losses | 1,297 | 600 |  |
Real Estate Collateral Dependent | Acquisition, development, and construction |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total Loans | 657 |  |  |
Real Estate Collateral Dependent | Commercial and Industrial ("C&I") Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total Loans | 949 | 348 |  |
Real Estate Collateral Dependent | Total real estate loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total Loans | 8,997 | 4,185 |  |
Allowance for credit losses | $ 1,297 | $ 600 |  |

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
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