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LOANS HELD FOR INVESTMENT - Additional Information III (Details) - USD ($) | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Revolving loans converted to term loans | $ 0 | $ 0
Accrued interest receivable on loans and investments | 66,109,000 | 71,881,000
Nonaccrual | 96,261,000 | 87,467,000
Florida region [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual | 22,700,000 | 8,600,000
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual | 19,650,000 | 20,514,000
Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual | 21,437,000 | 10,851,000
Commercial Portfolio Segment [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual | 5,591,000 | 1,365,000
Commercial Portfolio Segment [Member] | Florida region [Member] | Commercial and Industrial Sector [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual | 200,000 |
Commercial Portfolio Segment [Member] | Florida region [Member] | Commercial Mortgage Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual | 12,200,000 |
Collateral Pledged [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual commercial mortgage loan | 80,734,000 | 93,919,000
Collateral Pledged [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual commercial mortgage loan | 15,514,000 | 21,804,000
Collateral Pledged [Member] | Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual commercial mortgage loan | 35,976,000 | 46,765,000
Collateral Pledged [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Nonaccrual commercial mortgage loan | $ 5,277,000 | $ 956,000
Collateral Pledged [Member] | Weighted Average [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
LTV Coverage % | 69.00% | 68.00%
Loans and Finance Receivables [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accrued interest receivable on loans and investments | $ 54,700,000 | $ 58,200,000

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