Annual report pursuant to Section 13 and 15(d)

LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Narratives) (Details)

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LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Narratives) (Details) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Loans Held for Investment and Allowance for Credit Losses [Abstract]                    
Accrued interest receivable             $ 10,100,000 $ 8,000,000.0    
Real estate loans for which formal foreclosure proceedings were in process             500,000 600,000    
TDRs             0      
Financing Receivable, Allowance for Credit Loss             29,941,000 25,068,000 $ 21,606,000 $ 23,816,000
Increase (decrease) in allowance             4,900,000 3,500,000    
Provision For Loan Losses Expensed             9,595,000 7,397,000 (2,842,000)  
Net loan charge-offs or (recoveries)             4,722,000 3,935,000 (632,000)  
Net deferred costs             7,800,000 5,100,000    
Transfers from HFI to HFS $ 16,859,000 $ 37,973,000 $ 26,076,000 $ 67,324,000 $ 33,625,000 $ 89,836,000 35,745,000 108,798,000 $ 98,081,000  
Capital City Home Loans [Member]                    
Payments to purchase mortgage loans held for sale             $ 364,800,000 421,700,000    
Third Party [Member]                    
Purchase of real estate secured adjustable rate loans               $ 15,000,000.0