XML 105 R93.htm IDEA: XBRL DOCUMENT v3.25.0.1
Borrowings - Narrative (Details)
 1 Months Ended 12 Months Ended
Jun. 30, 2023
Aug. 01, 2022
USD ($)
Oct. 29, 2021
USD ($)
extension_option
Oct. 31, 2020
USD ($)
Feb. 29, 2020
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Oct. 28, 2021
USD ($)
Debt Instrument [Line Items]                
Line of credit outstanding, long-term           $ 0 $ 30,000,000  
Overnight repurchase agreements with depositors                
Debt Instrument [Line Items]                
Daily average interest rate           2.21% 0.24%  
Line of credit                
Debt Instrument [Line Items]                
Maximum borrowing capacity           $ 145,000,000 $ 140,000,000  
Line of credit outstanding, short-term           0 0  
Amount held on deposit           250,000    
Secured repurchase line of credit                
Debt Instrument [Line Items]                
Maximum borrowing capacity           75,000,000 75,000,000  
FHLB advances                
Debt Instrument [Line Items]                
Subordinated indebtedness, net           6,474,000    
Line of credit | Revolving credit loans                
Debt Instrument [Line Items]                
Maximum borrowing capacity     $ 100,000,000         $ 50,000,000.0
Incremental revolving loan maximum     $ 50,000,000.0          
Debt instrument, option to extend, term     364 days          
Number of options to extend term | extension_option     2          
Line of credit | Revolving credit loans | Secured Overnight Financing Rate (SOFR)                
Debt Instrument [Line Items]                
Interest Rate     3.35%          
Subordinated indebtedness, net                
Debt Instrument [Line Items]                
Interest Rate       4.50% 4.25%      
Interest Rate       4.32%        
Subordinated indebtedness, net           194,279,000 $ 201,765,000  
Principal amount       $ 80,000,000 $ 70,000,000      
Repurchased amount of notes           5,000,000    
Subordinated indebtedness, net | BTH                
Debt Instrument [Line Items]                
Subordinated indebtedness, net   $ 37,600,000       34,700,000    
Debt instrument, floor rate   3.875%            
Debt instrument, redemption period, term threshold   5 years            
Debt instrument, redemption notice period   10 days            
Subordinated indebtedness, net | Secured Overnight Financing Rate (SOFR)                
Debt Instrument [Line Items]                
Interest Rate 3.08%              
Subordinated indebtedness, net | LIBOR                
Debt Instrument [Line Items]                
Interest Rate         2.82%      
Junior Subordinated Debt                
Debt Instrument [Line Items]                
Subordinated indebtedness, net           16,356,000    
Remaining purchase discount           $ 1,016,000    
Junior Subordinated Debt | BTH                
Debt Instrument [Line Items]                
Subordinated indebtedness, net   $ 7,200,000            
Debt instrument, redemption price, percentage   100.00%            
Minimum | FHLB advances                
Debt Instrument [Line Items]                
Interest Rate           1.99% 1.99%  
Minimum | Line of credit | Revolving credit loans                
Debt Instrument [Line Items]                
Written request prior to maturity, term     30 days          
Minimum | Subordinated indebtedness, net | BTH                
Debt Instrument [Line Items]                
Interest Rate   6.125%            
Minimum | Subordinated indebtedness, net | Prime Rate | BTH                
Debt Instrument [Line Items]                
Interest Rate   0.50%            
Maximum | FHLB advances                
Debt Instrument [Line Items]                
Interest Rate           4.57% 4.57%  
Maximum | Line of credit | Revolving credit loans                
Debt Instrument [Line Items]                
Written request prior to maturity, term     60 days          
Maximum | Subordinated indebtedness, net | BTH                
Debt Instrument [Line Items]                
Interest Rate   6.375%            
Maximum | Subordinated indebtedness, net | Prime Rate | BTH                
Debt Instrument [Line Items]                
Interest Rate   1.75%            
FHLB                
Debt Instrument [Line Items]                
Net amounts available under the blanket floating lien           $ 2,010,000,000.00 $ 1,290,000,000  
Federal Reserve Bank of Dallas | Line of credit                
Debt Instrument [Line Items]                
Current borrowing capacity           1,420,000,000 1,230,000,000  
Total Loans Receivable           1,690,000,000 1,760,000,000  
Line of credit outstanding, long-term           $ 0 $ 0