v3.26.1
Subordinated Debt (Details) - USD ($)
 1 Months Ended 9 Months Ended 12 Months Ended
May 31, 2021
Aug. 31, 2014
Oct. 31, 2013
Mar. 31, 2026
Jun. 30, 2025
Feb. 28, 2022
Business Acquisition [Line Items]            
Subordinated debt       $ 23,248,000 $ 23,208,000  
Investment, carrying value       591,700,000 538,200,000  
Prepaid Expenses and Other Current Assets            
Business Acquisition [Line Items]            
Investment, face amount       505,000    
Investment, carrying value       $ 473,000 471,000  
Trust Preferred Securities            
Business Acquisition [Line Items]            
Number of years after securities became redeemable       5 years    
Interest rate (as a percent)       6.69%    
Subordinated debt       $ 7,200,000 7,200,000  
Ozarks Legacy Community Financial, Inc.            
Business Acquisition [Line Items]            
Interest rate (as a percent)       6.39%    
Floating rate junior subordinated debt securities     $ 3,100,000      
Ozarks Legacy Community Financial, Inc. | Reported Value Measurement            
Business Acquisition [Line Items]            
Floating rate junior subordinated debt securities       $ 2,800,000 2,800,000  
Peoples Service Company, Inc.            
Business Acquisition [Line Items]            
Interest rate (as a percent)       5.74%    
Floating rate junior subordinated debt securities   $ 6,500,000        
Peoples Service Company, Inc. | Reported Value Measurement            
Business Acquisition [Line Items]            
Floating rate junior subordinated debt securities       $ 5,700,000 5,600,000  
Fortune | Subordinated notes Issued in May 2021            
Business Acquisition [Line Items]            
Interest rate (as a percent) 4.50%          
Subordinated debt       $ 7,500,000 $ 7,500,000  
Instrument face amount           $ 7,500,000
Variable rate (as a percent) 3.77%          
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] us-gaap:SecuredOvernightFinancingRateSofrMember