v3.25.4
Summary of Significant Accounting Policies (Details)
12 Months Ended
Sep. 09, 2025
USD ($)
Dec. 31, 2025
USD ($)
Segment
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Summary of Significant Accounting Policies [Abstract]        
Number of operating segments (in Segment) | Segment   3    
Premiums and losses related to certain products   67.00% 65.30% 66.20%
Premiums ceded to other party (in Dollars) $ 6,000,000 $ 400,054,828 $ 418,469,480 $ 396,206,492
Tax benefit for tax deductions related to option exercises (in Dollars)   $ 1,271,177 $ 370,644 $ 139,135
Minimum percentage of class A common stock declared dividend excess over class B dividend   10.00%    
Atlantic States [Member]        
Summary of Significant Accounting Policies [Abstract]        
Percentage of share in results of pooled business subsidiary   80.00%    
Donegal Mutual Insurance Company [Member]        
Summary of Significant Accounting Policies [Abstract]        
Voting power percentage of outstanding common stock   70.00%    
Premiums and losses related to certain products   100.00%    
Class A Common Stock [Member] | Donegal Mutual Insurance Company [Member]        
Summary of Significant Accounting Policies [Abstract]        
Stock ownership percentage held by major shareholder   44.00%    
Class B Common Stock [Member] | Donegal Mutual Insurance Company [Member]        
Summary of Significant Accounting Policies [Abstract]        
Stock ownership percentage held by major shareholder   85.00%