v3.26.1
STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS - Donegal Mutual Insurance Company 401(k) Plan [Member] - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Investments      
Investments $ 215,196,056 $ 198,201,529  
Net Assets Available for Benefits 215,196,056 198,201,529 $ 173,016,393
Common/collective Trust Funds [Member]      
Investments      
Investments [1] 19,831,490 18,715,611  
Registered Investment Companies [Member]      
Investments      
Investments 185,024,573 170,278,611  
Employer Securities [Member]      
Investments      
Investments $ 10,339,993 $ 9,207,307  
[1] Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Statement of Net Assets Available for Benefits.