v3.26.1
COMMON/COLLECTIVE TRUST FUNDS (Details) - Donegal Mutual Insurance Company 401(k) Plan [Member]
12 Months Ended
Dec. 31, 2025
USD ($)
Investment
Dec. 31, 2024
USD ($)
COMMON/COLLECTIVE TRUST FUNDS [Abstract]    
Number of investments in common/collective trust funds (in Investment) | Investment 3  
Unfunded commitments relating to common/collective trust funds | $ $ 0 $ 0