Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) - Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) (Details) - Donegal Mutual Insurance Company 401(k) Plan [Member]
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12 Months Ended |
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Dec. 31, 2025
USD ($)
shares
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
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| Total assets |
$ 215,196,056
|
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| Common/Collective Trust Funds [Member] |
|
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
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| Current value |
19,831,490
|
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| Registered Investment Companies [Member] |
|
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
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| Current value |
185,024,573
|
|
| Employer Securities [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
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| Current value |
$ 10,339,993
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| Investment, Identifier [Axis]: American Funds New Perspective Fund R6 [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
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| Identity of issue, borrower, lessor, or similar party |
American Funds New Perspective Fund R6 [Member]
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| Number of units (in Shares) | shares |
96,993
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 6,854,502
|
|
| Investment, Identifier [Axis]: Baron Asset Fund R6 [Member] |
|
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
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| Identity of issue, borrower, lessor, or similar party |
Baron Asset Fund R6 [Member]
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|
| Number of units (in Shares) | shares |
36,902
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 3,542,235
|
|
| Investment, Identifier [Axis]: Columbia Trust Contrarian Core 1 [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
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| Identity of issue, borrower, lessor, or similar party |
Columbia Trust Contrarian Core 1 [Member]
|
|
| Number of units (in Shares) | shares |
174,116
|
[1] |
| Description of investment |
Common/Collective Trust Funds [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 6,337,830
|
|
| Investment, Identifier [Axis]: Dodge & Cox Inc X [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
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| Identity of issue, borrower, lessor, or similar party |
Dodge & Cox Inc X [Member]
|
|
| Number of units (in Shares) | shares |
441,184
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 5,673,622
|
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| Investment, Identifier [Axis]: Donegal Group Inc. Shares of Class A Common Stock [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
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| Party-in-interest |
true
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[3] |
| Identity of issue, borrower, lessor, or similar party |
Donegal Group Inc. [Member]
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[3] |
| Number of units (in Shares) | shares |
471,167
|
[1],[3] |
| Description of investment |
Class A Donegal Group Inc. Common Stock [Member]
|
[1],[3] |
| Participation status |
Participant-directed Investments [Member]
|
[2],[3] |
| Current value |
$ 9,413,915
|
[3] |
| Investment, Identifier [Axis]: Donegal Group Inc. Shares of Class B Common Stock [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
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| Party-in-interest |
true
|
[3] |
| Identity of issue, borrower, lessor, or similar party |
Donegal Group Inc. [Member]
|
[3] |
| Number of units (in Shares) | shares |
52,350
|
[1],[3] |
| Description of investment |
Class B Donegal Group Inc. Common Stock [Member]
|
[1],[3] |
| Participation status |
Participant-directed Investments [Member]
|
[2],[3] |
| Current value |
$ 926,078
|
[3] |
| Investment, Identifier [Axis]: Fidelity 500 Index Instl Prem [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
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| Identity of issue, borrower, lessor, or similar party |
Fidelity 500 Index Instl Prem [Member]
|
|
| Number of units (in Shares) | shares |
97,511
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 23,180,204
|
|
| Investment, Identifier [Axis]: Fidelity Advisor Equity Growth Z [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
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| Identity of issue, borrower, lessor, or similar party |
Fidelity Advisor Equity Growth Z [Member]
|
|
| Number of units (in Shares) | shares |
769,937
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 20,872,990
|
|
| Investment, Identifier [Axis]: Fidelity US Bond Index [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
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| Identity of issue, borrower, lessor, or similar party |
Fidelity US Bond Index [Member]
|
|
| Number of units (in Shares) | shares |
276,337
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 2,918,120
|
|
| Investment, Identifier [Axis]: Galliard Stable Return C [Member] |
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| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Galliard Stable Return C [Member]
|
|
| Number of units (in Shares) | shares |
22,952
|
[1] |
| Description of investment |
Common/Collective Trust Funds [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 1,454,250
|
|
| Investment, Identifier [Axis]: MFS International Diversification R6 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
MFS International Diversification R6 [Member]
|
|
| Number of units (in Shares) | shares |
194,605
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 5,406,123
|
|
| Investment, Identifier [Axis]: Neuberger & Berman Genesis R6 [Member] |
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|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Neuberger & Berman Genesis R6 [Member]
|
|
| Number of units (in Shares) | shares |
82,900
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 4,455,053
|
|
| Investment, Identifier [Axis]: Putnam Large Cap Value Trust CL-I [Member] |
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|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Putnam Large Cap Value Trust CL-I [Member]
|
|
| Number of units (in Shares) | shares |
459,519
|
[1] |
| Description of investment |
Common/Collective Trust Funds [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 12,039,410
|
|
| Investment, Identifier [Axis]: T. Rowe Price Capital Appreciation Fund [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
T. Rowe Price Capital Appreciation Fund [Member]
|
|
| Number of units (in Shares) | shares |
172,666
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 6,169,354
|
|
| Investment, Identifier [Axis]: T. Rowe Price Mid Cap Value Fund [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
T. Rowe Price Mid Cap Value Fund [Member]
|
|
| Number of units (in Shares) | shares |
210,502
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 6,750,787
|
|
| Investment, Identifier [Axis]: T. Rowe Price Small Cap Stock Fund [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
T. Rowe Price Small Cap Stock Fund [Member]
|
|
| Number of units (in Shares) | shares |
139,437
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 7,953,484
|
|
| Investment, Identifier [Axis]: Thornburg Strategic Inc R6 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Thornburg Strategic Inc R6 [Member]
|
|
| Number of units (in Shares) | shares |
148,395
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 1,727,321
|
|
| Investment, Identifier [Axis]: Vanguard Federal Money Market Fund Investor [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Federal Money Market Fund Investor [Member]
|
|
| Number of units (in Shares) | shares |
7,389,998
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 7,394,969
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2020 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2020 [Member]
|
|
| Number of units (in Shares) | shares |
70,948
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 1,947,523
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2025 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2025 [Member]
|
|
| Number of units (in Shares) | shares |
100,637
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 2,007,706
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2030 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2030 [Member]
|
|
| Number of units (in Shares) | shares |
370,256
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 15,672,918
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2035 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2035 [Member]
|
|
| Number of units (in Shares) | shares |
192,157
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 5,261,265
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2040 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2040 [Member]
|
|
| Number of units (in Shares) | shares |
470,354
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 23,494,206
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2045 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2045 [Member]
|
|
| Number of units (in Shares) | shares |
165,327
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 5,743,459
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2050 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2050 [Member]
|
|
| Number of units (in Shares) | shares |
75,345
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 4,466,477
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2055 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2055 [Member]
|
|
| Number of units (in Shares) | shares |
66,634
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 4,342,328
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2060 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2060 [Member]
|
|
| Number of units (in Shares) | shares |
45,107
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 2,750,604
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2065 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2065 [Member]
|
|
| Number of units (in Shares) | shares |
36,951
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 1,479,141
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement 2070 [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement 2070 [Member]
|
|
| Number of units (in Shares) | shares |
5,758
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 183,216
|
|
| Investment, Identifier [Axis]: Vanguard Institutional Target Retirement [Member] |
|
|
| Schedule H - Line 4(i) - Schedule of Assets (Held at End of Year) [Abstract] |
|
|
| Identity of issue, borrower, lessor, or similar party |
Vanguard Institutional Target Retirement [Member]
|
|
| Number of units (in Shares) | shares |
1,065,390
|
[1] |
| Description of investment |
Registered Investment Company [Member]
|
[1] |
| Participation status |
Participant-directed Investments [Member]
|
[2] |
| Current value |
$ 14,776,966
|
|
|
|