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Related Party Transactions (Schedule of Pooling Share Percentages) (Details) | 12 Months Ended
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Dec. 31, 2021
Nodak Insurance Company [Member] |
Subsidiary of Limited Liability Company or Limited Partnership [Line Items] |
Total pooling share percentages | 66.00%
American West Insurance Company [Member] |
Subsidiary of Limited Liability Company or Limited Partnership [Line Items] |
Total pooling share percentages | 7.00%
Primero Insurance Company [Member] |
Subsidiary of Limited Liability Company or Limited Partnership [Line Items] |
Total pooling share percentages | 3.00%
Battle Creek Mutual Insurance Company [Member] |
Subsidiary of Limited Liability Company or Limited Partnership [Line Items] |
Total pooling share percentages | 2.00%
Direct Auto Insurance Company [Member] |
Subsidiary of Limited Liability Company or Limited Partnership [Line Items] |
Total pooling share percentages | 13.00%
Westminster American Insurance Company [Member] |
Subsidiary of Limited Liability Company or Limited Partnership [Line Items] |
Total pooling share percentages | 9.00%
Total [Member] |
Subsidiary of Limited Liability Company or Limited Partnership [Line Items] |
Total pooling share percentages | 100.00%

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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