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Unpaid Losses and Loss Adjustment Expenses (Schedule of required information about average historical claims) (Details)	Dec. 31, 2021
Private Passenger Auto [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Years 1	54.40%
Years 2	20.40%
Years 3	10.60%
Years 4	5.90%
Years 5	4.70%
Years 6	3.20%
Years 7	0.80%
Years 8
Years 9
Years 10
Non-Standard Auto (Primero) [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Years 1	78.20%
Years 2	16.60%
Years 3	3.80%
Years 4	0.90%
Years 5	0.20%
Years 6	0.20%
Years 7	0.10%
Years 8
Years 9
Years 10
Non-Standard Auto (Direct Auto) [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Years 1	35.40%
Years 2	25.10%
Years 3	16.20%
Years 4	9.90%
Years 5	6.10%
Years 6	2.90%
Years 7	2.10%
Years 8	1.50%
Years 9	0.60%
Years 10	0.20%
Home and Farm [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Years 1	68.10%
Years 2	14.50%
Years 3	9.40%
Years 4	4.90%
Years 5	2.40%
Years 6	0.50%
Years 7	0.20%
Years 8
Years 9
Years 10
Crop [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Years 1	100.00%
Years 2
Years 3
Years 4
Years 5
Years 6
Years 7
Years 8
Years 9
Years 10
Commercial (Westminster) [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Years 1	70.40%
Years 2	23.60%
Years 3	6.00%
Years 4
Years 5
Years 6
Years 7
Years 8
Years 9
Years 10
Commercial (non-Westminster) [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Years 1	87.30%
Years 2	3.70%
Years 3	2.60%
Years 4	3.00%
Years 5	2.90%
Years 6	0.50%
Years 7
Years 8
Years 9
Years 10

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Percentage of average annual payout, after reinsurance, in the eighth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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Percentage of average annual payout, after reinsurance, in the fifth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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Percentage of average annual payout, after reinsurance, in the fourth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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Percentage of average annual payout, after reinsurance, in the ninth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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Percentage of average annual payout, after reinsurance, in the first year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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Percentage of average annual payout, after reinsurance, in the seventh year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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Percentage of average annual payout, after reinsurance, in the sixth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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Percentage of average annual payout, after reinsurance, in the tenth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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Percentage of average annual payout, after reinsurance, in the third year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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Percentage of average annual payout, after reinsurance, in the second year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

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