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Investments Aging of Unrealized Losses by Class (Details) $ in Thousands	Dec. 31, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
US Government and Government Agencies and Authorities
Less Than Twelve Months
Number of Securities | security	44	37
Gross unrealized losses	$ 129	$ 89
Fair Value	$ 40,341	$ 26,372
Twelve Months or More
Number of securities | security	18	39
Gross unrealized losses	$ 10	$ 104
Fair Value	$ 10,482	$ 31,364
Foreign Government Debt Securities
Less Than Twelve Months
Number of Securities | security	0	0
Gross unrealized losses	$ 0	$ 0
Fair Value	$ 0	$ 0
Twelve Months or More
Number of securities | security	0	2
Gross unrealized losses	$ 0	$ 1
Fair Value	$ 0	$ 600
US States and Political Subdivisions Debt Securities
Less Than Twelve Months
Number of Securities | security	22	31
Gross unrealized losses	$ 272	$ 61
Fair Value	$ 30,538	$ 14,508
Twelve Months or More
Number of securities | security	0	2
Gross unrealized losses	$ 0	$ 2
Fair Value	$ 0	$ 1,262
Public Utility, Bonds
Less Than Twelve Months
Number of Securities | security	8	9
Gross unrealized losses	$ 28	$ 25
Fair Value	$ 9,472	$ 4,626
Twelve Months or More
Number of securities | security	0	2
Gross unrealized losses	$ 0	$ 1
Fair Value	$ 0	$ 250
Corporate Debt Securities
Less Than Twelve Months
Number of Securities | security	40	42
Gross unrealized losses	$ 116	$ 124
Fair Value	$ 25,052	$ 22,435
Twelve Months or More
Number of securities | security	3	27
Gross unrealized losses	$ 2	$ 19
Fair Value	$ 753	$ 9,605
Mortgage Backed Securities
Less Than Twelve Months
Number of Securities | security	87	89
Gross unrealized losses	$ 397	$ 322
Fair Value	$ 100,171	$ 59,101
Twelve Months or More
Number of securities | security	8	50
Gross unrealized losses	$ 69	$ 155
Fair Value	$ 3,479	$ 12,738
Asset-backed Securities
Less Than Twelve Months
Number of Securities | security	21	15
Gross unrealized losses	$ 207	$ 34
Fair Value	$ 17,682	$ 8,447
Twelve Months or More
Number of securities | security	1	5
Gross unrealized losses	$ 12	$ 7
Fair Value	$ 988	$ 1,259
Redeemable Preferred Stock
Less Than Twelve Months
Number of Securities | security	5	0
Gross unrealized losses	$ 13	$ 0
Fair Value	$ 358	$ 0
Twelve Months or More
Number of securities | security	0	1
Gross unrealized losses	$ 0	$ 2
Fair Value	$ 0	$ 97
Fixed Maturities
Less Than Twelve Months
Number of Securities | security	227	223
Gross unrealized losses	$ 1,162	$ 655
Fair Value	$ 223,614	$ 135,489
Twelve Months or More
Number of securities | security	30	128
Gross unrealized losses	$ 93	$ 291
Fair Value	$ 15,702	$ 57,175

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- Definition

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months [Abstract]

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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months.

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