Fair Value of Financial Instruments - Financial Instruments Measured at Fair Value Including Equity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	$ 1,589,248	$ 1,686,502
Total Equity Securities	0	55,019
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	1,589,248	1,686,503
Total Equity Securities		55,019
Short-Term Investments	100	100
Money Market Accounts	38,096	20,333
Corporate-Owned Life Insurance	12,482	11,913
Total Assets Measured at Fair Value	1,639,926	1,773,868
Recurring | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		9,477
Recurring | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		14,164
Recurring | Consumer goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		11,385
Recurring | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		2,060
Recurring | Technology, media and telecommunications
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		6,405
Recurring | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		7,535
Recurring | Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		3,993
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Total Equity Securities		55,019
Short-Term Investments	100	100
Money Market Accounts	38,096	20,333
Corporate-Owned Life Insurance	0	0
Total Assets Measured at Fair Value	38,196	75,452
Recurring | Level 1 | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		9,477
Recurring | Level 1 | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		14,164
Recurring | Level 1 | Consumer goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		11,385
Recurring | Level 1 | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		2,060
Recurring | Level 1 | Technology, media and telecommunications
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		6,405
Recurring | Level 1 | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		7,535
Recurring | Level 1 | Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		3,993
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	1,588,972	1,675,919
Total Equity Securities		0
Short-Term Investments	0	0
Money Market Accounts	0	0
Corporate-Owned Life Insurance	12,482	11,913
Total Assets Measured at Fair Value	1,601,454	1,687,832
Recurring | Level 2 | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 2 | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 2 | Consumer goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 2 | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 2 | Technology, media and telecommunications
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 2 | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 2 | Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	276	10,584
Total Equity Securities		0
Short-Term Investments	0	0
Money Market Accounts	0	0
Corporate-Owned Life Insurance	0	0
Total Assets Measured at Fair Value	276	10,584
Recurring | Level 3 | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 3 | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 3 | Consumer goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 3 | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 3 | Technology, media and telecommunications
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 3 | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | Level 3 | Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Equity Securities		0
Recurring | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	50,598	50,861
Recurring | U.S. Treasury | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | U.S. Treasury | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	50,598	50,861
Recurring | U.S. Treasury | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | U.S. government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	88,595	94,493
Recurring | U.S. government agency | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | U.S. government agency | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	88,595	94,493
Recurring | U.S. government agency | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | General obligations | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	47,988	52,707
Recurring | General obligations | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	11,372	11,380
Recurring | General obligations | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	47,765	54,207
Recurring | General obligations | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	77,133	77,426
Recurring | General obligations | Level 1 | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | General obligations | Level 1 | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | General obligations | Level 1 | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | General obligations | Level 1 | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | General obligations | Level 2 | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	47,988	52,707
Recurring | General obligations | Level 2 | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	11,372	11,380
Recurring | General obligations | Level 2 | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	47,765	54,207
Recurring | General obligations | Level 2 | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	77,133	77,426
Recurring | General obligations | Level 3 | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | General obligations | Level 3 | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | General obligations | Level 3 | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | General obligations | Level 3 | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Special revenue | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	100,703	100,981
Recurring | Special revenue | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	51,993	52,227
Recurring | Special revenue | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	161,838	164,266
Recurring | Special revenue | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	99,732	101,565
Recurring | Special revenue | Level 1 | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Special revenue | Level 1 | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Special revenue | Level 1 | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Special revenue | Level 1 | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Special revenue | Level 2 | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	100,703	100,981
Recurring | Special revenue | Level 2 | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	51,993	52,227
Recurring | Special revenue | Level 2 | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	161,838	164,266
Recurring | Special revenue | Level 2 | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	99,732	101,565
Recurring | Special revenue | Level 3 | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Special revenue | Level 3 | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Special revenue | Level 3 | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Special revenue | Level 3 | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Foreign bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	12,176	19,172
Recurring | Foreign bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Foreign bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	12,176	19,172
Recurring | Foreign bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	129,816	140,467
Recurring | Public utilities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Public utilities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	129,816	140,467
Recurring | Public utilities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	39,760	43,473
Recurring | Corporate bonds | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	54,918	70,548
Recurring | Corporate bonds | Consumer goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	80,910	95,921
Recurring | Corporate bonds | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	28,116	33,472
Recurring | Corporate bonds | Technology, media and telecommunications
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	75,725	81,788
Recurring | Corporate bonds | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	116,771	145,691
Recurring | Corporate bonds | Level 1 | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 1 | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 1 | Consumer goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 1 | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 1 | Technology, media and telecommunications
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 1 | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 2 | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	39,760	43,473
Recurring | Corporate bonds | Level 2 | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	54,918	70,548
Recurring | Corporate bonds | Level 2 | Consumer goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	80,910	95,921
Recurring | Corporate bonds | Level 2 | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	28,116	33,472
Recurring | Corporate bonds | Level 2 | Technology, media and telecommunications
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	75,725	81,788
Recurring | Corporate bonds | Level 2 | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	116,771	140,799
Recurring | Corporate bonds | Level 3 | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 3 | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 3 | Consumer goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 3 | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 3 | Technology, media and telecommunications
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Corporate bonds | Level 3 | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	4,892
Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	53,197	21,483
Recurring | Mortgage-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Mortgage-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	53,197	21,483
Recurring | Mortgage-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Collateralized mortgage obligations | Government National Mortgage Association
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	144,679	153,206
Recurring | Collateralized mortgage obligations | Federal Home Loan Mortgage Corporation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	68,882	71,685
Recurring | Collateralized mortgage obligations | Federal National Mortgage Association
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	43,520	45,653
Recurring | Collateralized mortgage obligations | Level 1 | Government National Mortgage Association
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Collateralized mortgage obligations | Level 1 | Federal Home Loan Mortgage Corporation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Collateralized mortgage obligations | Level 1 | Federal National Mortgage Association
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Collateralized mortgage obligations | Level 2 | Government National Mortgage Association
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	144,679	153,206
Recurring | Collateralized mortgage obligations | Level 2 | Federal Home Loan Mortgage Corporation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	68,882	66,862
Recurring | Collateralized mortgage obligations | Level 2 | Federal National Mortgage Association
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	43,520	45,653
Recurring | Collateralized mortgage obligations | Level 3 | Government National Mortgage Association
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Collateralized mortgage obligations | Level 3 | Federal Home Loan Mortgage Corporation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	4,823
Recurring | Collateralized mortgage obligations | Level 3 | Federal National Mortgage Association
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	3,061	3,831
Recurring | Asset-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Asset-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	2,785	2,962
Recurring | Asset-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	$ 276	$ 869