Fair Value of Financial Instruments - Financial Instruments Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	$ 1,852,791	$ 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	1,852,791	1,686,503
Total Equity Securities		55,019
Short-Term Investments	100	100
Money Market Accounts	105,901	20,333
Corporate-Owned Life Insurance	13,135	11,913
Total Assets Measured at Fair Value	1,971,927	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 | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	31,347	50,861
Recurring | U.S. government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	91,601	94,493
Recurring | General obligations | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	22,126	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	7,095	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	24,586	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	35,887	77,426
Recurring | Special revenue | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	54,963	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	30,342	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	94,225	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	52,810	101,565
Recurring | Foreign bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	23,500	19,172
Recurring | Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	123,853	140,467
Recurring | Corporate bonds | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	42,227	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	59,291	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	110,523	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	39,868	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	85,053	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	229,792	145,691
Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	340,655	21,483
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	128,753	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	56,342	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	40,823	45,653
Recurring | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	127,129	3,831
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	31,347	0
Total Equity Securities		55,019
Short-Term Investments	100	100
Money Market Accounts	105,901	20,333
Corporate-Owned Life Insurance	0	0
Total Assets Measured at Fair Value	137,348	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 1 | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	31,347	0
Recurring | Level 1 | U.S. government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | General obligations | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | General obligations | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | General obligations | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | General obligations | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | Special revenue | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | Special revenue | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | Special revenue | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | Special revenue | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | Foreign bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | Corporate bonds | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | Corporate bonds | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | 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	0	0
Recurring | Level 1 | Corporate bonds | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | 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	0	0
Recurring | Level 1 | Corporate bonds | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 1 | 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	0	0
Recurring | Level 1 | 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	0	0
Recurring | Level 1 | 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	0	0
Recurring | Level 1 | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	1,821,168	1,675,919
Total Equity Securities		0
Short-Term Investments	0	0
Money Market Accounts	0	0
Corporate-Owned Life Insurance	13,135	11,913
Total Assets Measured at Fair Value	1,834,303	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 2 | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	50,861
Recurring | Level 2 | U.S. government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	91,601	94,493
Recurring | Level 2 | General obligations | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	22,126	52,707
Recurring | Level 2 | General obligations | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	7,095	11,380
Recurring | Level 2 | General obligations | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	24,586	54,207
Recurring | Level 2 | General obligations | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	35,887	77,426
Recurring | Level 2 | Special revenue | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	54,963	100,981
Recurring | Level 2 | Special revenue | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	30,342	52,227
Recurring | Level 2 | Special revenue | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	94,225	164,266
Recurring | Level 2 | Special revenue | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	52,810	101,565
Recurring | Level 2 | Foreign bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	23,500	19,172
Recurring | Level 2 | Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	123,853	140,467
Recurring | Level 2 | Corporate bonds | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	42,227	43,473
Recurring | Level 2 | Corporate bonds | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	59,291	70,548
Recurring | Level 2 | 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	110,523	95,921
Recurring | Level 2 | Corporate bonds | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	39,868	33,472
Recurring | Level 2 | 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	85,053	81,788
Recurring | Level 2 | Corporate bonds | Financial services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	229,792	140,799
Recurring | Level 2 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	340,655	21,483
Recurring | Level 2 | 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	128,753	153,206
Recurring | Level 2 | 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	56,342	66,862
Recurring | Level 2 | 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	40,823	45,653
Recurring | Level 2 | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	126,853	2,962
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 | Level 3 | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | U.S. government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | General obligations | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | General obligations | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | General obligations | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | General obligations | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | Special revenue | Midwest
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | Special revenue | Northeast
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | Special revenue | South
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | Special revenue | West
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | Foreign bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | Corporate bonds | Energy
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | Corporate bonds | Industrials
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | 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	0	0
Recurring | Level 3 | Corporate bonds | Health care
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | 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	0	0
Recurring | Level 3 | Corporate bonds | 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 | Level 3 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	0	0
Recurring | Level 3 | 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	0	0
Recurring | Level 3 | 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	0	4,823
Recurring | Level 3 | 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	0	0
Recurring | Level 3 | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Available-for-Sale Fixed Maturities	$ 276	$ 869