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Investments - Schedule of Fair Value of Financial Instruments Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Schedule of Available-for-sale Securities
Equity securities, fair value	$ 39,407	$ 37,958
Fixed maturities (amortized cost of $596,185 and $672,139	561,728	663,602
Debt Securities, Trading, and Equity Securities, FV-NI	601,616	701,941
U.S. Government and Agency Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	36,228	49,340
Foreign Government
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	3,396	3,459
States, Municipalities and Political Subdivisions
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	67,895	79,896
Public Utilities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	18,868	25,457
Corporate Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	207,871	244,443
Mortgage-backed securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	157,349	186,740
Asset-backed Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	66,169	70,162
Redeemable Preferred Stocks
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	3,952	4,105
Fixed Maturities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	561,728	663,602
Nonredeemable Preferred Stocks
Schedule of Available-for-sale Securities
Equity securities, fair value	4,675	4,894
Equity Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	39,407	37,958
Other Long-term Investments
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	481	381
Mutual Fund
Schedule of Available-for-sale Securities
Equity securities, fair value	34,732	33,064
Level 1
Schedule of Available-for-sale Securities
Debt Securities, Trading, and Equity Securities, FV-NI	30,872	30,381
Level 1 | U.S. Government and Agency Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 1 | Foreign Government
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 1 | States, Municipalities and Political Subdivisions
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 1 | Public Utilities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 1 | Corporate Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 1 | Mortgage-backed securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 1 | Asset-backed Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 1 | Redeemable Preferred Stocks
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	515	535
Level 1 | Fixed Maturities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	515	535
Level 1 | Nonredeemable Preferred Stocks
Schedule of Available-for-sale Securities
Equity securities, fair value	4,675	4,894
Level 1 | Equity Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	30,057	29,546
Level 1 | Other Long-term Investments
Schedule of Available-for-sale Securities
Other Investments	300	300
Level 1 | Mutual Fund
Schedule of Available-for-sale Securities
Equity securities, fair value	25,382	24,652
Level 2
Schedule of Available-for-sale Securities
Debt Securities, Trading, and Equity Securities, FV-NI	570,744	671,560
Level 2 | U.S. Government and Agency Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	36,228	49,340
Level 2 | Foreign Government
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	3,396	3,459
Level 2 | States, Municipalities and Political Subdivisions
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	67,895	79,896
Level 2 | Public Utilities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	18,868	25,457
Level 2 | Corporate Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	207,871	244,443
Level 2 | Mortgage-backed securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	157,349	186,740
Level 2 | Asset-backed Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	66,169	70,162
Level 2 | Redeemable Preferred Stocks
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	3,437	3,570
Level 2 | Fixed Maturities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	561,213	663,067
Level 2 | Nonredeemable Preferred Stocks
Schedule of Available-for-sale Securities
Equity securities, fair value	0	0
Level 2 | Equity Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	9,350	8,412
Level 2 | Other Long-term Investments
Schedule of Available-for-sale Securities
Other Investments	181	81
Level 2 | Mutual Fund
Schedule of Available-for-sale Securities
Equity securities, fair value	9,350	8,412
Level 3
Schedule of Available-for-sale Securities
Debt Securities, Trading, and Equity Securities, FV-NI	0	0
Level 3 | U.S. Government and Agency Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | Foreign Government
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | States, Municipalities and Political Subdivisions
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | Public Utilities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | Corporate Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | Mortgage-backed securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | Asset-backed Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | Redeemable Preferred Stocks
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | Fixed Maturities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | Nonredeemable Preferred Stocks
Schedule of Available-for-sale Securities
Equity securities, fair value	0	0
Level 3 | Equity Securities
Schedule of Available-for-sale Securities
Fixed maturities (amortized cost of $596,185 and $672,139	0	0
Level 3 | Other Long-term Investments
Schedule of Available-for-sale Securities
Other Investments	0	0
Level 3 | Mutual Fund
Schedule of Available-for-sale Securities
Equity securities, fair value	$ 0	$ 0

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