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Investments by Category and Level (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | $ 985,458 | $ 1,001,970
US Government and Government Agencies and Authorities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 130,425 | 120,816
Foreign Government Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 1,516 | 4,071
US States and Political Subdivisions Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 134,382 | 133,751
Public Utility, Bonds |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 29,980 | 25,334
Corporate Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 292,329 | 288,872
Mortgage Backed Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 288,212 | 251,903
Asset-backed Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 56,657 | 57,129
Redeemable Preferred Stock |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 6,510 | 2,985
Fixed Maturities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 940,011 | 884,861
Mutual Fund |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 152 | 65,453
Public Utility, Equities |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 3,663
Common Stock |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 44,492
Nonredeemable Preferred Stock |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 7,293 | 3,002
Equity Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 7,445 | 116,610
Equity Securities, FV-NI | 7,445 | 116,610
Other Long-term Investments |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 38,002 | 499
Level 1 |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 9,299 | 117,657
Level 1 | US Government and Government Agencies and Authorities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 1 | Foreign Government Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 1 | US States and Political Subdivisions Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 1 | Public Utility, Bonds |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 1 | Corporate Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 1 | Mortgage Backed Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 1 | Asset-backed Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 1 | Redeemable Preferred Stock |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 1,554 | 747
Level 1 | Fixed Maturities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 1,554 | 747
Level 1 | Mutual Fund |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 152 | 65,453
Level 1 | Public Utility, Equities |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 3,663
Level 1 | Common Stock |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 44,492
Level 1 | Nonredeemable Preferred Stock |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 7,293 | 3,002
Level 1 | Equity Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 7,445 | 116,610
Level 1 | Other Long-term Investments |  |
Schedule of Available-for-sale Securities |  |
Other Investments | 300 | 300
Level 2 |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 976,159 | 884,313
Level 2 | US Government and Government Agencies and Authorities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 130,425 | 120,816
Level 2 | Foreign Government Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 1,516 | 4,071
Level 2 | US States and Political Subdivisions Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 134,382 | 133,751
Level 2 | Public Utility, Bonds |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 29,980 | 25,334
Level 2 | Corporate Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 292,329 | 288,872
Level 2 | Mortgage Backed Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 288,212 | 251,903
Level 2 | Asset-backed Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 56,657 | 57,129
Level 2 | Redeemable Preferred Stock |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 4,956 | 2,238
Level 2 | Fixed Maturities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 938,457 | 884,114
Level 2 | Mutual Fund |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 0
Level 2 | Public Utility, Equities |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 0
Level 2 | Common Stock |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 0
Level 2 | Nonredeemable Preferred Stock |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 0
Level 2 | Equity Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 2 | Other Long-term Investments |  |
Schedule of Available-for-sale Securities |  |
Other Investments | 37,702 | 199
Level 3 |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | US Government and Government Agencies and Authorities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | Foreign Government Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | US States and Political Subdivisions Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | Public Utility, Bonds |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | Corporate Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | Mortgage Backed Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | Asset-backed Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | Redeemable Preferred Stock |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | Fixed Maturities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | Mutual Fund |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 0
Level 3 | Public Utility, Equities |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 0
Level 3 | Common Stock |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 0
Level 3 | Nonredeemable Preferred Stock |  |
Schedule of Available-for-sale Securities |  |
Equity Securities, FV-NI | 0 | 0
Level 3 | Equity Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale Securities | 0 | 0
Level 3 | Other Long-term Investments |  |
Schedule of Available-for-sale Securities |  |
Other Investments | $ 0 | $ 0

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