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Investments - Available for Sale Investments (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Available for sale investments |  |
Amortized Cost | $ 561,580 | $ 426,122
Gross Unrealized Gains | 407 | 9,265
Gross Unrealized Losses | (46,923) | (2,705)
Fair Value | 515,064 | 432,682
U.S. Governments |  |
Available for sale investments |  |
Amortized Cost | 50,802 | 16,713
Gross Unrealized Gains | 2 | 347
Gross Unrealized Losses | (2,253) | (190)
Fair Value | 48,551 | 16,870
States, territories, and possessions |  |
Available for sale investments |  |
Amortized Cost | 5,857 | 3,789
Gross Unrealized Gains | 49 | 288
Gross Unrealized Losses | (552) | (63)
Fair Value | 5,354 | 4,014
Political subdivisions |  |
Available for sale investments |  |
Amortized Cost | 4,919 | 6,295
Gross Unrealized Gains |  | 107
Gross Unrealized Losses | (621) | (22)
Fair Value | 4,298 | 6,380
Special revenue excluding mortgage/asset-backed securities |  |
Available for sale investments |  |
Amortized Cost | 37,260 | 43,301
Gross Unrealized Gains | 26 | 1,273
Gross Unrealized Losses | (4,487) | (76)
Fair Value | 32,799 | 44,498
Industrial and miscellaneous |  |
Available for sale investments |  |
Amortized Cost | 278,164 | 245,064
Gross Unrealized Gains | 79 | 5,873
Gross Unrealized Losses | (24,148) | (1,891)
Fair Value | 254,095 | 249,046
Mortgage/asset-backed securities |  |
Available for sale investments |  |
Amortized Cost | 184,578 | 110,960
Gross Unrealized Gains | 251 | 1,377
Gross Unrealized Losses | (14,862) | (463)
Fair Value | $ 169,967 | $ 111,874

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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