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Investments - Schedule of Unrealized Loss on Investments (Details) $ in Thousands | Jun. 30, 2022 USD ($) security | Dec. 31, 2021 USD ($) security
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U.S. Government and Agency Securities |  |
Twelve Months or More |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | security | 62 | 39
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 199 | $ 971
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 6,918 | $ 32,167
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security | 30 | 15
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | $ 2,845 | $ 355
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer | $ 28,633 | $ 8,126
States, Municipalities and Political Subdivisions |  |
Twelve Months or More |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | security | 100 | 63
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 3,809 | $ 761
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 44,934 | $ 41,670
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security | 12 | 8
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | $ 1,797 | $ 320
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer | $ 13,302 | $ 11,423
Public Utilities |  |
Twelve Months or More |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | security | 21 | 14
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 505 | $ 346
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 9,892 | $ 12,719
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security | 9 | 7
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | $ 1,291 | $ 464
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer | $ 7,939 | $ 7,708
Corporate Securities |  |
Twelve Months or More |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | security | 246 | 205
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 6,139 | $ 4,589
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 97,252 | $ 158,959
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security | 105 | 12
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | $ 15,333 | $ 204
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer | $ 87,762 | $ 7,896
Mortgage-backed securities |  |
Twelve Months or More |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | security | 177 | 138
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 4,823 | $ 2,638
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 74,066 | $ 111,636
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security | 80 | 37
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | $ 10,651 | $ 1,559
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer | $ 70,979 | $ 41,786
Asset-backed Securities |  |
Twelve Months or More |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | security | 118 | 111
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 3,160 | $ 493
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 53,077 | $ 60,566
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security | 14 | 2
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | $ 261 | $ 30
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer | $ 8,486 | $ 1,596
Redeemable Preferred Stocks |  |
Twelve Months or More |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | security | 34 | 1
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 167 | $ 2
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 3,729 | $ 90
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security | 1 | 1
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | $ 11 | $ 9
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer | $ 88 | $ 91
Fixed Maturities |  |
Twelve Months or More |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | security | 761 | 572
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 18,821 | $ 9,808
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 292,226 | $ 419,817
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security | 251 | 82
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | $ 32,189 | $ 2,941
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer | $ 217,189 | $ 78,626
Foreign Government |  |
Twelve Months or More |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | security | 3 | 1
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 19 | $ 8
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 2,358 | $ 2,010
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security | 0 | 0
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | $ 0 | $ 0
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer | $ 0 | $ 0

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