Investments - Available for Sale Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Available for sale investments
Amortized Cost	$ 530,992	$ 426,122
Gross Unrealized Gains	9	9,265
Gross Unrealized Losses	(54,207)	(2,705)
Fair Value	476,794	432,682
U.S. Governments
Available for sale investments
Amortized Cost	52,021	16,713
Gross Unrealized Gains		347
Gross Unrealized Losses	(2,423)	(190)
Fair Value	49,598	16,870
States, territories, and possessions
Available for sale investments
Amortized Cost	7,671	3,789
Gross Unrealized Gains		288
Gross Unrealized Losses	(958)	(63)
Fair Value	6,713	4,014
Political subdivisions
Available for sale investments
Amortized Cost	4,922	6,295
Gross Unrealized Gains		107
Gross Unrealized Losses	(677)	(22)
Fair Value	4,245	6,380
Special revenue excluding mortgage/asset-backed securities
Available for sale investments
Amortized Cost	42,409	43,301
Gross Unrealized Gains		1,273
Gross Unrealized Losses	(6,334)	(76)
Fair Value	36,075	44,498
Corporate and other
Available for sale investments
Amortized Cost	269,308	245,064
Gross Unrealized Gains	5	5,873
Gross Unrealized Losses	(28,893)	(1,891)
Fair Value	240,420	249,046
Mortgage/asset-backed securities
Available for sale investments
Amortized Cost	154,661	110,960
Gross Unrealized Gains	4	1,377
Gross Unrealized Losses	(14,922)	(463)
Fair Value	$ 139,743	$ 111,874

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).

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