Investments - Schedule of Unrealized Loss on Investments (Details) $ in Thousands		Mar. 31, 2026 USD ($) Security	Dec. 31, 2025 USD ($) Security
U.S. Government and Agency Securities
Twelve Months or More
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | Security	[1]	3	0
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		$ 92	$ 0
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months		$ 30,266	$ 0
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	[1]	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
Corporate Securities
Twelve Months or More
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | Security	[1]	75	27
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		$ 230	$ 57
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months		$ 29,671	$ 11,165
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	[1]	73	78
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		$ 3,900	$ 3,703
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer		$ 43,920	$ 46,381
Mortgage-backed securities
Twelve Months or More
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | Security	[1]	5	2
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		$ 9	$ 5
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months		$ 1,259	$ 263
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	[1]	53	54
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		$ 3,826	$ 3,842
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer		$ 24,774	$ 26,094
States, Municipalities and Political Subdivisions
Twelve Months or More
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | Security	[1]	36	13
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		$ 92	$ 24
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months		$ 10,424	$ 4,528
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	[1]	23	24
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		$ 1,156	$ 1,140
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer		$ 14,445	$ 14,992
Asset-backed Securities
Twelve Months or More
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | Security	[1]	2	3
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		$ 1	$ 2
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months		$ 133	$ 591
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	[1]	22	21
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		$ 663	$ 636
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer		$ 6,970	$ 6,715
Public Utilities
Twelve Months or More
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | Security	[1]	11	4
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		$ 36	$ 5
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months		$ 4,556	$ 1,772
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	[1]	6	6
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		$ 172	$ 174
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer		$ 3,461	$ 3,472
Foreign Government
Twelve Months or More
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | Security	[1]	1	0
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		$ 1	$ 0
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months		$ 423	$ 0
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	[1]	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
Fixed Maturities
Twelve Months or More
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | Security	[1]	133	49
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		$ 461	$ 93
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months		$ 76,732	$ 18,319
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | Security	[1]	177	183
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		$ 9,717	$ 9,495
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer		$ 93,570	$ 97,654

[1] This amount represents the actual number of discrete securities, not the number of shares or units of those securities. The numbers are not presented in thousands.