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Investments Unrealized Losses Less Than and Greater Than 12 Months (Details)	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Debt Securities, Available-for-sale [Line Items]
Credit valuation loss on fixed maturities AFS	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	95,074,000	184,082,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 1,318,000	$ 7,201,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	168	327
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 804,017,000	$ 821,516,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 153,023,000	$ 178,540,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	1,035	1,045
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 899,091,000	$ 1,005,598,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 154,341,000	$ 185,741,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	1,203	1,372
Debt security maturities rated investment grade, percent	98.70%	99.20%
US Treasury Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 835,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0	$ 51,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	0	3
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 883,000	$ 435,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 99,000	$ 64,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	7	5
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 883,000	$ 1,270,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 99,000	$ 115,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	7	8
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 21,991,000	$ 42,583,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 147,000	$ 1,484,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	28	63
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 145,859,000	$ 147,534,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 27,289,000	$ 32,058,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	180	177
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 167,850,000	$ 190,117,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 27,436,000	$ 33,542,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	208	240
Corporate Debt Security Financial Sector
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 13,485,000	$ 29,258,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 196,000	$ 756,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	23	53
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 148,244,000	$ 154,448,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 26,651,000	$ 32,529,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	182	192
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 161,729,000	$ 183,706,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 26,847,000	$ 33,285,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	205	245
Corporate Debt Security Consumer Sector
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 19,282,000	$ 37,231,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 361,000	$ 2,053,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	25	57
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 165,229,000	$ 161,795,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 38,732,000	$ 43,902,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	225	216
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 184,511,000	$ 199,026,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 39,093,000	$ 45,955,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	250	273
Corporate Debt Security Utilities Sector
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 12,109,000	$ 16,750,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 170,000	$ 687,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	35	47
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 82,012,000	$ 79,488,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 19,878,000	$ 22,083,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	152	142
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 94,121,000	$ 96,238,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 20,048,000	$ 22,770,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	187	189
Corporate Debt Security Energy Sector
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 11,650,000	$ 11,654,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 214,000	$ 438,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	24	29
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 44,795,000	$ 52,537,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 7,408,000	$ 9,521,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	55	65
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 56,445,000	$ 64,191,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 7,622,000	$ 9,959,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	79	94
Corporate Debt Security Communications Sector
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 10,682,000	$ 9,973,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 126,000	$ 250,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	14	11
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 39,964,000	$ 48,462,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 8,328,000	$ 9,660,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	50	60
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 50,646,000	$ 58,435,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 8,454,000	$ 9,910,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	64	71
Corporate Debt Security All Other Sector
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 4,289,000	$ 25,208,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 38,000	$ 1,237,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	13	38
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 72,186,000	$ 68,756,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 15,989,000	$ 15,131,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	93	87
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 76,475,000	$ 93,964,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 16,027,000	$ 16,368,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	106	125
Commercial Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 100,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	0	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 79,000	$ 89,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 2,000	$ 5,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	1	1
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 79,000	$ 189,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 2,000	$ 5,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	1	2
Residential Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 17,000	$ 160,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0	$ 2,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	4	11
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 93,197,000	$ 93,231,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 8,183,000	$ 13,024,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	77	84
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 93,214,000	$ 93,391,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 8,183,000	$ 13,026,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	81	95
Asset-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 1,569,000	$ 10,330,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 66,000	$ 243,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions	2	14
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 11,569,000	$ 14,741,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 464,000	$ 563,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	13	16
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 13,138,000	$ 25,071,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 530,000	$ 806,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	15	30

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