v3.26.1
Fair Value Measurements (Tables)
 6 Months Ended
Jun. 30, 2026
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
The following tables set forth our assets measured at fair value on a recurring basis as of the dates indicated.

June 30, 2026Level 1Level 2Level 3Total
Fair Value
(In thousands)
Financial assets:
Fixed maturity securities:
U.S. Treasury and U.S. Government-sponsored enterprises$5,572 1,314 — 6,886 
States and political subdivisions— 258,385 — 258,385 
Corporate40 877,405 — 877,445 
Commercial mortgage-backed— 10,270 — 10,270 
Residential mortgage-backed— 96,919 — 96,919 
Asset-backed— 32,155 — 32,155 
Total fixed maturity securities
5,612 1,276,448 — 1,282,060 
Equity securities:
Bond mutual funds217 — — 217 
Common stocks
1,009 — — 1,009 
Non-redeemable preferred stock7 — — 7 
Total equity securities1,233 — — 1,233 
Other long-term investments (1)
— — — 82,979 
Total financial assets$6,845 1,276,448 — 1,366,272 
(1) In accordance with Subtopic 820-10, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient are not classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheets.
December 31, 2025Level 1Level 2Level 3Total
Fair Value
(In thousands)
Financial assets:
Fixed maturity securities:
U.S. Treasury and U.S. Government-sponsored enterprises$5,654 1,354 — 7,008 
States and political subdivisions— 268,792 — 268,792 
Corporate42 866,828 — 866,870 
Commercial mortgage-backed— 8,894 — 8,894 
Residential mortgage-backed— 103,088 — 103,088 
Asset-backed— 33,209 — 33,209 
Total fixed maturity securities
5,696 1,282,165 — 1,287,861 
Equity securities:
Bond mutual funds219 — — 219 
Common stocks
1,130 — — 1,130 
Non-redeemable preferred stock7 — — 7 
Total equity securities1,356 — — 1,356 
Other long-term investments (1)
— — — 85,157 
Total financial assets$7,052 1,282,165 — 1,374,374 
(1) In accordance with Subtopic 820-10, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient are not classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheets.
Schedule of Limited Partners' Capital Account by Class These investments are included in other long-term investments on the consolidated balance sheets.
June 30, 2026December 31, 2025
(In thousands, except for years)
Fair Value
 Using NAV Per Share		Unfunded Commit-
ments
Range
(In years)
Fair Value
 Using NAV Per Share		Unfunded Commit-
ments
Range
(In years)
Description
Limited partnerships:
Middle marketInvestments in privately-originated, performing senior secured debt primarily in North America-based companies$29,369 — 2$30,956 — 2
Late-stage growthInvestments in private late-stage, established companies seeking capital to accelerate growth prior to an IPO or sale35,969 1,316 
2 to 4
36,623 2,232 
2 to 4
InfrastructureInvestments in environmental infrastructure and related technology, focusing on renewable power generation and distribution15,081 2,383 715,013 4,052 8
Total limited partnerships$80,419 3,699 $82,592 6,284 
Fair Value, by Balance Sheet Grouping [Table Text Block]
The carrying value and fair value for the financial assets and liabilities on the consolidated financial statements not otherwise disclosed for the periods indicated were as follows:

June 30, 2026December 31, 2025
(In thousands)Carrying
Value		Fair
Value		Carrying
Value		Fair
Value
Financial assets:
Policy loans$66,146 66,146 67,455 67,455 
Residential mortgage loan20 19 24 24 
Cash and cash equivalents16,960 16,960 22,976 22,976 
Financial liabilities:
Annuity - investment contracts70,547 64,415 68,975 64,066 
Financial instruments included in other long-term investments are classified in various levels of the fair value hierarchy. The following table summarizes the carrying values of these investments.
Carrying Value
(In thousands)
June 30, 2026December 31, 2025
Other long-term investments:
Limited partnerships$80,419 82,592 
Structured note
2,560 2,565 
FHLB common stock226 222 
All other investments
55 60 
Total other long-term investments$83,260 85,439