Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2024

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 that are measured at fair value on a recurring basis as of the dates indicated.

December 31, 2024 (In thousands)	Level 1		Level 2	Level 3	Total Fair Value
Financial assets:
Fixed maturity securities:
U.S. Treasury and U.S. Government-sponsored enterprises	$	5,909	3,304	—	9,213
States and political subdivisions	—		268,302	—	268,302
Corporate	42		794,947	—	794,989
Commercial mortgage-backed	—		311	—	311
Residential mortgage-backed	—		93,642	—	93,642
Asset-backed	—		54,504	—	54,504
Total fixed maturity securities	5,951		1,215,010	—	1,220,961
Equity securities:
Bond mutual funds	739		—	—	739
Common stock	810		—	—	810
Non-redeemable preferred stock	7		—	—	7
Non-redeemable preferred stock fund	3,891		—	—	3,891
Total equity securities	5,447		—	—	5,447
Other long-term investments (1)	—		—	—	93,337
Total financial assets	$	11,398	1,215,010	—	1,319,745

(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 have not been classified in the fair value hierarchy. The fair value amounts presented in this table permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheet. 

December 31, 2023 (In thousands)	Level 1		Level 2	Level 3	Total Fair Value
Financial assets:
Fixed maturity securities:
U.S. Treasury and U.S. Government-sponsored enterprises	$	6,062	3,653	—	9,715
States and political subdivisions	—		287,231	—	287,231
Corporate	43		787,564	—	787,607
Commercial mortgage-backed	—		171	—	171
Residential mortgage-backed	—		97,123	—	97,123
Asset-backed	—		57,134	—	57,134
Total fixed maturity securities	6,105		1,232,876	—	1,238,981
Equity securities:
Bond mutual funds	740		—	—	740
Common stock	665		—	—	665
Non-redeemable preferred stock	7		—	—	7
Non-redeemable preferred stock fund	3,870		—	—	3,870
Total equity securities	5,282		—	—	5,282
Other long-term investments (1)	—		—	—	82,460
Total financial assets	$	11,387	1,232,876	—	1,326,723

(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 have not been classified in the fair value hierarchy. The fair value amounts presented in this table permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheet.

Schedule of Limited Partners' Capital Account by Class [Table Text Block]

These investments are included in other long-term investments on the consolidated balance sheets.

		December 31, 2024				December 31, 2023
(In thousands, except 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 market	Investments in privately-originated, performing senior secured debt primarily in North America-based companies	$	35,369	1,660	3	$	34,858	3,452	4
Global equity fund	Investments in common stocks of U.S., international developed and emerging markets with a focus on long-term capital growth	11,568		—	0	10,345		—	0
Late-stage growth	Investments in private late-stage, established companies seeking capital to accelerate growth prior to an IPO or sale	27,825		8,134	3 to 5	20,524		14,271	4 to 6
Infrastructure	Investments in environmental infrastructure and related technology, focusing on renewable power generation and distribution	18,575		5,637	9	16,733		9,576	10
Total limited partnerships		$	93,337	15,431		$	82,460	27,299

Fair Value, by Balance Sheet Grouping [Table Text Block]

The carrying amount and fair value for the financial assets and liabilities on the consolidated financial statements not otherwise disclosed for the periods indicated were as follows:

	December 31, 2024			December 31, 2023
(In thousands)	Carrying Value		Fair Value	Carrying Value	Fair Value
Financial assets:
Policy loans	$	71,216	71,216	75,359	75,359
Residential mortgage loans	33		34	42	42
Cash and cash equivalents	29,271		29,271	26,997	26,997
Financial liabilities:
Annuity - investment contracts	68,888		63,629	67,690	63,283

Other long-term investments. Financial instruments included in other long-term investments are classified in various levels of the fair value hierarchy. The following table summarizes the carrying amounts of these investments.

As of December 31, (In thousands)	2024		2023
Other long-term investments:
Limited partnerships	$	93,337	82,460
FHLB common stock	212		202
Mortgage loans	33		42
All other investments	22		21
Total other long-term investments	$	93,604	82,725

We carried no limited partnership investments at cost at either December 31, 2024 or December 31, 2023.

We are a member of the FHLB of Dallas and such membership requires members to own stock in the FHLB. Our FHLB stock is carried at amortized cost, which approximates fair value.