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Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2022
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.
 
December 31, 2022
(In thousands)
Level 1Level 2Level 3Total
Fair Value
Financial assets:
Fixed maturity securities, available-for-sale:    
U.S. Treasury and U.S. Government-sponsored enterprises$9,567 3,711 — 13,278 
States and political subdivisions— 307,358 — 307,358 
Corporate44 715,601 — 715,645 
Commercial mortgage-backed— 169 — 169 
Residential mortgage-backed— 99,826 — 99,826 
Asset-backed— 43,242 — 43,242 
Foreign governments— 101 — 101 
Total fixed maturity securities available-for-sale9,611 1,170,008 — 1,179,619 
Equity securities:    
Stock mutual funds2,615 — — 2,615 
Bond mutual funds4,337 — — 4,337 
Common stock857 — — 857 
Non-redeemable preferred stock8 — — 8 
Non-redeemable preferred stock fund3,773 — — 3,773 
Total equity securities11,590 — — 11,590 
Other long-term investments (1)
— — — 66,846 
Total financial assets$21,201 1,170,008 — 1,258,055 
(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, 2021
(In thousands)
Level 1Level 2Level 3Total
Fair Value
Financial assets:    
Fixed maturity securities, available-for-sale:    
U.S. Treasury and U.S. Government-sponsored enterprises$10,611 4,459 — 15,070 
States and political subdivisions— 383,958 — 383,958 
Corporate51 892,957 — 893,008 
Residential mortgage-backed— 133,795 — 133,795 
Asset-backed— 44,676 — 44,676 
Foreign governments— 110 — 110 
Total fixed maturity securities available-for-sale10,662 1,459,955 — 1,470,617 
Equity securities:    
Stock mutual funds3,571 — — 3,571 
Bond mutual funds5,060 — — 5,060 
Common stock990 — — 990 
Non-redeemable preferred stock161 — — 161 
Non-redeemable preferred stock fund5,062 — — 5,062 
Total equity securities14,844 — — 14,844 
Other long-term investments (1)
— — — 56,038 
Total financial assets$25,506 1,459,955 — 1,541,499 
(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, 2022December 31, 2021

(In thousands, except years)
Fair Value Using NAV Per ShareUnfunded Commit-
ments		Range
(In years)		Fair Value Using NAV Per ShareUnfunded Commit-
ments		Range
(In years)
Description
Limited partnerships
Middle marketInvestments in privately-originated, performing senior secured debt primarily in North America-based companies$33,234 6,011 5$21,947 18,712 10
Global equity fundInvestments in common stocks of U.S., international developed and emerging markets with a focus on long-term capital growth9,037 — 010,607 — 0
Late-stage growthInvestments in private late-stage, established companies seeking capital to accelerate growth prior to an IPO or sale16,892 18,444 
5 to 7
20,468 4,459 6
InfrastructureInvestments in environmental infrastructure and related technology, focusing on renewable power generation and distribution7,683 4,107 113,016 16,653 12
Total limited partnerships$66,846 28,562 $56,038 39,824 
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, 2022December 31, 2021
(In thousands)Carrying
Value		Fair
Value		Carrying
Value		Fair
Value
Financial assets:    
Policy loans$78,773 78,773 80,307 80,307 
Commercial mortgage loan— — 1,000 1,000 
Residential mortgage loans49 50 148 169 
Cash and cash equivalents22,973 22,973 27,294 27,294 
Financial liabilities:  
Annuity - investment contracts67,344 61,701 64,384 72,352 
Other long-term investments. The following table summarizes the carrying amounts of other long-term investments.

As of December 31,
(In thousands)
20222021
Other long-term investments:
Limited partnerships$69,294 56,038 
FHLB common stock193 192 
Mortgage loans49 1,148 
All other investments22 21 
Total other long-term investments$69,558 57,399 

We carried $2.4 million of limited partnership investments at cost at December 31, 2022. None were carried at cost at December 31, 2021.
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.