v3.26.1
Investments - Amortized Cost and Estimated Fair Value of Fixed Maturities by Contractual Maturity (Details) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Held to maturity    
Due in one year or less, amortized cost $ 26,143,000  
Due in one year or less, estimated fair value 26,081,000  
Due after one year through five years, amortized cost 187,684,000  
Due after one year through five years, estimated fair value 178,070,000  
Due after five years through ten years, amortized cost 216,730,000  
Due after five years through ten years, estimated fair value 207,507,000  
Due after ten years, amortized cost 366,979,000  
Due after ten years, estimated fair value 336,136,000  
Mortgage-backed securities, amortized cost 7,065,000  
Mortgage-backed securities, estimated fair value 6,971,000  
Total held to maturity, amortized cost 804,601,000 $ 777,760,000
Total held to maturity, estimated fair value 754,765,403 731,659,323
Available for sale    
Due in one year or less, amortized cost 4,496,000  
Due in one year or less, estimated fair value 4,491,000  
Due after one year through five years, amortized cost 30,727,000  
Due after one year through five years, estimated fair value 30,390,000  
Due after five years through ten years, amortized cost 107,204,000  
Due after five years through ten years, estimated fair value 104,584,000  
Due after ten years, amortized cost 59,904,000  
Due after ten years, estimated fair value 59,186,000  
Mortgage-backed securities, amortized cost 448,128,000  
Mortgage-backed securities, estimated fair value 437,869,000  
Total available for sale, amortized cost 650,458,942 650,370,011
Total available for sale, estimated fair value $ 636,519,616 $ 640,722,775