v3.26.1
Reserves for Future Policy Benefits and Claims Payable - Schedule of Weighted Average Duration, Closed Block Life (Details)
Mar. 31, 2026
Dec. 31, 2025
Closed Block Life    
Liability for Future Policy Benefit, Activity [Line Items]    
Weighted average duration (years) 8 years 8 months 12 days 8 years 8 months 12 days