v3.25.4
Life Insurance Liabilities (Present Value Expected Future Policy Benefits) (Details) - USD ($)
$ in Thousands
 9 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Liability For Claims And Claims Adjustment Expense $ 930,764 $ 829,992    
Moving and Storage Consolidations [Member]        
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Liability For Claims And Claims Adjustment Expense 440,597 313,439    
Property and Casualty Insurance [Member]        
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Liability For Claims And Claims Adjustment Expense 124,463 129,530    
Life Insurance Segment [Member]        
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Balance, beginning of year 182,658 205,389    
Beginning balance at original discount rate 185,508 204,306    
Effect of actual variances from expected experience     $ 1,591 $ 4,279
Adjusted beginning of year balance     $ 181,324 $ 202,073
Issuances 3,057 7,353    
Interest accrual 17,739 18,888    
Net premium collected 42,413 39,689    
Ending balance at original discount rate 463,994 496,386    
Effect of changes in discount rate assumptions (AOCI) 5,426 13,778    
Balance, end of the year 469,420 510,164    
End of period, LFPB, net 301,719 317,153    
Life Insurance Segment [Member] | Oxford        
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Liability For Claims And Claims Adjustment Expense 365,704 387,023    
Payout annuities and market risk benefits        
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Liability For Future Policy Benefits 22,637 24,752    
Health Insurance Product Line [Member]        
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Liability For Future Policy Benefits 10,042 11,598    
Life and annuity claims in course of settlement and claims incurred but not yet reported / Reinsurance losses payable        
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Liability For Future Policy Benefits 23,222 24,527    
Life DPL / Other life and health        
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Liability For Future Policy Benefits 8,085 8,941    
LFPB flooring effect        
Liability For Future Policy Benefit Expected Future Policy Benefit [Roll Forward]        
Liability For Future Policy Benefits $ 1 $ 52