v3.26.1
CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Common shares, par value per share (in dollars per share) $ 1 $ 1
Common shares, authorized shares (in shares) 50,000,000 50,000,000
Common shares, issued shares (in shares) 2,476,670 2,479,677
Common shares, outstanding shares (in shares) 2,476,670 2,479,677
P&C Insurance and Reinsurance (Ark/WM Outrigger) | Operating Segments    
Restricted cash $ 3.0 $ 1.1
Specialty Insurance Distribution (Distinguished) | Operating Segments    
Restricted cash $ 0.1 $ 0.1