v3.26.1
Earnings Per Share - Summary of Numerator and Denominator of Basic and Fully Diluted Earnings Per Common Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Net income $ 85,043 $ 74,230
Less: Net income attributable to noncontrolling interests (11,636) (4,546)
Net income attributable to HCI 73,407 69,684
Less: Income attributable to participating securities (3,255) (3,103)
Basic Earnings Per Share:    
Income attributable to common stockholders $ 70,152 $ 66,581
Income attributable to common stockholders, Shares (Denominator) [1] 12,490,000 10,286,000
Basic earnings per share $ 5.62 $ 6.47
Diluted Earnings Per Share:    
Net impact from reallocation of undistributed earnings to participating securities $ 78 $ 0
Diluted Earnings Per Share:    
Income attributable to common stockholders $ 70,230 $ 68,454
Income attributable to common stockholders (Denominator) [1] 12,896,000 12,785,000
Diluted earnings per share $ 5.45 $ 5.35
Warrant [Member]    
Diluted Earnings Per Share:    
Dilutive Securities, Shares (Denominator) [1] 8,000 7,000
Convertible Senior Notes [Member]    
Diluted Earnings Per Share:    
Interest on Convertible Debt, Net of Tax   $ 1,873
Dilutive Securities, Shares (Denominator)   2,142
Employee Stock Option    
Diluted Earnings Per Share:    
Dilutive Securities, Shares (Denominator) [1] 398,000 350,000
[1] Shares in thousands.

 

For the periods presented, all potentially dilutive securities for Exzeo were excluded from Exzeo's diluted earnings per share computation because their (i) effect would be anti-dilutive, (ii) exercise prices were out-of-the-money, or (iii) contingent exercise conditions were unsatisfied.