v3.25.1
Segment Information - Summary of Segment Assets Reconciled to Consolidated Balance Sheet (Detail) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Segment Reporting Information [Line Items]    
Total assets $ 2,306,668 $ 2,230,213
Consolidation and Elimination [Member]    
Segment Reporting Information [Line Items]    
Total assets (174,983) (142,739)
Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total assets 2,306,668 2,230,213
Insurance Operations [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total assets 1,906,645 1,905,878
Exzeo Group [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total assets 135,824 89,441
Insurance Operations [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total assets 125,383 105,556
Real Estate Operations [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total assets 98,731 96,795
Corporate and Other [Member] | Operating Segments [Member]    
Segment Reporting Information [Line Items]    
Total assets $ 215,068 $ 175,282