v3.26.1
Segment Information - Summary of Segment Information Reconciled to Consolidated Statements of Income (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Revenue:    
Gross premiums earned $ 326,206 [1] $ 300,383 [2]
Premiums ceded (104,055) (99,635)
Net premiums earned 222,151 200,748
Net income from investment portfolio 16,137 13,012
Policy fee income 1,576 2,229
Other 3,018 444
Total revenue 242,882 216,433
Expenses:    
Losses and loss adjustment expenses 65,600 59,291
Amortization of deferred policy acquisition costs 29,889 26,311
Other policy acquisition expenses 1,881 976
Stock-based compensation expense 3,359 2,972
Interest expense 923 3,384
Depreciation and amortization 1,449 1,646
Personnel and other operating expenses 24,397 21,514
Total expenses 127,498 116,094
Income before income taxes 115,384 [3] 100,339 [4]
Gross premiums written 280,692 289,246
Insurance Operation [Member]    
Revenue:    
Gross premiums earned   1,199
Reciprocal Exchange Operation [Member]    
Revenue:    
Gross premiums earned 1,402  
Operating Segments [Member] | Insurance Operation [Member]    
Revenue:    
Gross premiums earned 291,151 [1] 282,135 [2]
Premiums ceded (96,520) (93,427)
Net premiums earned 194,631 188,708
Net income from investment portfolio 11,935 10,859
Policy fee income 1,465 2,229
Other 3,839 2,746
Total revenue 211,870 204,542
Expenses:    
Losses and loss adjustment expenses 73,562 70,815
Amortization of deferred policy acquisition costs 27,839 25,244
Other policy acquisition expenses 18,924 18,333
Stock-based compensation expense 680 473
Interest expense 0 0
Depreciation and amortization 421 611
Personnel and other operating expenses 10,805 11,244
Total expenses 132,231 126,720
Income before income taxes 79,639 [3] 77,822 [4]
Total revenue from non-affiliates 207,420 [5] 201,050 [6]
Gross premiums written 253,364 259,529
Operating Segments [Member] | Exzeo Group Inc    
Revenue:    
Gross premiums earned 0 [1] 0 [2]
Premiums ceded 0 0
Net premiums earned 0 0
Net income from investment portfolio 2,512 398
Policy fee income 0 0
Other 55,533 52,407
Total revenue 58,045 52,805
Expenses:    
Losses and loss adjustment expenses 0 0
Amortization of deferred policy acquisition costs 0 0
Other policy acquisition expenses 12,173 12,667
Stock-based compensation expense 739 723
Interest expense 0 0
Depreciation and amortization 730 708
Personnel and other operating expenses 16,816 14,512
Total expenses 30,458 28,610
Income before income taxes 27,587 [3] 24,195 [4]
Total revenue from non-affiliates 4,724 [5] 398 [6]
Gross premiums written 0 0
Operating Segments [Member] | Reciprocal Exchange Operation [Member]    
Revenue:    
Gross premiums earned 36,457 [1] 19,447 [2]
Premiums ceded (8,937) (7,407)
Net premiums earned 27,520 12,040
Net income from investment portfolio 1,267 780
Policy fee income 0 0
Other (268) (9)
Total revenue 28,519 12,811
Expenses:    
Losses and loss adjustment expenses 8,928 2,772
Amortization of deferred policy acquisition costs 2,050 1,067
Other policy acquisition expenses 4,644 2,521
Stock-based compensation expense 0 0
Interest expense 1,110 1,108
Depreciation and amortization 0 0
Personnel and other operating expenses 312 255
Total expenses 17,044 7,723
Income before income taxes 11,475 [3] 5,088 [4]
Total revenue from non-affiliates 29,921 [5] 14,010 [6]
Gross premiums written 27,328 29,717
Operating Segments [Member] | Real Estate Operations [Member]    
Revenue:    
Gross premiums earned 0 [1],[7] 0 [2],[8]
Premiums ceded 0 [7] 0 [8]
Net premiums earned 0 [7] 0 [8]
Net income from investment portfolio 0 [7] 0 [8]
Policy fee income 0 [7] 0 [8]
Other 4,196 [7] 2,840 [8]
Total revenue 4,196 [7] 2,840 [8]
Expenses:    
Losses and loss adjustment expenses 0 [7] 0 [8]
Amortization of deferred policy acquisition costs 0 [7] 0 [8]
Other policy acquisition expenses 0 [7] 0 [8]
Stock-based compensation expense 0 [7] 0 [8]
Interest expense 456 [7] 216 [8]
Depreciation and amortization 857 [7] 510 [8]
Personnel and other operating expenses 2,515 [7] 1,733 [8]
Total expenses 3,828 [7] 2,459 [8]
Income before income taxes 368 [3],[7] 381 [4],[8]
Total revenue from non-affiliates 3,331 [5],[7] 1,975 [6],[8]
Operating Segments [Member] | Corporate and Other [Member]    
Revenue:    
Gross premiums earned 0 [1],[9] 0 [2],[10]
Premiums ceded 0 [9] 0 [10]
Net premiums earned 0 [9] 0 [10]
Net income from investment portfolio 1,078 [9] 1,765 [10]
Policy fee income 395 [9] 0 [10]
Other 5,184 [9] 3,655 [10]
Total revenue 6,657 [9] 5,420 [10]
Expenses:    
Losses and loss adjustment expenses 0 [9] 0 [10]
Amortization of deferred policy acquisition costs 0 [9] 0 [10]
Other policy acquisition expenses 2,846 [9] 2,128 [10]
Stock-based compensation expense 1,940 [9] 1,776 [10]
Interest expense 467 [9] 3,168 [10]
Depreciation and amortization 163 [9] 191 [10]
Personnel and other operating expenses 4,940 [9] 4,155 [10]
Total expenses 10,356 [9] 11,418 [10]
Income before income taxes (3,699) [3],[9] (5,998) [4],[10]
Total revenue from non-affiliates 532 [5],[9] 838 [6],[10]
Intersegment Eliminations [Member]    
Revenue:    
Gross premiums earned (1,402) [1] (1,199) [2]
Premiums ceded 1,402 1,199
Net premiums earned 0 0
Net income from investment portfolio (655) (790)
Policy fee income (284) 0
Other (65,466) (61,195)
Total revenue (66,405) (61,985)
Expenses:    
Losses and loss adjustment expenses (16,890) (14,296)
Amortization of deferred policy acquisition costs 0 0
Other policy acquisition expenses (36,706) (34,673)
Stock-based compensation expense 0 0
Interest expense (1,110) (1,108)
Depreciation and amortization (722) (374)
Personnel and other operating expenses (10,991) (10,385)
Total expenses (66,419) (60,836)
Income before income taxes $ 14 [3] $ (1,149) [4]
[1] Gross premiums earned under Insurance Operations includes $1,402 earned from Reciprocal Exchange Operations.
[2] Gross premiums earned under Insurance Operations include $1,199 earned from the Reciprocal Exchange Operations.
[3] The income (loss) before income taxes in the reclassification/elimination column is attributable to intercompany transactions among operating segments. The Insurance Operations and the Reciprocal Exchange Operations record service fee expenses based on earned premiums or other appropriate measures, while Exzeo and the AIF operations recognize service fee revenue according to revenue recognition standards. Although both service fee expenses and revenue are fully eliminated on consolidation, they do not completely offset each other in this presentation due to the different methods of recognition.
[4] The income (loss) before income taxes in the reclassification/elimination column is attributable to intercompany transactions among operating segments. The Insurance Operations and the Reciprocal Exchange Operations record service fee expenses based on earned premiums or other appropriate measures, while Exzeo and the AIF operations recognize service fee revenue according to revenue recognition standards. Although both service fee expenses and revenue are fully eliminated on consolidation, they do not completely offset each other in this presentation due to the different methods of recognition.
[5] Represents amounts before reclassification of certain revenue and expenses to conform with an insurance company’s presentation.
[6] Represents amounts before reclassification of certain revenue and expenses to conform with an insurance company’s presentation.
[7] Other revenue under Real Estate primarily consisted of rental income from investment properties.
[8] Other revenue under Real Estate primarily consisted of rental income from investment properties.
[9] Other revenue under Corporate and Other primarily consisted of management fees for attorney-in-fact services.
[10] Other revenue under Corporate and Other primarily consisted of management fees for attorney-in-fact services.