v3.26.1
Segment Information (Schedule of Reportable Segment Performance Significant Expenses and Assets) (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Mar. 31, 2025
Segment Reporting Information [Line Items]            
Consolidated revenue $ 2,117.3 $ 1,841.3 $ 3,955.3 $ 3,423.6    
Less:            
Personnel costs 614.3 571.1 1,182.5 1,077.8    
Premiums retained by agents 658.6 573.5 1,260.8 1,099.0    
Other operating expenses 352.1 309.4 662.5 587.7    
Provision for policy losses 87.3 81.9 165.1 152.0    
Depreciation and amortization 53.6 53.0 108.2 105.5    
Premium taxes 21.8 19.2 42.9 36.6    
Interest 45.7 38.0 87.6 73.2    
Segment income (loss) before income taxes 283.9 195.2 445.7 291.8    
Total assets 18,941.0   18,941.0   $ 16,228.8  
Operating Segments            
Segment Reporting Information [Line Items]            
Consolidated revenue 2,117.3 1,841.3 3,955.3 3,423.6    
Less:            
Personnel costs 614.3 [1] 571.1 [2] 1,182.5 [3] 1,077.8 [4]    
Premiums retained by agents 658.6 [1] 573.5 [2] 1,260.8 [3] 1,099.0 [4]    
Other operating expenses 352.1 [1],[5] 309.4 [2],[6] 662.5 [3],[7] 587.7 [4],[8]    
Provision for policy losses 87.3 [1] 81.9 [2] 165.1 [3] 152.0 [4]    
Depreciation and amortization 53.6 [1] 53.0 [2] 108.2 [3] 105.5 [4]    
Premium taxes 21.8 [1] 19.2 [2] 42.9 [3] 36.6 [4]    
Interest 45.7 [1] 38.0 [2] 87.6 [3] 73.2 [4]    
Segment income (loss) before income taxes 283.9 [1] 195.2 [2] 445.7 [3] 291.8 [4]    
Total assets 18,941.0 16,273.9 18,941.0 16,273.9    
Segment capital expenditures 41.3 53.5 81.4 99.1    
Operating Segments | Title Insurance and Services            
Segment Reporting Information [Line Items]            
Consolidated revenue 2,014.6 1,722.9 3,746.9 3,207.3    
Less:            
Personnel costs 572.5 [1] 523.0 [2] 1,118.9 [3] 1,007.8 [4]    
Premiums retained by agents 658.6 [1] 573.5 [2] 1,260.8 [3] 1,099.0 [4]    
Other operating expenses 319.0 [1],[5] 277.8 [2],[6] 596.4 [3],[7] 524.2 [4],[8]    
Provision for policy losses 45.3 [1] 39.5 [2] 84.8 [3] 72.9 [4]    
Depreciation and amortization 52.3 [1] 51.6 [2] 105.4 [3] 102.8 [4]    
Premium taxes 20.6 [1] 18.0 [2] 40.6 [3] 34.3 [4]    
Interest 30.4 [1] 22.8 [2] 57.1 [3] 42.8 [4]    
Segment income (loss) before income taxes $ 315.9 [1] $ 216.7 [2] $ 482.9 [3] $ 323.5 [4]    
Pretax margin 15.70% [9] 12.60% [10] 12.90% [11] 10.10% [12]    
Total assets $ 17,973.9 $ 15,342.7 $ 17,973.9 $ 15,342.7    
Segment capital expenditures 39.9 51.6 78.5 96.0    
Operating Segments | Home Warranty            
Segment Reporting Information [Line Items]            
Consolidated revenue 113.8 110.2 223.6 218.0    
Less:            
Personnel costs 22.0 [1] 20.7 [2] 43.0 [3] 41.2 [4]    
Premiums retained by agents 0.0 [1] 0.0 [2] 0.0 [3] 0.0 [4]    
Other operating expenses 23.3 [1],[5] 21.9 [2],[6] 46.6 [3],[7] 44.4 [4],[8]    
Provision for policy losses 41.7 [1] 42.8 [2] 78.9 [3] 80.5 [4]    
Depreciation and amortization 1.4 [1] 1.3 [2] 2.8 [3] 2.6 [4]    
Premium taxes 1.2 [1] 1.2 [2] 2.3 [3] 2.3 [4]    
Interest 0.0 [1] 0.0 [2] 0.0 [3] 0.0 [4]    
Segment income (loss) before income taxes $ 24.2 [1] $ 22.3 [2] $ 50.0 [3] $ 47.0 [4]    
Pretax margin 21.30% [9] 20.20% [10] 22.40% [11] 21.60% [12]    
Total assets $ 435.5 $ 412.4 $ 435.5 $ 412.4    
Segment capital expenditures 1.4 1.9 2.9 3.1    
Operating Segments | Corporate            
Segment Reporting Information [Line Items]            
Consolidated revenue (11.0) 8.3 (15.1) (1.6)    
Less:            
Personnel costs 19.9 [1] 27.3 [2] 20.6 [3] 28.8 [4]    
Premiums retained by agents 0.0 [1] 0.0 [2] 0.0 [3] 0.0 [4]    
Other operating expenses 9.6 [1],[5] 9.7 [2],[6] 19.5 [3],[7] 19.1 [4],[8]    
Provision for policy losses 0.4 [1] (0.2) [2] 1.5 [3] (1.3) [4]    
Depreciation and amortization 0.1 [1] 0.1 [2] 0.1 [3] 0.1 [4]    
Premium taxes 0.0 [1] 0.0 [2] 0.0 [3] 0.0 [4]    
Interest 15.2 [1] 15.2 [2] 30.4 [3] 30.4 [4]    
Segment income (loss) before income taxes (56.2) [1] (43.8) [2] (87.2) [3] (78.7) [4]    
Total assets 795.2 681.7 795.2 681.7    
Eliminations            
Segment Reporting Information [Line Items]            
Consolidated revenue (0.1) (0.1) (0.1) (0.1)    
Less:            
Personnel costs (0.1) [1] 0.1 [2] 0.0 [3] 0.0 [4]    
Premiums retained by agents 0.0 [1] 0.0 [2] 0.0 [3] 0.0 [4]    
Other operating expenses 0.2 [1],[5] 0.0 [2],[6] 0.0 [3],[7] 0.0 [4],[8]    
Provision for policy losses (0.1) [1] (0.2) [2] (0.1) [3] (0.1) [4]    
Depreciation and amortization (0.2) [1] 0.0 [2] (0.1) [3] 0.0 [4]    
Premium taxes 0.0 [1] 0.0 [2] 0.0 [3] 0.0 [4]    
Interest 0.1 [1] 0.0 [2] 0.1 [3] 0.0 [4]    
Segment income (loss) before income taxes 0.0 [1] 0.0 [2] 0.0 [3] 0.0 [4]    
Total assets $ (263.6) [13] $ (162.9) [14] $ (263.6) [13] $ (162.9) [14]   $ (162.9)
[1] The significant expense categories and amounts align with segment level information that is regularly provided to the chief operating decision maker.
[2] The significant expense categories and amounts align with segment level information that is regularly provided to the chief operating decision maker.
[3] The significant expense categories and amounts align with segment level information that is regularly provided to the chief operating decision maker.
[4] The significant expense categories and amounts align with segment level information that is regularly provided to the chief operating decision maker.
[5] Other operating expenses for each segment primarily include the following:

Title insurance and services - title and data search expenses, office and occupancy expenses and software expense.

Home warranty - advertising expense, office and occupancy expenses, software expense, delivery and storage expenses.

Corporate - employee benefit expense and certain overhead expenses.
[6] Other operating expenses for each segment primarily include the following:

Title insurance and services - title and data search expenses, office and occupancy expenses and software expense.

Home warranty - advertising expense, office and occupancy expenses, software expense, delivery and storage expenses.

Corporate - employee benefit expense and certain overhead expenses.
[7] Other operating expenses for each segment primarily include the following:

Title insurance and services - title and data search expenses, office and occupancy expenses and software expense.

Home warranty - advertising expense, office and occupancy expenses, software expense, delivery and storage expenses.

Corporate - employee benefit expense and certain overhead expenses.
[8] Other operating expenses for each segment primarily include the following:

Title insurance and services - title and data search expenses, office and occupancy expenses and software expense.

Home warranty - advertising expense, office and occupancy expenses, software expense, delivery and storage expenses.

Corporate - employee benefit expense and certain overhead expenses.
[9] Pretax margin for the corporate segment is not regularly provided to the chief operating decision maker to assess performance.
[10] Pretax margin for the corporate segment is not regularly provided to the chief operating decision maker to assess performance.
[11] Pretax margin for the corporate segment is not regularly provided to the chief operating decision maker to assess performance.
[12] Pretax margin for the corporate segment is not regularly provided to the chief operating decision maker to assess performance.
[13] Elimination of intercompany asset balances:

Holding company cash balances also included in the title insurance and services segment

 

$

(259.3

)

Home warranty segment cash balances also included in the title insurance and services segment

 

 

(4.3

)

 

 

$

(263.6

)

 
[14] Elimination of intercompany asset balances:

Holding company cash balances also included in the title insurance and services segment

 

$

(139.9

)

Home warranty segment cash balances also included in the title insurance and services segment

 

 

(3.5

)

Holding company receivable from a subsidiary within the title insurance and services segment

 

 

(19.5

)

 

 

$

(162.9

)