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Schedule III - Income Statement Captions (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Supplementary Insurance Information By Segment [Line Items] |  |  |  |
Premiums and escrow fees |  | $ 5,007.9 | $ 4,701.4 | $ 6,632.4
Net investment income (1) | [1] | 159.4 | 363.6 | (175.7)
Loss provision |  | 320.0 | 336.3 | 486.3
Amortization of deferred policy acquisition costs (credits) |  | (1.4) | (0.2) | 4.3
Other operating expenses |  | 1,113.4 | 1,067.0 | 1,272.3
Premiums written |  | 411.3 | 398.4 | 393.9
Operating Segments | Title Insurance and Services |  |  |  |
Supplementary Insurance Information By Segment [Line Items] |  |  |  |
Premiums and escrow fees |  | 4,610.2 | 4,305.7 | 6,210.5
Net investment income (1) | [1] | 188.9 | 502.0 | 209.3
Loss provision |  | 138.3 | 139.9 | 248.4
Amortization of deferred policy acquisition costs (credits) |  | 0.0 | 0.0 | 0.0
Other operating expenses |  | 992.5 | 937.7 | 1,155.4
Premiums written |  | 0.0 | 0.0 | 0.0
Operating Segments | Home Warranty |  |  |  |
Supplementary Insurance Information By Segment [Line Items] |  |  |  |
Premiums and escrow fees |  | 397.8 | 395.6 | 413.1
Net investment income (1) | [1] | 5.4 | (0.1) | (7.4)
Loss provision |  | 184.4 | 193.1 | 211.8
Amortization of deferred policy acquisition costs (credits) |  | (1.4) | (0.2) | 1.9
Other operating expenses |  | 86.0 | 82.8 | 75.7
Premiums written |  | 411.3 | 398.4 | 394.9
Operating Segments | Corporate and Eliminations |  |  |  |
Supplementary Insurance Information By Segment [Line Items] |  |  |  |
Premiums and escrow fees |  | (0.1) | 0.1 | 8.8
Net investment income (1) | [1] | (34.9) | (138.3) | (377.6)
Loss provision |  | (2.7) | 3.3 | 26.1
Amortization of deferred policy acquisition costs (credits) |  | 0.0 | 0.0 | 2.4
Other operating expenses |  | 34.9 | 46.5 | 41.2
Premiums written |  | $ 0.0 | $ 0.0 | $ (1.0)
[1] | Includes net investment income and net investment gains (losses).

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