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Schedule III - Balance Sheet Captions (Detail) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Supplementary Insurance Information By Segment [Line Items] |  |
Deferred policy acquisition costs | $ 21.7 | $ 20.2
Claims reserves | 1,193.4 | 1,282.4
Deferred revenues | 210.4 | 196.8
Title Insurance and Services |  |
Supplementary Insurance Information By Segment [Line Items] |  |
Deferred policy acquisition costs | 0.0 | 0.0
Claims reserves | 1,164.7 | 1,242.0
Deferred revenues | 4.0 | 3.9
Home Warranty |  |
Supplementary Insurance Information By Segment [Line Items] |  |
Deferred policy acquisition costs | 21.7 | 20.2
Claims reserves | 15.4 | 15.7
Deferred revenues | 206.4 | 192.9
Corporate and Eliminations |  |
Supplementary Insurance Information By Segment [Line Items] |  |
Deferred policy acquisition costs | 0.0 | 0.0
Claims reserves | 13.3 | 24.7
Deferred revenues | $ 0.0 | $ 0.0

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