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Restructuring Activities - Schedule of Costs Related to the Technology Realignment Program (Detail) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2025 USD ($)
Restructuring Cost and Reserve [Line Items] |  |
Total cost of realignment program | $ 0.6 | $ 4.2
Cumulative cost incurred | 4.2 | 4.2
Professional Fees [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Total cost of realignment program | 0.0 | 0.0
Cumulative cost incurred | 0.0 | 0.0
Retention and Separation [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Total cost of realignment program | 0.6 | 4.2
Cumulative cost incurred | 4.2 | 4.2
Other [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Total cost of realignment program | 0.0 | 0.0
Cumulative cost incurred | $ 0.0 | $ 0.0

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