Annual report [Section 13 and 15(d), not S-K Item 405]

Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Parenthetical) (Detail)

v3.25.4
Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Parenthetical) (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Selling Expense [Member] | China [Member]      
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]      
Independent service providers service fees costs $ 135.8 $ 149.8 $ 165.0