Quarterly report [Sections 13 or 15(d)]

Segment Information - Reconciliation of Royalty Overrides and Service Fees to China Independent Service Providers From Segments to Consolidated (Detail)

v3.25.3
Segment Information - Reconciliation of Royalty Overrides and Service Fees to China Independent Service Providers From Segments to Consolidated (Detail) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]        
Total royalty overrides and service fees to China independent service providers [1],[2],[3] $ 450.7 $ 443.8 $ 1,330.0 $ 1,352.2
Primary Reporting Segment [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Total royalty overrides and service fees to China independent service providers [1],[2],[3] 415.7 404.7 1,222.8 1,234.0
China [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Total royalty overrides and service fees to China independent service providers [1],[2],[3] $ 35.0 $ 39.1 $ 107.2 $ 118.2
[1] As a result of adopting ASU 2023-07 during the fourth quarter of 2024, the Company has expanded and updated its disclosures for the current year and prior year periods as described in Note 2, Basis of Presentation, to the Consolidated Financial Statements included in the 2024 10-K.
[2] Contribution margin consists of net sales less cost of sales, Royalty overrides, and service fees to our independent service providers in China. For the China segment, contribution margin includes the portion of service fees to China independent service providers that are currently recorded in selling, general, and administrative expenses within the Company’s accompanying condensed consolidated statements of income, which totaled $34.6 million and $38.3 million for the three months ended September 30, 2025 and 2024, respectively, and $105.6 million and $116.2 million for the nine months ended September 30, 2025 and 2024, respectively.
[3] The significant expense categories and amounts align with the segment-level information that is regularly provided to the CODM.