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 | 6 Months Ended | ||||||||
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Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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Revenues from External Customers and Long-Lived Assets [Line Items] | ||||||||||
Total royalty overrides and service fees to China independent service providers | [1],[2],[3] | $ 445.9 | $ 456.4 | $ 879.3 | $ 908.4 | |||||
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] | 405.9 | 414.8 | 807.1 | 829.3 | |||||
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] | $ 40.0 | $ 41.6 | $ 72.2 | $ 79.1 | |||||
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