v3.26.1
Fair Value Measurement of Assets and Liabilities - Schedule of Fair Value Measurement of Asset and Liabilities (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Derivatives Not Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term $ 1.7 $ 1.4
Foreign Exchange Forward Contracts [Member] | Derivatives Not Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term 5.9 4.0
Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total Assets 117.0 95.1
Contingent payments related to acquisitions 244.6 299.2
Total Liabilities 369.7 427.2
Fair Value, Measurements, Recurring [Member] | Fair Value Measurements at Reporting Date Using: Significant Other Observable Inputs (Level 2) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total Assets 117.0 95.1
Total Liabilities 125.1 128.0
Fair Value, Measurements, Recurring [Member] | Fair Value Measurements at Reporting Date Using: Significant Unobservable Inputs (Level 3) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Contingent payments related to acquisitions 244.6 299.2
Total Liabilities 244.6 299.2
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Forward Contracts [Member] | Derivatives Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term 56.2 41.4
Derivatives, current and long-term 0.7 4.8
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Forward Contracts [Member] | Derivatives Not Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term 5.9 4.0
Derivatives, current and long-term 1.7 1.4
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Forward Contracts [Member] | Fair Value Measurements at Reporting Date Using: Significant Other Observable Inputs (Level 2) [Member] | Derivatives Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term 56.2 41.4
Derivatives, current and long-term 0.7 4.8
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Forward Contracts [Member] | Fair Value Measurements at Reporting Date Using: Significant Other Observable Inputs (Level 2) [Member] | Derivatives Not Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term 5.9 4.0
Derivatives, current and long-term 1.7 1.4
Fair Value, Measurements, Recurring [Member] | Cross-currency Interest Rate Swaps [Member] | Derivatives Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term 54.9 49.7
Derivatives, current and long-term 2.9 9.4
Fair Value, Measurements, Recurring [Member] | Cross-currency Interest Rate Swaps [Member] | Fair Value Measurements at Reporting Date Using: Significant Other Observable Inputs (Level 2) [Member] | Derivatives Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term 54.9 49.7
Derivatives, current and long-term 2.9 9.4
Fair Value, Measurements, Recurring [Member] | Interest Rate Swaps [Member] | Derivatives Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term 119.8 112.4
Fair Value, Measurements, Recurring [Member] | Interest Rate Swaps [Member] | Fair Value Measurements at Reporting Date Using: Significant Other Observable Inputs (Level 2) [Member] | Derivatives Designated as Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives, current and long-term $ 119.8 $ 112.4