v3.25.2
Basis of Presentation - Additional Information (Detail) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]    
Contributions to joint venture $ 44.7 $ 51.7
Equity Method Investments $ 233.3  
PACCAR    
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]    
Equity method investment, ownership percentage 30.00%  
Maximum    
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]    
Equity method investment Contribution $ 830.0