Basis of Presentation - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Contributions to joint venture	$ 44.7
Equity Method Investments	237.6
Maximum
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Equity method investment Contribution	$ 830.0
PACCAR
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Equity method investment, ownership percentage	30.00%