Sales and Revenues - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Entity Wide Information Revenue From External Customer [Line Items]
Payment to acquire commitment value			$ 649,900,000
Payment to acquire commitment related to lease value			78,000,000
Financial Services
Entity Wide Information Revenue From External Customer [Line Items]
Total Operating lease revenue	$ 163,700,000	$ 180,600,000	501,200,000	$ 564,100,000
Financing receivable, recorded investment, 90 days past due and still accruing	0		0		$ 0
Trucks | Truck Sales
Entity Wide Information Revenue From External Customer [Line Items]
Total Operating lease revenue	7,700,000	$ 11,700,000	25,600,000	$ 47,100,000
Deferred revenue	17,600,000		17,600,000
Deferred revenue recognize, in 2024	3,500,000		3,500,000
Deferred revenue recognize, in 2025	7,600,000		7,600,000
Deferred revenue recognize, in 2026	4,000,000		4,000,000
Deferred revenue recognize, in 2027	1,800,000		1,800,000
Deferred revenue recognize, in 2028	$ 700,000		$ 700,000
Minimum
Entity Wide Information Revenue From External Customer [Line Items]
Lease and guarantee periods (in years)			3 years
Minimum | Financial Services
Entity Wide Information Revenue From External Customer [Line Items]
Finance leases, lease term			3 years
Operating lease term	3 years		3 years
Maximum
Entity Wide Information Revenue From External Customer [Line Items]
Lease and guarantee periods (in years)			5 years
Warranty period			5 years
Maximum | Financial Services
Entity Wide Information Revenue From External Customer [Line Items]
Finance leases, lease term			5 years
Operating lease term	5 years		5 years