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Product Support Liabilities - Additional Information (Detail) $ in Millions | 9 Months Ended
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Sep. 30, 2025 USD ($)
Product Warranty Liability [Line Items] |
Deferred revenue on extended warranties and R&M recognize, in 2025 | $ 128.8
Deferred revenue on extended warranties and R&M recognize, in 2026 | 447.0
Deferred revenue on extended warranties and R&M recognize, in 2027 | 357.3
Deferred revenue on extended warranties and R&M recognize, in 2028 | 252.1
Deferred revenue on extended warranties and R&M recognize, in 2029 | 151.5
Deferred revenue on extended warranties and R&M recognize, thereafter | $ 76.0
Truck, Parts and Other |
Product Warranty Liability [Line Items] |
Standard product warranty, description | The Company generally offers one year warranties covering most of its vehicles and related aftermarket parts. For vehicles equipped with engines manufactured by PACCAR, the Company generally offers two year warranties on the engine.
Standard product warranty, term | 1 year
Extended product warranty, description | Optional extended warranty and R&M contracts can be purchased for periods which generally range up to five years.
Truck, Parts and Other | Maximum |
Product Warranty Liability [Line Items] |
Extended product warranty, term | 5 years
Truck, Parts and Other | Engines manufactured by PACCAR |
Product Warranty Liability [Line Items] |
Standard product warranty, term | 2 years

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- Definition Describes the nature of the extended product warranties, which generally require additional fees to be paid by the buyer, and other guarantee contracts excluded from the initial recognition and initial measurement requirements. Does not include disclosures for standard product warranties, which typically have substantially shorter periods of time or provide less coverage, or both. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
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