Commitments and Contingent Liabilities (Details) - USD ($) $ in Millions	Oct. 15, 2026	Sep. 30, 2026
Other Commitments [Line Items]
Aggregate rent currently guaranteed by the Company		$ 102.0
Letters of credit outstanding		15.0
Bank guarantees		28.2
Surety bonds posted		$ 22.3
Penske Automotive Group, Inc. \| Subsequent Event
Other Commitments [Line Items]
Termination fee	$ 383.0

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 55
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477548/944-605-55-15

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 55
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477548/944-605-55-12

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant