Related Party Transactions - Joint ventures (Details)	Dec. 31, 2022
Lexus, Toyota, Volkswagen | Frankfurt, Germany
Related party transactions
Penske transportation solutions, ownership percentage	50.00%
BMW, MINI | Barcelona, Spain
Related party transactions
Penske transportation solutions, ownership percentage	50.00%
PTL
Related party transactions
Penske transportation solutions, ownership percentage	28.90%
Penske Commercial Leasing Australia
Related party transactions
Penske transportation solutions, ownership percentage	28.00%
Audi, Mercedes-Benz, Sprinter, Porsche | Fairfield, Connecticut
Related party transactions
Ownership percentage of consolidated entity	80.00%
Mercedes-Benz | Greenwich, Connecticut
Related party transactions
Ownership percentage of consolidated entity	80.00%
BMW, MINI, Maserati, Porsche, Audi, Jaguar, Land Rover, Volvo, Mercedes-Benz, smart, Lamborghini | Northern Italy
Related party transactions
Ownership percentage of consolidated entity	84.10%