CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 302.6	$ 375.9	$ 602.2	$ 745.4
Other comprehensive income (loss):
Foreign currency translation adjustment	33.4	(120.3)	51.7	(148.8)
Other adjustments to comprehensive income, net	3.4	5.7	8.2	4.5
Other comprehensive income (loss), net of tax	36.8	(114.6)	59.9	(144.3)
Comprehensive income	339.4	261.3	662.1	601.1
Less: Comprehensive income attributable to non-controlling interests	1.9	1.1	3.5	2.3
Comprehensive income attributable to Penske Automotive Group common stockholders	$ 337.5	$ 260.2	$ 658.6	$ 598.8