CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 299.6	$ 369.5
Other comprehensive income (loss):
Foreign currency translation adjustment	18.3	(28.5)
Other adjustments to comprehensive income, net	4.8	(1.2)
Other comprehensive income (loss), net of tax	23.1	(29.7)
Comprehensive income	322.7	339.8
Less: Comprehensive income attributable to non-controlling interests	1.6	1.2
Comprehensive income attributable to Penske Automotive Group common stockholders	$ 321.1	$ 338.6