CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 216.2	$ 299.6
Other comprehensive income, net of tax:
Foreign currency translation adjustment	(36.6)	18.3
Other adjustments to comprehensive income	3.6	4.8
Other comprehensive income, net of tax	(33.0)	23.1
Comprehensive income	183.2	322.7
Less: Comprehensive income attributable to non-controlling interests	1.2	1.6
Comprehensive income attributable to Penske Automotive Group common stockholders	$ 182.0	$ 321.1