CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 245.0	$ 216.2
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	55.3	(36.6)
Other adjustments to comprehensive income, net of tax	(0.3)	3.6
Other comprehensive income (loss), net of tax:	55.0	(33.0)
Comprehensive income	300.0	183.2
Less: Comprehensive income attributable to non-controlling interests	0.8	1.2
Comprehensive income attributable to Penske Automotive Group common stockholders	$ 299.2	$ 182.0