CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 229.6	$ 343.6
Other comprehensive income, net of tax:
Foreign currency translation adjustment	13.1	4.0
Gain on cash flow hedges, net of tax expense of none and ($1.4) respectively	0.0	3.9
Total other comprehensive income, net of tax	13.1	7.9
Comprehensive income	242.7	351.5
Comprehensive income attributable to non-controlling interest	(0.7)	(0.5)
Comprehensive income attributable to redeemable non-controlling interest	(0.2)	(0.9)
Comprehensive income attributable to Lithia Motors, Inc.	$ 241.8	$ 350.1