CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025
Operating Activities:
Net income	$ 717.3	$ 751.2
Adjustments to reconcile net income to net cash from operating activities:
Depreciation	135.7	127.5
Earnings of equity method investments, net of distributions	(117.2)	(101.9)
Deferred income taxes	22.9	34.6
Stock-based compensation	22.5	24.3
Gain on sale of dealerships	(90.9)	(52.3)
Changes in operating assets and liabilities:
Accounts receivable	25.6	46.1
Inventories	(244.2)	94.7
Other current assets	(25.4)	(7.6)
Floor plan notes payable	110.8	(137.6)
Accounts payable and accrued expenses	108.7	85.6
Other	58.8	34.8
Net cash provided by operating activities	724.6	899.4
Investing Activities:
Purchases of property, equipment, and improvements	(217.1)	(239.3)
Proceeds from sale of dealerships	151.7	80.1
Proceeds from sale of property and equipment	30.2	25.8
Proceeds from sale of equity method investment	0.0	16.0
Acquisitions net, including repayment of sellers' floor plan notes payable of $15.0 and $0.0, respectively	(669.7)	(21.5)
Other	(3.1)	9.8
Net cash used in investing activities	(708.0)	(129.1)
Financing Activities:
Proceeds from borrowings under revolving U.S. credit agreement and mortgage facilities	3,490.3	4,319.1
Repayments under revolving U.S. credit agreement and mortgage facilities	(3,142.9)	(4,051.4)
Repayment of 3.50% senior subordinated notes	0.0	(550.0)
Net cash repayments of other debt	(104.2)	(32.0)
Repayments of related party promissory note	(39.0)	0.0
Net borrowings (repayments) of floor plan notes payable — non-trade	109.4	(30.3)
Repurchases of common stock	(26.3)	(119.0)
Payments of tax withholding for stock-based compensation	(16.2)	(22.6)
Dividends	(281.0)	(252.7)
PMG distributions to partners	0.0	(32.4)
Payment of debt issuance costs	(1.4)	(0.6)
Other	(1.5)	0.0
Net cash used in financing activities	(12.8)	(771.9)
Effect of exchange rate changes on cash and cash equivalents	(0.2)	6.7
Net change in cash and cash equivalents	3.6	5.1
Cash and cash equivalents, beginning of period	64.7	83.6
Cash and cash equivalents, end of period	68.3	88.7
Cash paid for:
Interest	204.2	199.2
Income taxes	$ 214.0	$ 217.6