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ACQUISITIONS AND DIVESTITURES - Consideration Transferred (Details) - Herb Chambers Dealerships $ in Millions	Jul. 21, 2025 USD ($)
Business Combination [Line Items]
Aggregate purchase price	$ 1,783.9
New vehicle floor plan facility | Line of Credit
Business Combination [Line Items]
Aggregate purchase price	292.0
Used vehicle floor plan facility | Line of Credit
Business Combination [Line Items]
Aggregate purchase price	300.0
Revolving credit facility | Line of Credit
Business Combination [Line Items]
Aggregate purchase price	645.4
Real estate facility | Line of Credit
Business Combination [Line Items]
Aggregate purchase price	$ 546.5

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