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ASSETS AND LIABILITIES HELD FOR SALE - Narrative (Details) $ in Millions	1 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($) franchise dealership property	Mar. 31, 2025 USD ($) dealership	Sep. 30, 2025 USD ($) franchise dealership property	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) franchise dealership property	Sep. 30, 2024 USD ($)	Oct. 29, 2025 franchise	Dec. 31, 2024 property franchise dealership
Long Lived Assets Held-for-sale [Line Items]
Asset impairments | $			$ 11.7	$ 0.0	$ 26.0	$ 135.4
Held-for-sale | Franchise
Long Lived Assets Held-for-sale [Line Items]
Number of assets held-for-sale | franchise	3		3		3			7
Asset impairments | $	$ 11.7	$ 14.3
Held-for-sale | Franchise | Subsequent Event
Long Lived Assets Held-for-sale [Line Items]
Number of assets held-for-sale | franchise							13
Held-for-sale | Dealership Location
Long Lived Assets Held-for-sale [Line Items]
Number of assets held-for-sale | dealership	3	5	3		3			6
Held-for-sale | Real Estate
Long Lived Assets Held-for-sale [Line Items]
Number of assets held-for-sale | property	2		2		2			1

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