ASSETS HELD FOR SALE - Narrative (Details) $ in Millions	12 Months Ended
Dec. 31, 2024 USD ($) dealership franchise	Dec. 31, 2023 USD ($) dealership property franchise	Dec. 31, 2022 USD ($)
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	$ 172.4	$ 340.1
Liabilities associated with assets held for sale	$ 1.9	$ 2.1
Number of franchise, sold (in franchises) \| franchise	5	1
Number of dealership locations, sold (in dealership locations) \| dealership	5	1
Gain on dealership divestitures, net	$ 8.6	$ 13.5	$ 207.1
Held-for-sale
Long Lived Assets Held-for-sale [Line Items]
Number of real estate properties \| franchise	7	11
Number of dealership locations acquired (in dealership locations) \| dealership	6	11
Held-for-sale \| Real Estate Not Currently Used in Operations
Long Lived Assets Held-for-sale [Line Items]
Number of real estate properties \| property		1

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Amount of assets held-for-sale that are not part of a disposal group.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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The number of real estate properties owned as of the balance sheet date.

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