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DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) $ in Millions	Jun. 15, 2021 USD ($) derivative	Oct. 02, 2020 USD ($) derivative	Jun. 01, 2019 USD ($)	Jun. 30, 2022 USD ($) derivative	Dec. 31, 2021 USD ($)
Derivative [Line Items]
Non-trade floor plan notes payable				$ 1,060.2	$ 835.9
Interest Rate Contract
Derivative [Line Items]
Agreement term			5 years
Aggregate notional amount			$ 300.0
Interest Rate Contract | Not Designated as Hedging Instrument
Derivative [Line Items]
Agreement term	5 years	5 years
Aggregate notional amount	$ 100.0	$ 100.0
Derivative liability				18.4
Derivative asset				$ 18.4
Interest Rate Cap | Not Designated as Hedging Instrument
Derivative [Line Items]
Number of derivative instruments held | derivative	2	2		4

X

- Definition

Amounts borrowed to finance the purchase of specific new and program vehicle inventories with lenders that are not captive finance subsidiaries of the manufacturer.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Nominal or face amount used to calculate payment on derivative.

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The number of derivative instruments of a particular group held by the entity.

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Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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