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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Narrative (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) derivative swap	Dec. 30, 2021 derivative	Oct. 21, 2021 USD ($)	Dec. 31, 2020 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Amount expected to be reclassified from other comprehensive loss into earnings	$ (7,900,000)
Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Other deferred costs, net	6,100,000
Interest Rate Swaps | Floorplan interest expense, net | Accumulated Other Comprehensive Income (Loss)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Tax portion of reclassification out of AOCI	1,900,000
Interest Rate Swaps | Not Designated as Hedging Instrument | Floorplan interest expense, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Number of additional forward interest rate swaps | derivative		8
Notional value	$ 425,000,000
Weighted average interest rate (as a percentage)	1.70%
Derivative instruments expired during the period | derivative	5
Derivative instruments terminated during the period | derivative	3
Interest Rate Swaps | Not Designated as Hedging Instrument | Floorplan interest expense, net | Accumulated Other Comprehensive Income (Loss)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Unrealized mark-to market gains	$ 3,100,000
Realized losses	$ 6,500,000
Interest Rate Swap I | Designated as Hedging Instrument | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Number of additional forward interest rate swaps | swap	37
Notional value	$ 774,000,000
Weighted average interest rate (as a percentage)	1.30%
Interest Rate Swap II | Designated as Hedging Instrument | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Number of additional forward interest rate swaps | swap	4
Notional value	$ 200,000,000
Weighted average interest rate (as a percentage)	1.20%
4.00% Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Interest rate (as a percentage)			4.00%
4.00% Senior Notes | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Aggregate principal amount	$ 750,000,000		$ 200,000,000
Interest rate (as a percentage)	4.00%		4.00%
Demand Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Carrying value	$ 600,000			$ 60,000,000

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