DEBT - Narrative (Details)							1 Months Ended	12 Months Ended
	Jan. 02, 2024 USD ($)	Dec. 29, 2023 USD ($)	Sep. 08, 2023 USD ($) renewalOption property	Aug. 09, 2023 USD ($) $ / shares shares	Aug. 31, 2021 USD ($)	Jan. 14, 2020 USD ($) tradingDay $ / shares	Aug. 31, 2021 USD ($)	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Feb. 28, 2022 USD ($)
Debt Instrument [Line Items]
Warrants and rights outstanding								$ 6,100,000
Interest expense								77,200,000	$ 52,100,000
Amortization of debt discount and issuance costs								10,400,000	6,400,000
Number of owned properties | property			8
Sale leaseback transaction, gross proceeds			$ 48,200,000
Sale leaseback transaction, transaction costs			$ 1,800,000
Initial term of lease			15 years
Lessee, operating lease, number of renewal options term | renewalOption			5
Operating lease term			40 years
Operating lease expense			$ 3,700,000
Consumer price index multiple			2
Operating leases, rent expense, net, adjustment percentage			2.00%
Sale leaseback transaction, debt interest rate			9.00%
Unamortized debt discount and issuance costs								29,300,000	31,800,000
Derivative liability, noncurrent								$ 100,000	100,000
RumbleOn, Inc. | Class B Common Shares | JMP Securities LLC
Debt Instrument [Line Items]
Noncontrolling interest, ownership						4.99%
Convertible senior 6.75% promissory notes due January 2025
Debt Instrument [Line Items]
Stated interest rate								6.75%
Contractual interest expense								$ 2,600,000	2,600,000
Amortization of debt discounts								$ 3,100,000	2,600,000
Debt instrument, convertible, conversion ratio						0.025		0.0335568
Debt instrument conversion price (in dollars per share) | $ / shares						$ 40.00		$ 29.80
Debt instrument, ownership percentage						25.00%
Debt instrument, debt default amount payable, percent						100.00%
Debt instrument, convertible, threshold percentage of stock price trigger						130.00%
Debt instrument, convertible, threshold trading days | tradingDay						20
Debt instrument, convertible, threshold consecutive trading days | tradingDay						30
Debt instrument, redemption price, percentage						100.00%
Debt conversion amount						$ 25,300,000
Debt conversion rate						18.70%
Unamortized debt discount and issuance costs						$ 13,500,000		$ 3,700,000	6,900,000
Initial Term Loan Facility | Line of Credit
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity					$ 280,000,000		$ 280,000,000
Delayed Draw Term Loan Facility | Line of Credit
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity					120,000,000		120,000,000
Warrants and rights outstanding					$ 40,000,000		$ 40,000,000
Term Loan Credit Agreement due August 2026
Debt Instrument [Line Items]
Stated interest rate								13.90%
Interest accrual percentage (in percent)							0.50%
Paid-in-kind interest percent					1.00%		1.00%
Additional paid-in-kind interest percent					0.50%		0.50%
Interest expense								$ 53,600,000	42,200,000
Amortization of debt discount and issuance costs								7,300,000	6,400,000
Debt instrument, covenant, equity raise				$ 100,000,000
Debt instrument, covenant, equity payment				$ 50,000,000
Debt covenant, warrants to be issued (in shares) | shares				1,212,121
Debt covenant, warrants to be issued share price (in dollars per share) | $ / shares				$ 12.00
Paid fee in kind				$ 700,000
Term Loan Credit Agreement due August 2026 | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable interest rate					1.00%
Term Loan Credit Agreement due August 2026 | Base Rate | Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Variable interest rate					8.25%
Term Loan Credit Agreement due August 2026 | Base Rate | Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Variable interest rate					7.25%
Floor plan notes payable
Debt Instrument [Line Items]
Proceeds from notes payable								449,500,000
Notes payable								291,300,000
Floor plan Line with J.P. Morgan | Line of Credit
Debt Instrument [Line Items]
Interest expense								1,700,000	$ 100,000
Line of credit facility, current borrowing capacity								$ 47,500,000
RumbleOn Finance Line of Credit
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity										$ 25,000,000
Loan of portfolio sale		$ 17,000,000
RumbleOn Finance Line of Credit | Subsequent Event
Debt Instrument [Line Items]
Proceeds from sale, loan and lease, held-for-investment	$ 3,000,000
Repayments of lines of credit	$ 11,200,000
Minimum | Vehicle floor plan notes payable (non-trade) | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable interest rate								8.00%
Minimum | Vehicle floor plan notes payable (trade) | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable interest rate								7.30%
Maximum | Convertible senior 6.75% promissory notes due January 2025
Debt Instrument [Line Items]
Debt instrument, convertible, conversion ratio						0.062
Maximum | Vehicle floor plan notes payable (non-trade) | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable interest rate								18.00%
Maximum | Vehicle floor plan notes payable (trade) | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable interest rate								8.50%