Summary of Significant Accounting Policies (Revision) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2023	Jun. 30, 2023	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net				$ 525,087	$ 531,941
Current assets				1,849,296	1,679,256
Total Assets				7,187,730	6,553,377
Accounts payable, vehicle floor plan payable and accrued liabilities				694,521	574,287
Deferred revenue				396,754	341,296
Current liabilities				1,229,679	1,145,169
Total Liabilities				3,161,677	2,778,889
Liabilities and Equity				7,187,730	6,553,377
Accounts receivable	$ 47,244	$ 83,226	$ 12,381	8,231	45,518	$ (47,430)
Accounts payable and accrued liabilities				24,695	(33,588)	32,397
Deferred revenue	4,614	(48,235)	48,070	38,497	18,219	7,224
Net Cash Provided by Operating Activities	22,811	62,239	202,526	259,875	235,604	202,426
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease Right-of-Use Assets				409,183	429,403
Total lease liabilities				$ 440,924	463,633
As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net					560,779
Current assets					1,708,094
Total Assets					6,582,215
Accounts payable, vehicle floor plan payable and accrued liabilities					563,005
Deferred revenue					381,416
Current liabilities					1,174,007
Total Liabilities					2,807,727
Liabilities and Equity					6,582,215
Accounts receivable	54,245	93,496	15,629		41,635	(59,292)
Accounts payable and accrued liabilities					(44,870)	32,397
Deferred revenue	(2,387)	(58,505)	44,822		33,384	19,086
Net Cash Provided by Operating Activities	22,811	62,239	202,526		235,604	202,426
Adjustments [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net					(28,838)
Current assets					(28,838)
Total Assets					(28,838)
Accounts payable, vehicle floor plan payable and accrued liabilities					11,282
Deferred revenue					(40,120)
Current liabilities					(28,838)
Total Liabilities					(28,838)
Liabilities and Equity					(28,838)
Accounts receivable	(7,001)	(10,270)	(3,248)		3,883	11,862
Accounts payable and accrued liabilities					11,282	0
Deferred revenue	7,001	10,270	3,248		(15,165)	(11,862)
Net Cash Provided by Operating Activities	$ 0	$ 0	$ 0		$ 0	$ 0