Quarterly report pursuant to Section 13 or 15(d)

Business Acquisitions and Dispositions - Additional Information (Details)

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Business Acquisitions and Dispositions - Additional Information (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
retail_Units
Jun. 30, 2023
USD ($)
Jun. 30, 2023
retail_Units
Jun. 30, 2023
Business
Mid-line import franchise              
Business Acquisition [Line Items]              
Number of franchises disposed | retail_Units       1      
Net cash generated from disposition         $ 52,300,000    
Luxury Dealership [Domain]              
Business Acquisition [Line Items]              
Number of franchises disposed | retail_Units       2      
Number of franchises disposed           1 1
Net cash generated from disposition       $ 3,400,000      
Proceeds from sales of dealerships       3,400,000 52,300,000    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other $ 100,000     100,000      
Payments to Acquire Businesses, Gross       75,100,000      
PY Acq GW Allocations Fdealer   $ 9,800,000   0      
PY Acq GW Allocations Powersports   $ 2,900,000   0      
number of powersport stores with GW Adjustment              
Gain on Franchise Disposal (600,000)   $ 20,900,000   20,900,000    
Excluded non-recurring compensation-related charges 11,200,000       4,200,000    
GainLossOnExitOfLeasedDealerships (3,000,000.0)       400,000    
Impairment charges 1,400,000   62,600,000 (2,400,000) 62,600,000    
Excluded storm-related physical damage and legal costs 3,600,000   1,900,000 3,600,000 1,900,000    
Excluded non-recurring compensation-related charges 11,200,000       4,200,000    
Excluded storm-related physical damage and legal costs 3,600,000   1,900,000 3,600,000 1,900,000    
Gain on Franchise Disposal (600,000)   20,900,000   20,900,000    
Impairment charges 1,400,000   62,600,000 (2,400,000) 62,600,000    
GainLossOnExitOfLeasedDealerships (3,000,000.0)       400,000    
EchoPark Segment [Member]              
number of powersport stores with GW Adjustment              
GainLossOnExitOfLeasedDealerships       (3,000,000.0)      
GainLossOnExitOfLeasedDealerships       (3,000,000.0)      
Powersports Segment              
number of powersport stores with GW Adjustment              
Impairment charges 0   0 0 0    
Impairment charges 0   0 0 0    
EchoPark Segment [Member]              
number of powersport stores with GW Adjustment              
GainLossOnExitOfLeasedDealerships     400,000        
Impairment charges       1,400,000      
Impairment charges       1,400,000      
GainLossOnExitOfLeasedDealerships     400,000        
EchoPark Segment [Member] | Inventories              
Business Acquisition [Line Items]              
Restructuring Costs     $ 10,000,000.0   $ 10,000,000.0    
Stand-alone pre-owned vehicle business              
Business Acquisition [Line Items]              
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory 11,100,000     11,100,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment 700,000     700,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill 22,600,000     22,600,000      
Powersports Segment              
Business Acquisition [Line Items]              
Number of acquired franchises | retail_Units           5  
Number of Powersports Stores Acquired | retail_Units           1  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land 29,000,000     29,000,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities $ (300,000)     $ (300,000)