Quarterly report [Sections 13 or 15(d)]

Business Acquisitions and Dispositions - Additional Information (Details)

v3.25.2
Business Acquisitions and Dispositions - Additional Information (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
USD ($)
Mar. 31, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
retail_Units
Jun. 30, 2024
USD ($)
Business
retail_Units
Dec. 31, 2024
USD ($)
Mid-line import franchise            
Business Combination [Line Items]            
Net cash generated from disposition         $ 3,400,000  
Luxury Dealership [Domain]            
Business Combination [Line Items]            
Number of franchises disposed | retail_Units         2  
Number of franchises disposed | Business         1  
Number of franchises terminated | retail_Units       1    
Number of acquired franchises | retail_Units         0  
Business Combination, Recognized Asset Acquired, Inventory, Current $ 135,600,000     $ 135,600,000    
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment 8,000,000.0     8,000,000.0    
Business Combination, Recognized Liability Assumed, Other Liability, Current (700,000)     (700,000)    
PY Acq GW Allocations Fdealer   $ 93,500,000   (300,000)    
PY Acq GW Allocations Powersports   $ 0   0    
number of powersport stores with GW Adjustment            
Gain on Franchise Disposal 2,400,000     2,700,000    
Excluded non-recurring compensation-related charges     $ 11,200,000      
GainLossOnExitOfLeasedDealerships (800,000)   (3,000,000.0) (1,000,000.0) $ (3,000,000.0)  
Impairment charges (172,400,000)   1,400,000 (173,800,000) (2,400,000)  
Excluded storm-related physical damage and legal costs 4,100,000   3,600,000 5,000,000.0 3,600,000  
Business Combination, Pro Forma Information, Pro Forma Revenue       7,585,300,000    
Business Acquisition, Pro Forma Earnings       36,700,000    
Business Combination, Acquiree's Revenue, Prior Period           $ 14,735,400,000
Business Acquisition, Earnings Reported by Acquired Entity for Last Annual Period           $ 283,400,000
Business Combination, Goodwill, Expected Tax Deductible, Amount 215,500,000     215,500,000    
Business Combination, Acquisition-Related Cost, Expense       0    
Excluded non-recurring compensation-related charges     11,200,000      
Excluded storm-related physical damage and legal costs 4,100,000   3,600,000 5,000,000.0 3,600,000  
Gain on Franchise Disposal 2,400,000     2,700,000    
Impairment charges (172,400,000)   1,400,000 (173,800,000) (2,400,000)  
GainLossOnExitOfLeasedDealerships (800,000)   (3,000,000.0) (1,000,000.0) (3,000,000.0)  
JLR 4 Pack [Member]            
Business Combination [Line Items]            
Business Combination, Recognized Asset Acquired, Other Asset, Current 1,500,000     1,500,000    
Payments to Acquire Businesses, Gross       (359,900,000)    
number of powersport stores with GW Adjustment            
Payments to Acquire Businesses, Gross       (359,900,000)    
CDK Outage Impact [Member]            
number of powersport stores with GW Adjustment            
Excluded non-recurring compensation-related charges         11,200,000  
Excluded non-recurring compensation-related charges         11,200,000  
Powersports Segment            
number of powersport stores with GW Adjustment            
Impairment charges 6,500,000     7,200,000    
Other Asset Impairment Charges       400,000    
Impairment charges $ 6,500,000     7,200,000    
EchoPark Segment [Member]            
number of powersport stores with GW Adjustment            
Impairment charges       200,000 1,400,000  
Impairment charges       $ 200,000 1,400,000  
EchoPark Segment [Member] | CDK Outage Impact [Member]            
number of powersport stores with GW Adjustment            
Excluded non-recurring compensation-related charges     400,000   400,000  
Excluded non-recurring compensation-related charges     $ 400,000   $ 400,000