Quarterly report [Sections 13 or 15(d)]

Segment Information - Summary of Reportable Operating Segment (Details)

v3.25.1
Segment Information - Summary of Reportable Operating Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Revenues:        
Total consolidated revenues $ 3,651,300 $ 3,384,000    
Segment income (loss):        
Segment income (loss) 145,000 106,700    
Interest expense, other, net (27,600) (29,000)    
Other income (expense), net 0 100    
Income (loss) from continuing operations before taxes 97,400 57,500    
Powersports Fixed Ops Cost of Sales (3,600) (3,700)    
Powersports Wholesale Vehicles Cost of Sales (1,000) (100)    
Powersports Used Vehicles Cost of Sales (4,600) (2,500)    
Powersports New Vehicles Cost of Sales (16,700) (13,600)    
EchoPark Wholesale Vehicles Cost of Sales (27,500) (29,200)    
EchoPark Used Vehicles Cost of Sales (468,300) (477,600)    
Franchised Fixed Ops Cost of Sales (230,200) (219,100)    
Franchised Wholesale Vehicles Cost of Sales (55,600) (48,800)    
Franchised Used Vehicles Cost of Sales (705,700) (688,500)    
Franchised Fleet New Vehicles Cost of Sales (21,500) (18,900)    
Franchised New Vehicles Cost of Sales (1,550,200) (1,345,800)    
Impairment charges 1,400 (1,000)    
FloorPlanDepositBalance 365,000   $ 340,000  
Excluded storm-related physical damage and legal costs 900      
Impairment of Long-Lived Assets to be Disposed of   1,000    
FloorPlanInterestExpense 20,000 20,300    
Interest Expense, Other 27,600 29,000    
Payments to Acquire Property, Plant, and Equipment 45,000 43,800    
Cash and cash equivalents 64,600 15,100 44,000 $ 28,900
Assets 5,875,700   5,895,700  
Gain on Franchise Disposal 300      
Powersports Used Vehicle Revenue 5,700 3,400    
Powersports Wholesale Vehicle Revenue 800 100    
Powersports Fixed Ops Revenue 7,000 6,800    
Powersports F&I Revenue 1,500 1,500    
Franchised Dealerships Segment        
Segment income (loss):        
Segment gross profit 494,000 475,800    
Payments to Acquire Property, Plant, and Equipment 44,500 43,000    
Assets 4,637,600   4,704,500  
EchoPark Segment        
Segment income (loss):        
Segment income (loss) 10,300 (2,900)    
Interest expense, other, net 400 700    
Other income (expense), net (100) 100    
Segment gross profit 63,900 52,600    
Other Expenses (10,500) (14,600)    
Rent expense, SG&A (700) 800    
Advertising Expense (7,700) (6,600)    
Compensation Expense, Excluding Cost of Good and Service Sold (25,900) (25,200)    
Closed Store Accrued Expenses   2,100    
Excluded non-recurring compensation-related charges   2,100    
Depreciation, Depletion and Amortization (5,200) (5,500)    
FloorPlanInterestExpense (3,100) (3,800)    
Interest Expense, Other (400) (700)    
Payments to Acquire Property, Plant, and Equipment 200 400    
Assets 577,000   574,500  
Excluded non-recurring compensation-related charges   2,100    
FranchisedDealershipsMember        
Segment income (loss):        
Segment income (loss) 91,900 63,700    
Interest expense, other, net 26,600 27,800    
Other income (expense), net 100 0    
Other Expenses (74,000) (96,600)    
Rent expense, SG&A (9,700) (10,100)    
Advertising Expense (15,800) (15,300)    
Compensation Expense, Excluding Cost of Good and Service Sold (226,400) (216,500)    
Impairment charges   (1,000)    
Excluded non-recurring compensation-related charges   2,200    
Depreciation, Depletion and Amortization (33,400) (29,800)    
FloorPlanInterestExpense (16,300) (16,000)    
Interest Expense, Other (26,600) (27,800)    
Excluded non-recurring compensation-related charges   2,200    
Powersports Segment        
Segment income (loss):        
Segment income (loss) (3,500) (2,300)    
Interest expense, other, net 700 500    
Other income (expense), net 0 0    
Segment gross profit 8,500 7,800    
Loss on disposal of business 900      
Other Expenses (3,400) (2,100)    
Rent expense, SG&A 200 0    
Advertising Expense (200) (400)    
Compensation Expense, Excluding Cost of Good and Service Sold (6,200) (5,600)    
Impairment charges (1,100)      
Depreciation, Depletion and Amortization (1,200) (1,000)    
FloorPlanInterestExpense (500) (500)    
Interest Expense, Other (700) (500)    
Payments to Acquire Property, Plant, and Equipment 300 400    
Assets 231,500   $ 232,700  
Operating segments        
Segment income (loss):        
Segment income (loss) 98,700 58,500    
Operating segments | Franchised Dealerships Segment        
Segment income (loss):        
Segment income (loss) 91,900 63,700    
Operating segments | EchoPark Segment        
Segment income (loss):        
Segment income (loss) 10,300 (2,900)    
Operating segments | Powersports Segment        
Segment income (loss):        
Segment income (loss) (3,500) (2,300)    
Reconciling items        
Segment income (loss):        
Interest expense, other, net (1,400) (1,000)    
Other income (expense), net 97,400 57,500    
Interest Expense, Other 1,400 1,000    
New vehicles        
Revenues:        
Total consolidated revenues 1,678,400 1,475,400    
Used vehicles        
Revenues:        
Total consolidated revenues 1,225,000 1,215,600    
Used vehicles | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 745,600 729,300    
Used vehicles | EchoPark Segment        
Revenues:        
Total consolidated revenues 473,700 482,900    
Wholesale vehicles        
Revenues:        
Total consolidated revenues 82,700 77,300    
Wholesale vehicles | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 54,600 48,600    
Wholesale vehicles | EchoPark Segment        
Revenues:        
Total consolidated revenues 27,300 28,600    
Parts, service and collision repair        
Revenues:        
Total consolidated revenues 474,400 446,700    
Parts, service and collision repair | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 467,400 439,900    
Finance, insurance and other, net        
Revenues:        
Total consolidated revenues 190,800 169,000    
Finance, insurance and other, net | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 130,600 119,600    
Finance, insurance and other, net | EchoPark Segment        
Revenues:        
Total consolidated revenues 58,700 47,900    
Retail New Vehicles [Member]        
Revenues:        
Total consolidated revenues 1,656,300 1,455,800    
Retail New Vehicles [Member] | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 1,636,900 1,439,900    
Fleet New Vehicles [Member]        
Revenues:        
Total consolidated revenues 22,100 19,600    
Fleet New Vehicles [Member] | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 22,100 19,600    
Retail New Vehcile        
Revenues:        
Powersports New Vehicle Revenue 19,400 $ 15,900    
Insurance Settlement [Member]        
Segment income (loss):        
Other Nonrecurring Gain $ 30,000