Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Summary of Reportable Operating Segment (Details)

v3.24.1.u1
Segment Information - Summary of Reportable Operating Segment (Details) - USD ($)
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Revenues:        
Total consolidated revenues $ 3,384,000,000 $ 3,491,200,000    
Segment income (loss):        
Segment income (loss) 106,700,000 106,400,000    
Interest expense, other, net (29,000,000.0) (28,400,000)    
Other income (expense), net 100,000 200,000    
Income (loss) from continuing operations before taxes 57,500,000 63,600,000    
Closed Store Accrued Expenses 2,100,000      
Impairment charges 1,000,000.0 0    
FloorPlanDepositBalance 320,000,000.0   $ 345,000,000.0  
Impairment of Long-Lived Assets to be Disposed of 1,000,000      
Depreciation, Depletion and Amortization 36,300,000 34,300,000    
FloorPlanInterestExpense 20,300,000 14,600,000    
Interest Expense, Other 29,000,000.0 28,400,000    
Payments to Acquire Property, Plant, and Equipment 43,800,000 37,200,000    
Cash and cash equivalents 15,100,000 160,200,000 28,900,000 $ 229,200,000
Assets 5,407,600,000   5,364,600,000  
Powersports Used Vehicle Revenue 3,400,000 4,800,000    
Powersports Wholesale Vehicle Revenue 100,000 200,000    
Powersports Fixed Ops Revenue 6,800,000 6,700,000    
Powersports F&I Revenue 1,500,000 1,500,000    
Powersports Segment Revenue 27,700,000 34,000,000.0    
Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 2,796,900,000 2,806,700,000    
Segment income (loss):        
Interest expense, other, net (27,800,000) (26,900,000)    
Impairment charges 1,000,000.0 0    
Excluded non-recurring compensation-related charges 2,200,000      
Depreciation, Depletion and Amortization 29,800,000 26,500,000    
FloorPlanInterestExpense 16,000,000.0 9,900,000    
Interest Expense, Other 27,800,000 26,900,000    
Payments to Acquire Property, Plant, and Equipment 43,000,000.0 31,000,000.0    
Assets 4,214,100,000   4,110,800,000  
Excluded non-recurring compensation-related charges 2,200,000      
EchoPark Segment        
Revenues:        
Total consolidated revenues 559,400,000 650,500,000    
Segment income (loss):        
Interest expense, other, net (700,000) (900,000)    
Impairment charges 0 0    
Excluded non-recurring compensation-related charges 2,100,000 2,000,000    
Depreciation, Depletion and Amortization 5,500,000 7,000,000.0    
FloorPlanInterestExpense 3,800,000 4,600,000    
Interest Expense, Other 700,000 900,000    
Payments to Acquire Property, Plant, and Equipment 400,000 5,700,000    
Assets 638,200,000   667,900,000  
Excluded non-recurring compensation-related charges 2,100,000 2,000,000    
Powersports Segment        
Segment income (loss):        
Interest expense, other, net (500,000) (600,000)    
Impairment charges 0 0    
Depreciation, Depletion and Amortization 1,000,000.0 800,000    
FloorPlanInterestExpense 500,000 100,000    
Interest Expense, Other 500,000 600,000    
Payments to Acquire Property, Plant, and Equipment 400,000 500,000    
Assets 220,200,000   $ 212,000,000.0  
Operating segments        
Segment income (loss):        
Segment income (loss) 57,500,000 63,600,000    
Operating segments | Franchised Dealerships Segment        
Segment income (loss):        
Segment income (loss) 62,700,000 109,800,000    
Operating segments | EchoPark Segment        
Segment income (loss):        
Segment income (loss) (2,900,000) (46,800,000)    
Operating segments | Powersports Segment        
Segment income (loss):        
Segment income (loss) (2,300,000) 600,000    
Reconciling items        
Segment income (loss):        
Other income (expense), net 56,500,000 63,600,000    
Impairment charges (1,000,000.0) 0    
New vehicles        
Revenues:        
Total consolidated revenues 1,475,400,000 1,461,600,000    
New vehicles | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 1,459,500,000 1,439,800,000    
Used vehicles        
Revenues:        
Total consolidated revenues 1,215,600,000 1,344,900,000    
Used vehicles | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 729,300,000 767,600,000    
Used vehicles | EchoPark Segment        
Revenues:        
Total consolidated revenues 482,900,000 572,500,000    
Wholesale vehicles        
Revenues:        
Total consolidated revenues 77,300,000 85,600,000    
Wholesale vehicles | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 48,600,000 58,400,000    
Wholesale vehicles | EchoPark Segment        
Revenues:        
Total consolidated revenues 28,600,000 27,000,000.0    
Parts, service and collision repair        
Revenues:        
Total consolidated revenues 446,700,000 430,500,000    
Parts, service and collision repair | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 439,900,000 423,800,000    
Finance, insurance and other, net        
Revenues:        
Total consolidated revenues 169,000,000.0 168,600,000    
Finance, insurance and other, net | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 119,600,000 117,100,000    
Finance, insurance and other, net | EchoPark Segment        
Revenues:        
Total consolidated revenues 47,900,000 50,000,000.0    
NewVehiclesMember | EchoPark Segment        
Revenues:        
Total consolidated revenues 0 1,000,000.0    
Retail New Vehicles [Member]        
Revenues:        
Total consolidated revenues 1,455,800,000 1,442,800,000    
Retail New Vehicles [Member] | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 1,439,900,000 1,421,000,000    
Fleet New Vehicles [Member]        
Revenues:        
Total consolidated revenues 19,600,000 18,800,000    
Fleet New Vehicles [Member] | Franchised Dealerships Segment        
Revenues:        
Total consolidated revenues 19,600,000 18,800,000    
Retail New Vehcile        
Revenues:        
Powersports New Vehicle Revenue $ 15,900,000 $ 20,800,000