Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Summary of Reportable Operating Segment (Details)

v3.22.2.2
Segment Information - Summary of Reportable Operating Segment (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Revenues:            
Total consolidated revenues $ 3,506,200,000 $ 3,352,200,000 $ 6,962,400,000 $ 6,139,000,000    
Segment income (loss):            
Segment income (loss) 154,800,000 165,400,000 309,200,000 253,300,000    
Interest expense, other, net (21,300,000) (10,100,000) (42,100,000) (20,400,000)    
Other income (expense), net (200,000) 0 100,000 100,000    
Income (loss) from continuing operations before taxes 127,200,000 151,000,000.0 256,100,000 223,600,000    
Impairment of Long-Lived Assets to be Disposed of     0      
Depreciation, Depletion and Amortization 31,200,000 24,800,000 61,100,000 48,400,000    
FloorPlanInterestExpense 6,100,000 4,300,000 11,100,000 9,400,000    
Interest Expense, Other 21,300,000 10,100,000 42,100,000 20,400,000    
Payments to Acquire Property, Plant, and Equipment 41,600,000 37,400,000 100,400,000 105,100,000    
Cash and cash equivalents 327,100,000 239,600,000 327,100,000 239,600,000 $ 299,400,000 $ 170,300,000
Other Assets 0 200,000 0 200,000    
Assets 5,023,500,000   5,023,500,000   4,975,100,000  
Franchised Dealerships Segment            
Revenues:            
Total consolidated revenues 2,840,600,000 2,756,600,000 5,671,500,000 5,036,300,000    
Segment income (loss):            
Interest expense, other, net (20,200,000) (9,700,000) (40,300,000) (19,700,000)    
Depreciation, Depletion and Amortization 25,300,000 20,600,000 50,100,000 41,000,000.0    
FloorPlanInterestExpense 3,900,000 3,200,000 7,200,000 7,300,000    
Interest Expense, Other 20,200,000 9,700,000 40,300,000 19,700,000    
Payments to Acquire Property, Plant, and Equipment 21,900,000 25,500,000 52,000,000.0 71,700,000    
Assets 4,031,900,000   4,031,900,000   3,934,900,000  
EchoPark Segment            
Revenues:            
Total consolidated revenues 665,600,000 595,600,000 1,290,900,000 1,102,700,000    
Segment income (loss):            
Interest expense, other, net (1,100,000) (400,000) (1,800,000) (700,000)    
Depreciation, Depletion and Amortization 5,900,000 4,200,000 11,000,000.0 7,400,000    
FloorPlanInterestExpense 2,200,000 1,100,000 3,900,000 2,100,000    
Interest Expense, Other 1,100,000 400,000 1,800,000 700,000    
Payments to Acquire Property, Plant, and Equipment 19,700,000 11,900,000 48,400,000 33,400,000    
Assets 664,500,000   664,500,000   $ 740,600,000  
Operating segments | Franchised Dealerships Segment            
Segment income (loss):            
Segment income (loss) 162,100,000 165,400,000 326,000,000.0 236,000,000.0    
Operating segments | EchoPark Segment            
Segment income (loss):            
Segment income (loss) (34,900,000) (14,400,000) (69,900,000) (12,400,000)    
Reconciling items            
Segment income (loss):            
Other income (expense), net 127,200,000 151,000,000.0 256,100,000 223,600,000    
New vehicles            
Revenues:            
Total consolidated revenues 1,364,100,000 1,462,900,000 2,733,600,000 2,619,200,000    
New vehicles | Franchised Dealerships Segment            
Revenues:            
Total consolidated revenues 1,361,600,000 1,462,000,000 2,725,400,000 2,618,300,000    
Used vehicles            
Revenues:            
Total consolidated revenues 1,449,400,000 1,281,200,000 2,820,200,000 2,384,100,000    
Used vehicles | Franchised Dealerships Segment            
Revenues:            
Total consolidated revenues 871,900,000 761,500,000 1,725,700,000 1,423,100,000    
Used vehicles | EchoPark Segment            
Revenues:            
Total consolidated revenues 577,500,000 519,700,000 1,094,500,000 961,000,000.0    
Wholesale vehicles            
Revenues:            
Total consolidated revenues 121,400,000 84,800,000 290,200,000 159,600,000    
Wholesale vehicles | Franchised Dealerships Segment            
Revenues:            
Total consolidated revenues 79,200,000 63,000,000.0 185,500,000 119,100,000    
Wholesale vehicles | EchoPark Segment            
Revenues:            
Total consolidated revenues 42,200,000 21,800,000 104,700,000 40,500,000    
Parts, service and collision repair            
Revenues:            
Total consolidated revenues 398,100,000 346,100,000 778,700,000 654,200,000    
Parts, service and collision repair | Franchised Dealerships Segment            
Revenues:            
Total consolidated revenues 398,100,000 346,100,000 778,700,000 654,200,000    
Finance, insurance and other, net            
Revenues:            
Total consolidated revenues 173,200,000 177,200,000 339,700,000 321,900,000    
Finance, insurance and other, net | Franchised Dealerships Segment            
Revenues:            
Total consolidated revenues 129,800,000 124,000,000.0 256,200,000 221,600,000    
Finance, insurance and other, net | EchoPark Segment            
Revenues:            
Total consolidated revenues 43,400,000 53,200,000 83,500,000 100,300,000    
NewVehiclesMember | EchoPark Segment            
Revenues:            
Total consolidated revenues 2,500,000 900,000 8,200,000 900,000    
Retail New Vehicles [Member]            
Revenues:            
Total consolidated revenues 1,344,300,000 1,453,200,000 2,695,600,000 2,587,200,000    
Retail New Vehicles [Member] | Franchised Dealerships Segment            
Revenues:            
Total consolidated revenues 1,341,700,000 1,452,300,000 2,687,400,000 2,586,300,000    
Fleet New Vehicles [Member]            
Revenues:            
Total consolidated revenues 19,800,000 9,700,000 38,000,000.0 32,000,000.0    
Fleet New Vehicles [Member] | Franchised Dealerships Segment            
Revenues:            
Total consolidated revenues $ 19,900,000 $ 9,700,000 $ 38,000,000.0 $ 32,000,000.0