Annual report pursuant to Section 13 and 15(d)

Description of Business and Summary of Significant Accounting Policies - Additional Information (Details)

v3.22.0.1
Description of Business and Summary of Significant Accounting Policies - Additional Information (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
USD ($)
Brand
Store
Collision
Segment
State
reporting_unit
Dealerships
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Description Of Business And Summary Of Significant Accounting Policies [Line Items]      
Number of operating segments | Segment 2    
Number of new vehicle dealerships | Dealerships 140    
Number of states | State 17    
Number of different brands of cars and light trucks | Brand 28    
Number of collision repair centers | Collision 17    
Operating lease liabilities $ 301,000    
ROU assets 293,200 $ 330,300  
Amount recognized for floor plan assistance $ 46,500 40,600 $ 41,500
Term for funding of finance contracts 10 days    
Contracts in transit included in receivables, net $ 143,000 179,700  
Receivables, net $ 401,100 371,700  
Number of reporting units | reporting_unit 2    
Goodwill $ 416,400 214,000 475,800
Concentrations of credit risk with respect to receivables are limited primarily to receivables from automobile manufacturers 69,600 80,200  
Advertising expense 61,600 42,200 60,800
Cooperative manufacturer credits advertising expenses $ 22,100 19,200 $ 25,300
Number of reportable Segment | Segment 2    
Income Tax Benefit Goodwill Impairment   51,300  
Manufacturer Receivables included in receivables, net $ 59,900 72,100  
Other Receivables included in receivables, net $ 198,200 119,900  
Number of Stores with Franchise Rights | Dealerships 47    
Goodwill, Impairment Loss   268,000  
Financial institutions      
Description Of Business And Summary Of Significant Accounting Policies [Line Items]      
Concentrations of credit risk with respect to receivables are limited primarily to receivables from financial institutions $ 175,200 208,800  
Franchise assets      
Description Of Business And Summary Of Significant Accounting Policies [Line Items]      
Franchise asset impairment charge   $ 0  
Continuing operations | Franchise assets      
Description Of Business And Summary Of Significant Accounting Policies [Line Items]      
Franchise asset impairment charge $ 0    
Dealership      
Description Of Business And Summary Of Significant Accounting Policies [Line Items]      
Percentage of dealership that is accounted for under the equity method 50.00%    
Franchised Dealerships [Member]      
Description Of Business And Summary Of Significant Accounting Policies [Line Items]      
Number of Stores | Store 110    
Echo Park [Member]      
Description Of Business And Summary Of Significant Accounting Policies [Line Items]      
Number of Stores | Store 46