Quarterly report pursuant to Section 13 or 15(d)

Business Acquisitions and Dispositions - Additional Information (Details)

v3.22.2.2
Business Acquisitions and Dispositions - Additional Information (Details)
 3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
Business
Sep. 30, 2022
USD ($)
retail_Units
Business
Sep. 30, 2021
Business
Sep. 30, 2021
USD ($)
Sep. 30, 2021
retail_Units
Business Combinations [Abstract]          
Number of acquired franchises | Business 3        
Business Acquisition [Line Items]          
Number of franchises disposed   0 0   1
Net cash generated from disposition   $ 0      
Proceeds from sales of dealerships   0   $ 3,900,000  
Number of acquired franchises | Business 3        
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory   4,300,000      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles   1,100,000      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred   14,700,000      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets   3,400,000      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities   $ 5,900,000      
Mid-line import franchise          
Business Acquisition [Line Items]          
Net cash generated from disposition       $ 3,900,000  
EchoPark Segment [Member]          
Business Combinations [Abstract]          
Number of acquired franchises | Business   1      
Business Acquisition [Line Items]          
Number of acquired franchises | Business   1      
Stand-alone pre-owned vehicle business          
Business Acquisition [Line Items]          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory $ 31,000,000 $ 31,000,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment 500,000 500,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill $ 33,200,000 $ 33,200,000      
Franchised [Member]          
Business Combinations [Abstract]          
Number of acquired franchises | Business   2      
Business Acquisition [Line Items]          
Number of acquired franchises | Business   2