Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Additional Information (Details)

v3.24.3
Goodwill and Intangible Assets - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2024
Mar. 31, 2024
Sep. 30, 2023
Jun. 30, 2024
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]                
Goodwill - Franchise Segment $ 323,100       $ 323,100   $ 229,800 $ 221,800
Goodwill - Preowned Segment 0       0   0 0
Goodwill - Powersports Segment 24,000       24,000   24,000 9,200
GW Accm Amort Fdealer             1,100,000  
GW Amm Amort Preowned             202,900  
Finite-Lived Intangible Assets [Line Items]                
Impairment charges 0   $ 0   (2,400) $ 62,600    
Goodwill [Line Items]                
Goodwill - Preowned Segment 0       0   0 0
Goodwill and Intangible Asset Impairment   $ 0   $ (1,800) 0      
Goodwill 347,100       347,100   253,800 231,000
Goodwill and Intangible Assets Acquired       11,900 0      
Goodwill - Franchise Segment 323,100       323,100   229,800 221,800
Goodwill - Powersports Segment 24,000       24,000   24,000 9,200
PY Acq GW Allocations       12,700 93,500      
PY Acq GW Allocations Fdealer       9,800 93,500      
PY Acq GW Allocations Preowned       0 0      
PY Acq GW Allocations Powersports       2,900 0      
Goodwill and Intangible Assets Acquired Fdealer       0 0      
Goodwill and Intangible Assets Acquired Preowned       0 0      
Goodwill and Intangible Assets Acquired Powersports       11,900 0      
Intangible Assets - Reductions from Dispositions Franchised         (200)      
Intangible Assets - Reductions from dispositions Total         (200)      
GW Asset Impairment Fdealer   0   (1,800) 0      
GW Asset Impairment Preowned   0   0 0      
GW Asset Impairment Powersports   0   0 0      
Indefinite-Lived Intangible Assets [Line Items]                
Franchise Assets - Franchised 371,700       371,700   371,700 371,700
Intangible Assets Preowned 0       0   0 1,900
Intangible Assets - Powersports 45,700       45,700   45,700 23,100
Franchise Assets - Assets Acquired Franchised       0 0      
Intangible Assets - Assets Acquired Preowned       0 0      
Intangible Assets - Assets Acquired Powersports       22,600 0      
Indefinite-Lived Intangible Assets Acquired       22,600 0      
Franchise Assets - reductions from disp fdealer       0 0      
Intangible Assets - reduction from dispositions preowned       (1,900) 0      
Intangible Assets - Reductions from dispositions powersports       0 0      
Indefinite-Lived Intangible Assets, Written off Related to Sale of Business Unit       1,900 0      
Goodwill and Intangible Asset Impairment   $ 0   $ (1,800) 0      
Other Intangible Assets, net 417,400       417,400   $ 417,400 $ 396,700
EchoPark Segment [Member]                
Finite-Lived Intangible Assets [Line Items]                
Impairment charges         1,400      
Powersports Segment                
Finite-Lived Intangible Assets [Line Items]                
Impairment charges $ 0   $ 0   $ 0 $ 0