v3.26.1
REVENUE RECOGNITION - Contract Assets (Details) - USD ($)
$ in Millions
 3 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Change in Contract with Customer, Asset [Roll Forward]      
Beginning balance $ 152.2 $ 147.5  
Transferred to receivables from contract assets recognized at the beginning of the period (24.4) (25.1)  
Amortization of costs incurred to obtain a contract with a customer (13.0) (8.6)  
Costs incurred to obtain a contract with a customer 13.9 13.1  
Increases related to revenue recognized, inclusive of adjustments to constraint, during the period 23.5 25.3  
Ending balance 152.3 152.2  
Contract assets, current 66.9   $ 65.4
Contract assets, long-term 85.4   82.1
Vehicle repair and maintenance services      
Change in Contract with Customer, Asset [Roll Forward]      
Beginning balance 23.4 22.9  
Transferred to receivables from contract assets recognized at the beginning of the period (23.4) (22.9)  
Amortization of costs incurred to obtain a contract with a customer 0.0 0.0  
Costs incurred to obtain a contract with a customer 0.0 0.0  
Increases related to revenue recognized, inclusive of adjustments to constraint, during the period 23.1 23.4  
Ending balance 23.1 23.4  
Contract assets, current 23.1   22.9
Contract assets, long-term 0.0   0.0
Finance and insurance, net      
Change in Contract with Customer, Asset [Roll Forward]      
Beginning balance 11.5 11.8  
Transferred to receivables from contract assets recognized at the beginning of the period (0.9) (2.1)  
Amortization of costs incurred to obtain a contract with a customer 0.0 0.0  
Costs incurred to obtain a contract with a customer 0.0 0.0  
Increases related to revenue recognized, inclusive of adjustments to constraint, during the period 0.4 1.9  
Ending balance 11.0 11.5  
Contract assets, current 11.0   11.8
Contract assets, long-term 0.0   0.0
Deferred Sales Commissions      
Change in Contract with Customer, Asset [Roll Forward]      
Beginning balance 117.3 112.8  
Transferred to receivables from contract assets recognized at the beginning of the period 0.0 0.0  
Amortization of costs incurred to obtain a contract with a customer (13.0) (8.6)  
Costs incurred to obtain a contract with a customer 13.9 13.1  
Increases related to revenue recognized, inclusive of adjustments to constraint, during the period 0.0 0.0  
Ending balance 118.2 $ 117.3  
Contract assets, current 32.8   30.7
Contract assets, long-term $ 85.4   $ 82.1