v3.26.1
Auto Loans Receivable - Financing Receivable Credit Quality Indicators (Details)
$ in Millions
 6 Months Ended
Jun. 30, 2026
USD ($)
fICOScore
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
fICOScore
Auto Loans Receivable      
Auto loans receivable, Originated in current year $ 868.5   $ 1,482.1
Auto loans receivable, Originated in year before current year 1,223.9   628.5
Auto loans receivable, Originated two years before current year 502.3   88.3
Auto loans receivable, Originated three years before current year 67.0   2.2
Auto loans receivable, Originated four years before current year 1.6   7.7
Auto loans receivable, Originated five years or more before current year 4.3   1.1
Total auto loans receivable 2,667.6   2,209.9
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current-period gross write-offs, 2026 origination 1.2    
Current-period gross write-offs, 2025 origination 27.6    
Current-period gross write-offs, 2024 origination 23.0    
Current-period gross write-offs, 2023 origination 7.1    
Current-period gross write-offs, 2022 origination 0.2    
Current-period gross write-offs, Prior to 2022 origination 0.8    
Current-period gross write-offs 59.9 $ 31.4  
Palladium      
Auto Loans Receivable      
Auto loans receivable, Originated in current year 362.2   569.6
Auto loans receivable, Originated in year before current year 463.8   127.0
Auto loans receivable, Originated two years before current year 101.5   0.0
Auto loans receivable, Originated three years before current year 0.0   0.0
Auto loans receivable, Originated four years before current year 0.0   0.0
Auto loans receivable, Originated five years or more before current year 0.0   0.0
Total auto loans receivable $ 927.5   $ 696.6
Palladium | Weighted Average      
Auto Loans Receivable      
Auto loans receivable, FICO Score | fICOScore 734   732
Rhodium      
Auto Loans Receivable      
Auto loans receivable, Originated in current year $ 331.0   $ 369.6
Auto loans receivable, Originated in year before current year 309.9   98.9
Auto loans receivable, Originated two years before current year 79.3   10.9
Auto loans receivable, Originated three years before current year 8.2   0.0
Auto loans receivable, Originated four years before current year 0.0   0.0
Auto loans receivable, Originated five years or more before current year 0.0   0.0
Total auto loans receivable $ 728.4   $ 479.4
Rhodium | Weighted Average      
Auto Loans Receivable      
Auto loans receivable, FICO Score | fICOScore 691   695
Platinum      
Auto Loans Receivable      
Auto loans receivable, Originated in current year $ 168.3   $ 513.1
Auto loans receivable, Originated in year before current year 426.5   359.0
Auto loans receivable, Originated two years before current year 287.3   52.5
Auto loans receivable, Originated three years before current year 40.4   1.0
Auto loans receivable, Originated four years before current year 0.7   1.8
Auto loans receivable, Originated five years or more before current year 1.1   0.3
Total auto loans receivable $ 924.3   $ 927.7
Platinum | Weighted Average      
Auto Loans Receivable      
Auto loans receivable, FICO Score | fICOScore 650   651
Gold      
Auto Loans Receivable      
Auto loans receivable, Originated in current year $ 5.2   $ 25.5
Auto loans receivable, Originated in year before current year 20.2   43.3
Auto loans receivable, Originated two years before current year 34.0   14.7
Auto loans receivable, Originated three years before current year 10.8   0.6
Auto loans receivable, Originated four years before current year 0.4   3.1
Auto loans receivable, Originated five years or more before current year 1.9   0.5
Total auto loans receivable $ 72.5   $ 87.7
Gold | Weighted Average      
Auto Loans Receivable      
Auto loans receivable, FICO Score | fICOScore 622   623
Silver      
Auto Loans Receivable      
Auto loans receivable, Originated in current year $ 1.2   $ 3.0
Auto loans receivable, Originated in year before current year 2.4   0.2
Auto loans receivable, Originated two years before current year 0.2   7.8
Auto loans receivable, Originated three years before current year 5.7   0.5
Auto loans receivable, Originated four years before current year 0.4   1.7
Auto loans receivable, Originated five years or more before current year 0.9   0.2
Total auto loans receivable $ 10.8   $ 13.4
Silver | Weighted Average      
Auto Loans Receivable      
Auto loans receivable, FICO Score | fICOScore 574   575
Bronze      
Auto Loans Receivable      
Auto loans receivable, Originated in current year $ 0.6   $ 1.0
Auto loans receivable, Originated in year before current year 0.9   0.1
Auto loans receivable, Originated two years before current year 0.0   2.3
Auto loans receivable, Originated three years before current year 1.8   0.1
Auto loans receivable, Originated four years before current year 0.1   0.9
Auto loans receivable, Originated five years or more before current year 0.3   0.1
Total auto loans receivable $ 3.7   $ 4.5
Bronze | Weighted Average      
Auto Loans Receivable      
Auto loans receivable, FICO Score | fICOScore 548   548
Copper      
Auto Loans Receivable      
Auto loans receivable, Originated in current year $ 0.0   $ 0.3
Auto loans receivable, Originated in year before current year 0.2   0.0
Auto loans receivable, Originated two years before current year 0.0   0.1
Auto loans receivable, Originated three years before current year 0.1   0.0
Auto loans receivable, Originated four years before current year 0.0   0.2
Auto loans receivable, Originated five years or more before current year 0.1   0.0
Total auto loans receivable $ 0.4   $ 0.6
Copper | Weighted Average      
Auto Loans Receivable      
Auto loans receivable, FICO Score | fICOScore 537   549