v3.26.1
Finance Receivables - Additional Information (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
counterparty
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
counterparty
portfolio
Jun. 30, 2025
USD ($)
Sep. 30, 2025
counterparty
Accounts, Notes, Loans and Financing Receivable          
Length of mean reversion process     3 years    
Number of portfolios | portfolio     2    
Minimum          
Accounts, Notes, Loans and Financing Receivable          
Length of economic forecast     1 year    
Maximum          
Accounts, Notes, Loans and Financing Receivable          
Length of economic forecast     2 years    
Harley-Davidson Financial Services          
Accounts, Notes, Loans and Financing Receivable          
Number of counterparties | counterparty         2
Retail          
Accounts, Notes, Loans and Financing Receivable          
Threshold period past due to be charged-off 120 days   120 days    
Reversal of accrued interest against interest income $ 600,000 $ 8,200,000 $ 900,000 $ 17,600,000  
Retail | Harley-Davidson Financial Services          
Accounts, Notes, Loans and Financing Receivable          
New loan originations expected to be purchased 0.66667   0.66667    
Number of counterparties | counterparty 2   2    
Retail | Harley-Davidson Financial Services | Prime          
Accounts, Notes, Loans and Financing Receivable          
Loan servicing fees, percentage 1.00%   1.00%    
Retail | Harley-Davidson Financial Services | Sub-prime          
Accounts, Notes, Loans and Financing Receivable          
Loan servicing fees, percentage 2.50%   2.50%    
Wholesale          
Accounts, Notes, Loans and Financing Receivable          
Reversal of accrued interest against interest income $ 300,000 0 $ 300,000 $ 100,000  
Increase (decrease) In accrued interest, write-off   $ 0