Commitments and Contingencies (Details) $ / shares in Units, $ in Millions		12 Months Ended
	Oct. 06, 2025 CAD ($) $ / shares	Oct. 31, 2025 USD ($)	Oct. 31, 2024 USD ($)	Oct. 31, 2023 USD ($)
COMMITMENTS AND CONTINGENT LIABILITIES
Net amount of receivables financed for dealers and distributors		$ 2,680,900,000	$ 2,613,300,000	$ 2,789,500,000
Net amount outstanding of receivables financed for dealers and distributors		807,600,000	979,600,000
Amount of noncancelable purchase commitments		6,900,000
Related Party
COMMITMENTS AND CONTINGENT LIABILITIES
Receivables, net		21,600,000	26,000,000.0
Tornado Infrastructure Equipment
COMMITMENTS AND CONTINGENT LIABILITIES
Payments to acquire businesses, gross	$ 279.3
Business combination, price (in dollars per share) | $ / shares	$ 1.92
Red Iron And TCFCFC
COMMITMENTS AND CONTINGENT LIABILITIES
Repurchase commitment, maximum amount		7,500,000
Wholesale Financing
COMMITMENTS AND CONTINGENT LIABILITIES
Receivables purchased by third party financing company from the company		712,500,000	612,100,000	$ 545,400,000
Receivables financed by third party financing company, excluding Red Iron, outstanding		308,300,000	272,200,000
Maximum amount of contingent liability to repurchase inventory related receivables under limited inventory repurchase agreements		29,000,000.0	29,500,000
End-User Financing
COMMITMENTS AND CONTINGENT LIABILITIES
Contingent liabilities for residual value or credit collection risk		0
End-User Financing | Maximum
COMMITMENTS AND CONTINGENT LIABILITIES
Exposure for credit collection		$ 4,100,000	$ 2,900,000