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Organization and Significant Accounting Policies - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]      
Long-term debt, fair value $ 1,552,300,000 $ 1,769,300,000  
Long-term debt, carrying value 1,450,700,000 1,693,500,000  
Advertising expenses 95,800,000 77,400,000 $ 65,000,000.0
Operating lease assets 125,400,000 $ 110,200,000  
Operating lease liability $ 127,000,000.0    
ORVs      
Property, Plant and Equipment [Line Items]      
Period of warranties provided by Polaris 6 months    
Minimum      
Property, Plant and Equipment [Line Items]      
Renewal term 1 year    
Minimum | Building and Building Improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, estimated useful life 10 years    
Minimum | Machinery Equipment And Production Tooling      
Property, Plant and Equipment [Line Items]      
Property and equipment, estimated useful life 1 year    
Maximum      
Property, Plant and Equipment [Line Items]      
Renewal term 20 years    
Maximum | Motorcycles      
Property, Plant and Equipment [Line Items]      
Period of warranties provided by Polaris 10 years    
Maximum | Building and Building Improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, estimated useful life 40 years    
Maximum | Machinery Equipment And Production Tooling      
Property, Plant and Equipment [Line Items]      
Property and equipment, estimated useful life 7 years    
Polaris Acceptance      
Property, Plant and Equipment [Line Items]      
Equity method investment ownership percentage 50.00%