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Financial Services Arrangements - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Investments in and Advances to Affiliates [Line Items]    
Net amount financed for dealers $ 712,801  
Trade receivables, net 148,725 119,769
Aggregate repurchase obligation, amount 97,897  
Maximum
   
Investments in and Advances to Affiliates [Line Items]    
Aggregate repurchase obligation, percentage 15.00%  
Finance affiliate
   
Investments in and Advances to Affiliates [Line Items]    
Investment in affiliates 55,346 56,988
Polaris Acceptance
   
Investments in and Advances to Affiliates [Line Items]    
Equity method investment ownership percentage 50.00%  
Trade receivables, net 167,218  
Securitization Facility
   
Investments in and Advances to Affiliates [Line Items]    
Outstanding balance of receivables $ 545,583