Organization and Significant Accounting Policies Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014
Property, Plant and Equipment [Line Items]
Advertising expenses	$ 82,600	$ 73,945	$ 58,752
ORVs
Property, Plant and Equipment [Line Items]
Period of warranties provided by Polaris	6 years
Snowmobiles
Property, Plant and Equipment [Line Items]
Period of warranties provided by Polaris	1 year
SVs
Property, Plant and Equipment [Line Items]
Period of warranties provided by Polaris	2 years
Minimum | Motorcycles
Property, Plant and Equipment [Line Items]
Period of warranties provided by Polaris	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 | Motorcycles
Property, Plant and Equipment [Line Items]
Period of warranties provided by Polaris	2 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%			50.00%